For people with diabetes, glucose monitors are a valuable tool to monitor their blood sugar. The current generation of these biosensors detect glucose levels with thin, metallic filaments inserted in subcutaneous tissue, the deepest layer of the skin where most body fat is stored.

Medical technology company Biolinq is developing a new type of glucose sensor that doesn’t go deeper than the dermis, the middle layer of skin that sits above the subcutaneous tissue. The company’s “intradermal” biosensors take advantage of metabolic activity in shallower layers of skin, using an array of electrochemical microsensors to measure glucose—and other chemicals in the body—just beneath the skin’s surface.

Biolinq just concluded a pivotal clinical trial earlier this month, according to CEO Rich Yang, and the company plans to submit the device to the U.S. Food and Drug Administration for approval at the end of the year. In April, Biolinq received US $58 million in funding to support the completion of its clinical trials and subsequent submission to the FDA.

Biolinq’s glucose sensor is “the world’s first intradermal sensor that is completely autonomous,” Yang says. While other glucose monitors require a smartphone or other reader to collect and display the data, Biolinq’s includes an LED display to show when the user’s glucose is within a healthy range (indicated by a blue light) or above that range (yellow light). “We’re providing real-time feedback for people who otherwise could not see or feel their symptoms,” Yang says. (In addition to this real-time feedback, the user can also load long-term data onto a smartphone by placing it next to the sensor, like Abbott’s FreeStyle Libre, another glucose monitor.)

More than 2,000 microsensor components are etched onto each 200-millimeter silicon wafer used to manufacture the biosensors.Biolinq

Biolinq’s hope is that its approach could lead to sustainable changes in behavior on the part of the individual using the sensor. The device is intentionally placed on the upper forearm to be in plain sight, so users can receive immediate feedback without manually checking a reader. “If you drink a glass of orange juice or soda, you’ll see this go from blue to yellow,” Yang explains. That could help users better understand how their actions—such as drinking a sugary beverage—change their blood sugar and take steps to reduce that effect.

Biolinq’s device consists of an array of microneedles etched onto a silicon wafer using semiconductor manufacturing. (Other glucose sensors’ filaments are inserted with an introducer needle.) Each chip has a small 2-millimeter by 2-millimeter footprint and contains seven independent microneedles, which are coated with membranes through a process similar to electroplating in jewelry making. One challenge the industry has faced is ensuring that microsensors do not break at this small scale. The key engineering insight Biolinq introduced, Yang says, was using semiconductor manufacturing to build the biosensors. Importantly, he says, silicon “is harder than titanium and steel at this scale.”

Miniaturization allows for sensing closer to the surface of the skin, where there is a high level of metabolic activity. That makes the shallow depth ideal for monitoring glucose, as well as other important biomarkers, Yang says. Due to this versatility, combined with the use of a sensor array, the device in development can also monitor lactate, an important indicator of muscle fatigue. With the addition of a third data point, ketones (which are produced when the body burns fat), Biolinq aims to “essentially have a metabolic panel on one chip,” Yang says.

Using an array of sensors also creates redundancy, improving the reliability of the device if one sensor fails or becomes less accurate. Glucose monitors tend to drift over the course of wear, but with multiple sensors, Yang says that drift can be better managed.

One downside to the autonomous display is the drain on battery life, Yang says. The battery life limits the biosensor’s wear time to 5 days in the first-generation device. Biolinq aims to extend that to 10 days of continuous wear in its second generation, which is currently in development, by using a custom chip optimized for low-power consumption rather than off-the-shelf components.

The company has collected nearly 1 million hours of human performance data, along with comparators including commercial glucose monitors and venous blood samples, Yang says. Biolinq aims to gain FDA approval first for use in people with type 2 diabetes not using insulin and later expand to other medical indications.

This article appears in the August 2024 print issue as “Glucose Monitor Takes Page From Chipmaking.”

Last month when Google introduced its new AI search tool, called AI Overviews, the company seemed confident that it had tested the tool sufficiently, noting in the announcement that “people have already used AI Overviews billions of times through our experiment in Search Labs.” The tool doesn’t just return links to Web pages, as in a typical Google search, but returns an answer that it has generated based on various sources, which it links to below the answer. But immediately after the launch users began posting examples of extremely wrong answers, including a pizza recipe that included glue and the interesting fact that a dog has played in the NBA.

Renée DiResta has been tracking online misinformation for many years as the technical research manager at Stanford’s Internet Observatory.

While the pizza recipe is unlikely to convince anyone to squeeze on the Elmer’s, not all of AI Overview’s extremely wrong answers are so obvious—and some have the potential to be quite harmful. Renée DiResta has been tracking online misinformation for many years as the technical research manager at Stanford’s Internet Observatory and has a new book out about the online propagandists who “turn lies into reality.” She has studied the spread of medical misinformation via social media, so IEEE Spectrum spoke to her about whether AI search is likely to bring an onslaught of erroneous medical advice to unwary users.

I know you’ve been tracking disinformation on the Web for many years. Do you expect the introduction of AI-augmented search tools like Google’s AI Overviews to make the situation worse or better?

Renée DiResta: It’s a really interesting question. There are a couple of policies that Google has had in place for a long time that appear to be in tension with what’s coming out of AI-generated search. That’s made me feel like part of this is Google trying to keep up with where the market has gone. There’s been an incredible acceleration in the release of generative AI tools, and we are seeing Big Tech incumbents trying to make sure that they stay competitive. I think that’s one of the things that’s happening here.

We have long known that hallucinations are a thing that happens with large language models. That’s not new. It’s the deployment of them in a search capacity that I think has been rushed and ill-considered because people expect search engines to give them authoritative information. That’s the expectation you have on search, whereas you might not have that expectation on social media.

There are plenty of examples of comically poor results from AI search, things like how many rocks we should eat per day [a response that was drawn for an Onion article]. But I’m wondering if we should be worried about more serious medical misinformation. I came across one blog post about Google’s AI Overviews responses about stem-cell treatments. The problem there seemed to be that the AI search tool was sourcing its answers from disreputable clinics that were offering unproven treatments. Have you seen other examples of that kind of thing?

DiResta: I have. It’s returning information synthesized from the data that it’s trained on. The problem is that it does not seem to be adhering to the same standards that have long gone into how Google thinks about returning search results for health information. So what I mean by that is Google has, for upwards of 10 years at this point, had a search policy called Your Money or Your Life. Are you familiar with that?

I don’t think so.

DiResta: Your Money or Your Life acknowledges that for queries related to finance and health, Google has a responsibility to hold search results to a very high standard of care, and it’s paramount to get the information correct. People are coming to Google with sensitive questions and they’re looking for information to make materially impactful decisions about their lives. They’re not there for entertainment when they’re asking a question about how to respond to a new cancer diagnosis, for example, or what sort of retirement plan they should be subscribing to. So you don’t want content farms and random Reddit posts and garbage to be the results that are returned. You want to have reputable search results.

That framework of Your Money or Your Life has informed Google’s work on these high-stakes topics for quite some time. And that’s why I think it’s disturbing for people to see the AI-generated search results regurgitating clearly wrong health information from low-quality sites that perhaps happened to be in the training data.

So it seems like AI overviews is not following that same policy—or that’s what it appears like from the outside?

DiResta: That’s how it appears from the outside. I don’t know how they’re thinking about it internally. But those screenshots you’re seeing—a lot of these instances are being traced back to an isolated social media post or a clinic that’s disreputable but exists—are out there on the Internet. It’s not simply making things up. But it’s also not returning what we would consider to be a high-quality result in formulating its response.

I saw that Google responded to some of the problems with a blog post saying that it is aware of these poor results and it’s trying to make improvements. And I can read you the one bullet point that addressed health. It said, “For topics like news and health, we already have strong guardrails in place. In the case of health, we launched additional triggering refinements to enhance our quality protections.” Do you know what that means?

DiResta: That blog posts is an explanation that [AI Overviews] isn’t simply hallucinating—the fact that it’s pointing to URLs is supposed to be a guardrail because that enables the user to go and follow the result to its source. This is a good thing. They should be including those sources for transparency and so that outsiders can review them. However, it is also a fair bit of onus to put on the audience, given the trust that Google has built up over time by returning high-quality results in its health information search rankings.

I know one topic that you’ve tracked over the years has been disinformation about vaccine safety. Have you seen any evidence of that kind of disinformation making its way into AI search?

DiResta: I haven’t, though I imagine outside research teams are now testing results to see what appears. Vaccines have been so much a focus of the conversation around health misinformation for quite some time, I imagine that Google has had people looking specifically at that topic in internal reviews, whereas some of these other topics might be less in the forefront of the minds of the quality teams that are tasked with checking if there are bad results being returned.

What do you think Google’s next moves should be to prevent medical misinformation in AI search?

DiResta: Google has a perfectly good policy to pursue. Your Money or Your Life is a solid ethical guideline to incorporate into this manifestation of the future of search. So it’s not that I think there’s a new and novel ethical grounding that needs to happen. I think it’s more ensuring that the ethical grounding that exists remains foundational to the new AI search tools.

A thimbleful of soil can contain a universe of microorganisms, up to 10 billion by some estimates. Now a group of researchers in Bath, United Kingdom, are building prototype technologies that harvest electrons exhaled by some micro-species.

The idea is to power up low-yield sensors and switches, and perhaps help farmers digitally optimize crop yields to meet increasing demand and more and more stressful growing conditions. There could be other tasks, too, that might make use of a plant-and-forget, low-yield power source—such as monitoring canals for illegal waste dumping.

The research started small, based out of the University of Bath, with field-testing in a Brazilian primary school classroom and a green pond near it—just before the onset of the pandemic.

“We had no idea what the surroundings would be. We just packed the equipment we needed and went,” says Jakub Dziegielowski, a University of Bath, U.K. chemical engineering Ph.D. student. “And the pond was right by the school—it was definitely polluted, very green, with living creatures in it, and definitely not something I’d feel comfortable drinking from. So it got the job done.”

The experiments they did along with kids from the school and Brazilian researchers that summer of 2019 were aimed at running water purifiers. It did so. However, it also wasn’t very efficient, compared to, say, a solar panel.

So work has moved on in the Bath labs: in the next weeks, Dziegielowski will both turn 29 and graduate with his doctorate. And he, along with two other University of Bath advisors and colleagues recently launched a spinoff company—it’s called Bactery—to perfect a prototype for a network of soil microbial fuel cells for use in agriculture.

A microbial fuel cell is a kind of power plant that converts chemical energy stored in organic molecules into electrical energy, using microbes as a catalyst. It’s more often used to refer to liquid-based systems, Dziegielowski says. Organics from wastewater serve as the energy source, and the liquid stream mixes past the electrodes.

A soil microbial fuel cell, however, has one of its electrodes—the anode, which absorbs electrons—in the dirt. The other electrode, the cathode, is exposed to air. Batteries work because ions move through an electrolyte between electrodes to complete a circuit. In this case, the soil itself acts as the electrolyte—as well as source of the catalytic microbes, and as the source of the fuel.

The Bath, U.K.-based startup Bactery has developed a set up fuel cells powered by microbes in the soil—with, in the prototype pictured here, graphite mats as electrodes. University of Bath

Fields full of Watts

In a primary school in the fishing village of Icapuí on Brazil’s semi-arid northeastern coast, the group made use of basic components: graphite felt mats acting as electrodes, and nylon pegs to maintain spacing and alignment between them. (Bactery is now developing new kinds of casing.)

By setting up the cells in a parallel matrix, the Icapuí setup could generate 38 milliwatts per square meter. In work since, the Bath group’s been able to reach 200 milliwatts per square meter.

Electroactive bacteria—also called exoelectrogens or electricigens—take in soluble iron or acids or sugar and exhale electrons. There are dozens of species of microbes that can do this, including bacteria belonging to genera such as Geobacter and Shewanella. There are many others.

But 200 milliwatts per square meter is not a lot of juice: enough to charge a mobile phone, maybe, or keep an LED nightlight going—or, perhaps, serve as a power source for sensors or irrigation switches. “As in so many things, it comes down to the economics,” says Bruce Logan, an environmental engineer at Penn State who wrote a 2007 book, Microbial Fuel Cells.

A decade ago Palo Alto engineers launched the MudWatt, a self-contained kit that could light a small LED. It’s mostly marketed as a school science project. But even now, some 760 million people do not have reliable access to electricity. “In remote areas, soil microbial fuel cells with higher conversion and power management efficiencies would fare better than batteries,” says Sheela Berchmans, a retired chief scientist of the Central Electrochemical Research Institute in Tamil Nadu, India.

Korneel Rabaey, professor in the department of biotechnology at the University of Ghent, in Belgium, says electrochemical micro-power sources—a category that now includes the Bactery battery—is gaining buzz in resource recovery, for uses such as extracting pollutants from wastewater, with electricity as a byproduct. “You can think of many applications that don’t require a lot of power,” he says, “But where sensors are important.”

In the United States alone, more than 100,000 people currently need a lifesaving organ transplant. Instead of waiting for donors, one way to solve this crisis in the future is to assemble replacement organs with bio-printing—3D printing that uses inks containing living cells. Scientists in Israel have found that origami techniques could help fold sensors into bio-printed materials to help determine whether they are behaving safely and properly.

Although bio-printing something as complex as a human organ is still a distant possibility, there are a host of near-term applications for the technique. For example, in drug research, scientists can bio-print living, three-dimensional tissues with which to examine the effects of various compounds.

Ideally, researchers would like to embed sensors within bio-printed items to keep track of how well they are behaving. However, the three-dimensional nature of bio-printed objects makes it difficult to lodge sensors within them in a way that can monitor every part of the structures.

“It will, hopefully in the future, allow us to monitor and assess 3D biostructures before we would like to transplant them.” —Ben Maoz, Tel Aviv University

Now scientists have developed a 3D platform inspired by origami that can help embed sensors in bio-printed objects in precise locations. “It will, hopefully in the future, allow us to monitor and assess 3D biostructures before we would like to transplant them,” says Ben Maoz, a professor of biomedical engineering at Tel Aviv University in Israel.

The new platform is a silicone rubber device that can fold around a bio-printed structure. The prototype holds a commercial array of 3D electrodes to capture electrical signals. It also possesses other electrodes that can measure electrical resistance, which can reveal how permeable cells are to various medications. A custom 3D software model can tailor the design of the origami and all the electrodes so that the sensors can be placed in specific locations in the bio-printed object.

The scientists tested their device on bio-printed clumps of brain cells. The research team also grew a layer of cells onto the origami that mimicked the blood-brain barrier, a cell layer that protects the brain from undesirable substances that the body’s blood might be carrying. By folding this combination of origami and cells onto the bio-printed structures, Maoz and his colleagues were able to monitor neural activity within the brain cells and see how their synthetic blood-brain barrier might interfere with medications intended to treat brain diseases.

Maoz says the new device can incorporate many types of sensors beyond electrodes, such as temperature or acidity sensors. It can also incorporate flowing liquid to supply oxygen and nutrients to cells, the researchers note.

Currently, this device “will mainly be used for research and not for clinical use,” Maoz says. Still, it could “significantly contribute to drug development—assessing drugs that are relevant to the brain.”

The researchers say they can use their origami device with any type of 3D tissue. For example, Maoz says they can use it on bio-printed structures made from patient cells “to help with personalized medicine and drug development.”

The origami platform could also help embed devices that can modify bio-printed objects. For instance, many artificially grown tissues function better if they are placed under the kinds of physical stresses they might normally experience within the body, and the origami platform could integrate gadgets that can exert such mechanical forces on bio-printed structures. “This can assist in accelerating tissue maturation, which might be relevant to clinical applications,” Maoz says.

The scientists detailed their findings in the 26 June issue of Advanced Science.

Tech startups are stepping up to meet the needs of 60 million people worldwide who use opioids, representing about 1 percent of the world’s adult population. In the United States, deaths involving synthetic opioids have risen 1,040 percent from 2013 to 2019. The COVID-19 pandemic and continued prevalence of fentanyl have since worsened the toll, with an estimated 81,083 fatal overdoses in 2023 alone.

Innovations include biometric monitoring systems that help doctors determine proper medication dosages, nerve stimulators that relieve withdrawal symptoms, wearable and ingestible systems that watch for signs of an overdose, and autonomous drug delivery systems that could prevent overdose deaths.

Helping Patients Get the Dosage They Need

For decades, opioid blockers and other medications that suppress cravings have been the primary treatment tool for opioid addiction. However, despite its clinical dominance, this approach remains underutilized. In the United States, only about 22 percent of the 2.5 million adults with opioid use disorder receive medication-assisted therapy such as methadone, Suboxone, and similar drugs.

Determining patients’ ideal dosage during the early stages of treatment is crucial for keeping them in recovery programs. The shift from heroin to potent synthetic opioids, like fentanyl, has complicated this process, as the typical recommended medication doses can be too low for those with a high fentanyl tolerance.

A North Carolina-based startup is developing a predictive algorithm to help clinicians tailor these protocols and track real-time progress with biometric data. OpiAID, which is currently working with 1,000 patients across three clinical sites, recently launched a research pilot with virtual treatment provider Bicycle Health. Patients taking Suboxone will wear a Samsung Galaxy Watch6 to measure their heart rate, body movements, and skin temperature. OpiAID CEO David Reeser says clinicians can derive unique stress indications from this data, particularly during withdrawal. (He declined to share specifics on how the algorithm works.)

“Identifying stress biometrically plays a role in how resilient someone will be,” Reeser adds. “For instance, poor heart rate variability during sleep could indicate that a patient may be more susceptible that day. In the presence of measurable amounts of withdrawal, the potential for relapse on illicit medications may be more likely.”

Nerve Stimulators Provide Opioid Withdrawal Relief

While OpiAID’s software solution relies on monitoring patients, electrical nerve stimulation devices take direct action. These behind-the-ear wearables distribute electrodes at nerve endings around the ear and send electrical pulses to block pain signals and relieve withdrawal symptoms like anxiety and nausea.

The U.S. Food and Drug Administration (FDA) has cleared several nerve stimulator devices, such as DyAnsys’ Drug Relief, which periodically administers low-level electrical pulses to the ear’s cranial nerves. Others include Spark Biomedical’s Sparrow system and NET Recovery’s NETNeuro device.

Masimo’s behind-the-ear Bridge device costs US $595 for treatment providers.Masimo

Similarly, Masimo’s Bridge relieves withdrawal symptoms by stimulating the brain and spinal cord via electrodes. The device is intended to help patients initiating, transitioning into, or tapering off medication-assisted treatment. In a clinical trial, Bridge reduced symptom severity by 85 percent in the first hour and 97 percent by the fifth day. A Masimo spokesperson said the company’s typical customers are treatment providers and correctional facilities, though it’s also seeing interest from emergency room physicians.

Devices Monitor Blood Oxygen to Prevent Overdose Deaths

In 2023, the FDA cleared Masimo’s Opioid Halo device to monitor blood oxygen levels and alert emergency contacts if it detects opioid-induced respiratory depression, the leading cause of overdose deaths. The product includes a pulse oximeter cable and disposable sensors connected to a mobile app.

Opioid Halo utilizes Masimo’s signal extraction technology, first developed in the 1990s, which improves upon conventional oxygen monitoring techniques by filtering out artifacts caused by blood movement. Masimo employs four signal-processing engines to distinguish the true signal from noise that can lead to false alarms; for example, they distinguish between arterial blood and low-oxygen venous blood.

Masimo’s Opioid Halo system is available over-the-counter without a prescription. Masimo

Opioid Halo is available over-the-counter for US $250. A spokesperson says sales have continued to show promise as more healthcare providers recommend it to high-risk patients.

An Ingestible Sensor to Watch Over Patients

Last year, in a first-in-human clinical study, doctors used an ingestible sensor to monitor vital signs from patients’ stomachs. Researchers analyzed the breathing patterns and heart rates of 10 sleep study patients at West Virginia University. Some participants had episodes of central sleep apnea, which can be a proxy for opioid-induced respiratory depression. The capsule transmitted this data wirelessly to external equipment linked to the cloud.

Celero’s Rescue-Rx capsule would reside in a user’s stomach for one week.Benjamin Pless/Celero Systems

“To our knowledge, this is the first time anyone has demonstrated the ability to accurately monitor human cardiac and respiratory signals from an ingestible device,” says Benjamin Pless, one of the study’s co-authors. “This was done using very low-power circuitry including a radio, microprocessor, and accelerometer along with software for distinguishing various physiological signals.”

Pless and colleagues from MIT and Harvard Medical School started Celero Systems to commercialize a modified version of that capsule, one that will also release an opioid antagonist after detecting respiratory depression. Pless, Celero’s CEO, says the team has successfully demonstrated the delivery of nalmefene, an opioid antagonist similar to Narcan, to rapidly reverse overdoses.

Celero’s next step is integrating the vitals-monitoring feature for human trials. The company’s final device, Rescue-Rx, is intended to stay in the stomach for one week before passing naturally. Pless says Rescue-Rx’s ingestible format will make the therapy cheaper and more accessible than wearable autoinjectors or implants.

Celero’s capsule can detect vital signs from within the stomach. www.youtube.com

Autonomous Delivery of Overdose Medication

Rescue-Rx isn’t the only autonomous drug-delivery project under development. A recent IEEE Transactions on Biomedical Circuits and Systems paper introduced a wrist-worn near-infrared spectroscopy sensor to detect low blood oxygen levels related to an overdose.

Purdue University biomedical engineering professor Hugh Lee and graduate student Juan Mesa, who both co-authored the study, say that while additional human experiments are necessary, the findings represent a valuable tool in counteracting the epidemic. “Our wearable device consistently detected low-oxygenation events, triggered alarms, and activated the circuitry designed to release the antidote through the implantable capsule,” they wrote in an email.

Lee and Purdue colleagues founded Rescue Biomedical to commercialize the A2D2 system, which includes a wristband and an implanted naloxone capsule that releases the drug if oxygen levels drop below 90 percent. Next, the team will evaluate the closed-loop system in mice.

This story was updated on 27 August 2024 to correct the name of Masimo’s Opioid Halo device.

UPDATE 31 OCTOBER 2024: No. 1 no longer. The would-have-been groundbreaking study published in Nature Communications by Amit Goyal et al. claiming the world’s highest-performing high-temperature superconducting wires yet has been retracted by the authors.

The journal’s editorial statement that now accompanies the paper says that after publication, an error in the calculation of the reported performance was identified. All of the study’s authors agreed with the retraction.

The researchers were first alerted to the issue by Evgeny Talantsev at the Mikheev Institute of Metal Physics in Ekaterinburg, Russia, and Jeffery Tallon at the Victoria University of Wellington in New Zealand. In a 2015 study, the two researchers had suggested upper limits for thin-film superconductors, and Tallon notes follow-up papers showed these limits held for more than 100 known superconductors. “The Goyal paper claimed current densities 2.5 times higher, so it was immediately obvious to us that there was a problem here,” he says.

Upon request, Goyal and his colleagues “very kindly agreed to release their raw data and did so quickly,” Tallon says. He and Talantsev discovered a mistake in the conversion of magnetization units.

“Most people who had been in the game for a long time would be fully conversant with the units conversion because the instruments all deliver magnetic data in [centimeter-gram-second] gaussian units, so they always have to be converted to [the International System of Units],” Tallon says. “It has always been a little tricky, but students are asked to take great care and check their numbers against other reports to see if they agree.”

In a statement, Goyal notes he and his colleagues “intend to continue to push the field forward” by continuing to explore ways to enhance wire performance using nanostructural modifications. —Charles Q. Choi

Original article from 17 August, 2024 follows:

Superconductors have for decades spurred dreams of extraordinary technological breakthroughs, but many practical applications for them have remained out of reach. Now a new study reveals what may be the world’s highest-performing high-temperature superconducting wires yet, ones that carry 50 percent as much current as the previous record-holder. Scientists add this advance was achieved without increased costs or complexity to how superconducting wires are currently made.

Superconductors conduct electricity with zero resistance. Classic superconductors work only at super-cold temperatures below 30 degrees Kelvin. In contrast, high-temperature superconductors can operate at temperatures above 77 K, which means they can be cooled to superconductivity using comparatively inexpensive and less burdensome cryogenics built around liquid nitrogen coolant.

Regular electrical conductors all resist electron flow to some degree, resulting in wasted energy. The fact that superconductors conduct electricity without dissipating energy has long lead to dreams of significantly more efficient power grids. In addition, the way in which rivers of electric currents course through them means superconductors can serve as powerful electromagnets, for applications such as maglev trains, better MRI scanners for medicine, doubling the amount of power generated from wind turbines, and nuclear fusion power plants.

“Today, companies around the world are fabricating kilometer-long, high-temperature superconductor wires,” says Amit Goyal, SUNY Distinguished Professor and SUNY Empire Innovation Professor at the University of Buffalo in New York.

However, many large-scale applications for superconductors may stay fantasies until researchers can find a way to fabricate high-temperature superconducting wires in a more cost-effective manner.

In the new research, scientists have created wires that have set new records for the amount of current they can carry at temperatures ranging from 5 K to 77 K. Moreover, fabrication of the new wires requires processes no more complex or costly than those currently used to make high-temperature superconducting wires.

“The performance we have reported in 0.2-micron-thick wires is similar to wires almost 10 times thicker,” Goyal says.

At 4.2 K, the new wires carried 190 million amps per square centimeter without any externally applied magnetic field. This is some 50 percent better than results reported in 2022 and a full 100 percent better than ones detailed in 2021, Goyal and his colleagues note. At 20 K and under an externally applied magnetic field of 20 tesla—the kind of conditions envisioned for fusion applications—the new wires may carry about 9.3 million amps per square centimeter, roughly 5 times greater than present-day commercial high-temperature superconductor wires, they add.

Another factor key to the success of commercial high-temperature superconductor wires is pinning force—the ability to keep magnetic vortices pinned in place within the superconductors that could otherwise interfere with electron flow. (So in that sense higher pinning force values are better here—more conducive to the range of applications expected for such high-capacity, high-temperature superconductors.) The new wires showed record-setting pinning forces of more than 6.4 trillion newtons at 4.3 K under a 7 tesla magnetic field. This is more than twice as much as results previously reported in 2022.

The new wires are based on rare-earth barium copper oxide (REBCO). The wires use nanometer-sized columns of insulating, non-superconducting barium zirconate at nanometer-scale spacings within the superconductor that can help pin down magnetic vortices, allowing for higher supercurrents.

The researchers made these gains after a few years spent optimizing deposition processes, Goyal says. “We feel that high-temperature superconductor wire performance can still be significantly improved,” he adds. “We have several paths to get to better performance and will continue to explore these routes.”

Based on these results, high-temperature superconductor wire manufacturers “will hopefully further optimize their deposition conditions to improve the performance of their wires,” Goyal says. “Some companies may be able to do this in a short time.”

The hope is that superconductor companies will be able to significantly improve performance without too many changes to present-day manufacturing processes. “If high-temperature superconductor wire manufacturers can even just double the performance of commercial high-temperature superconductor wires while keeping capital equipment costs the same, it could make a transformative impact to the large-scale applications of superconductors,” Goyal says.

The scientists detailed their findings on 7 August in the journal Nature Communications.

This story was updated on 19 August 2024 to correct Amit Goyal’s title and affiliation.

Blood pressure is one of the critical vital signs for health, but standard practice can only capture a snapshot, using a pressure cuff to squeeze arteries. Continuous readings are available, but only by inserting a transducer directly into an artery via a needle and catheter. Thanks to researchers at Caltech, however, it may soon be possible to measure blood pressure continuously at just about any part of the body.

In a paper published in July in PNAS Nexus, the researchers describe their resonance sonomanometry (RSM) approach to reading blood pressure. This new technology uses ultrasound to measure the dimensions of artery walls. It also uses sound waves to find resonant frequencies that can reveal the pressure within those walls via arterial wall tension. This information is sufficient to calculate the absolute pressure within the artery at any moment, without the need for calibration.

This last factor is important, as other non-invasive approaches only provide relative changes in blood pressure. They require periodic calibration using readings from a traditional pressure cuff. The RSM technology eliminates the need for calibration, making continuous readings more reliable.

How resonance sonomanometry works

The researchers’ RSM system uses an ultrasound transducer to measure the dimensions of the artery. It also transmits sound waves at different frequencies. The vibrations cause the arterial walls to move in and out in response, creating a distinct pattern of motion. When the resonant frequency is transmitted, the top and bottom of the artery will move in and out in unison.

This resonant frequency can be used to determine the tension of the artery walls. The tension in the walls is directly correlated with the fluid pressure of the blood within the artery. As a result, the blood pressure can be calculated at any instant based on the dimensions of the artery and its resonant frequency.

The researchers have validated this approach with both mockups and human subjects. They first tested the technology on an arterial model that used a thin-walled rubber tubing and a syringe to vary the pressure. They tested this mockup using multiple pressures and tubing of different diameters.

The researchers then took measurements with human subjects at their carotid arteries (located in the neck), using a standard pressure cuff to take intermittent measurements. The RSM technology was successful, and subsequently was also demonstrated on axillary (shoulder), brachial (arm), and femoral (leg) arteries. The readings were so clear that the researchers mention that they might even be able to detect blood pressure changes related to respiration and its impact on thoracic pressure.

Unlike traditional pressure cuff approaches, RSM provides data during the entire heartbeat cycle, and not just the systolic and diastolic extremes (In other words, the two numbers you receive during a traditional blood pressure measurement). And the fact that RSM works with different-sized arteries means that it should be applicable across different body sizes and types. Using ultrasound also eliminates possible complications such as skin coloration that can affect light-based devices.

The researchers tested their ultrasound-based blood pressure approach on subjects’ carotid arteries.Esperto Medical

“I’m a big fan of continuous monitoring; a yearly blood pressure reading in the doctor’s office is insufficient for decision making,” says Nick van Terheyden, M.D., the digital health leader with Iodine Software, a company providing machine learning technologies to improve healthcare insights. “A new approach based on good old rules of math and physics is an exciting development.”

The Caltech researchers have created a spinoff company, Esperto Medical, to develop a commercial product using RSM technology. The company has created a transducer module that is smaller than a deck of cards, making it practical to incorporate into a wearable armband. They hope to miniaturize the hardware to the point that it could be incorporated into a wrist-worn device. According to Raymond Jimenez, Esperto Medical’s chief technology officer, “this technology poses the potential to unlock accurate, calibration-free [blood pressure measurements] everywhere—in the clinic, at the gym, and even at home.”

It appears that there’s a significant market for such a product. “92 percent of consumers who intend to buy a wearable device are willing to pay extra for a health-related feature, and blood pressure ranks first among such features,” says Elizabeth Parks, the president of Internet of Things consulting firm Parks Associates.

In the future, rather than relying on arm-squeezing blood pressure cuffs, smart watches may be able to directly monitor blood pressure throughout the day, just as they already do for heart rate and other vital signs.

For the first time, scientists have created a flexible programmable chip that is not made of silicon. The new ultralow-power 32-bit microprocessor from U.K.-based Pragmatic Semiconductor and its colleagues can operate while bent, and can run machine learning workloads. The microchip’s open-source RISC-V architecture suggests it might cost less than a dollar, putting it in a position to power wearable healthcare electronics, smart package labels, and other inexpensive items, its inventors add.

For example, “we can develop an ECG patch that has flexible electrodes attached to the chest and a flexible microprocessor connected to flexible electrodes to classify arrhythmia conditions by processing the ECG data from a patient,” says Emre Ozer, senior director of processor development at Pragmatic, a flexible chip manufacturer in Cambridge, England. Detecting normal heart rhythms versus an arrhythmia “is a machine learning task that can run in software in the flexible microprocessor,” he says.

Flexible electronics have the potential for any application requiring interactions with soft materials, such as devices worn on or implanted within the body. Those applications could include on-skin computers, soft robotics, and brain-machine interfaces. But, conventional electronics are made of rigid materials such as silicon.

Open-source, Flexible, and Fast Enough

Pragmatic sought to create a flexible microchip that cost significantly less to make than a silicon processor. The new device, named Flex-RV, is a 32-bit microprocessor based on the metal-oxide semiconductor indium gallium zinc oxide (IGZO).

Attempts to create flexible devices from silicon require special packaging for the brittle microchips to protect them from the mechanical stresses of bending and stretching. In contrast, pliable thin-film transistors made from IGZO can be made directly at low temperatures onto flexible plastics, leading to lower costs.

The new microchip is based on the RISC-V instruction set. (RISC stands for reduced instruction set computer.) First introduced in 2010, RISC-V aims to enable smaller, lower-power, better-performing processors by slimming down the core set of instructions they can execute.

“Our end goal is to democratize computing by developing a license-free microprocessor,” Ozer says.

RISC-V’s is both free and open-source, letting chip designer dodge the costly licensing fees associated with proprietary architectures such as x86 and Arm. In addition, proprietary architectures offer limited opportunities to customize them, as adding new instructions is generally restricted. In contrast, RISC-V encourages such changes.

A bent Flex-RV microprocessor runs a program to print ‘Hello World’. Pragmatic Semiconductor

“We chose the Serv designed by Olof Kindgren... as the open source 32-bit RISC-V CPU when we designed Flex-RV,” Ozer says. “Serv is the smallest RISC-V processor in the open-source community.”

Other processors have been built using flexible semiconductors, such as Pragmatic’s 32-bit PlasticARM and an ultracheap microcontroller designed by engineers in Illinois. Unlike these earlier devices, Flex-RV is programmable and can run compiled programs written in high-level languages such as C. In addition, the open-source nature of RISC-V also let the researchers equip Flex-RV with a programmable machine learning hardware accelerator, enabling artificial intelligence applications.

Each Flex-RV microprocessor has a 17.5 square millimeter core and roughly 12,600 logic gates. The research team found Flex-RV could run as fast as 60 kilohertz while consuming less than 6 milliwatts of power.

All previous flexible non-silicon microprocessors were tested solely on the wafers they were made on. In contrast, Flex-RV was tested on flexible printed circuit boards, which let the researchers see how well it operated when flexed. The Pragmatic team found that Flex-RV could still execute programs correctly when bent to a curve with a radius of 3 millimeters. Performance varied between a 4.3 percent slowdown to a 2.3 percent speedup depending on the way it was bent. “Further research is needed to understand how bending conditions such as direction, orientation and angle impact performance at macro and micro scales,” Ozer says.

Silicon microchips can run at gigahertz speeds, much faster than Flex-RV, but that shouldn’t be a problem, according to Ozer. “Many sensors—for example, temperature, pressure, odor, humidity, pH, and so on—in the flexible electronics world typically operate very slowly at hertz or kilohertz regimes,” he says. “These sensors are used in smart packaging, labels and wearable healthcare electronics, which are the emerging applications for which flexible microprocessors will be useful. Running the microprocessor at 60 kHz would be more than enough to meet the requirements of these applications.”

Ozer and his team suggest each Flex-RV might cost less than a dollar. Although Ozer did not want to say how much less than a dollar it might cost, he says they are confident such low costs are possible “thanks to low-cost flexible chip fabrication technology by Pragmatic and a license-free RISC-V technology.”

The scientists detailed their findings online 25 September in the journal Nature.

This article is part of our exclusive IEEE Journal Watch series in partnership with IEEE Xplore.

Any imaging technique that allows scientists to observe the inner workings of a living organism, in real-time, provides a wealth of information compared to experiments in a test tube. While there are many such imaging approaches in existence, they require test subjects—in this case rodents—to be tethered to the monitoring device. This limits the ability of animals under study to roam freely during experiments.

Researchers have recently designed a new microscope with a unique feature: It’s capable of transmitting real-time imaging from inside live mice via Bluetooth to a nearby phone or laptop. Once the device has been further miniaturized, the wireless connection will allow mice and other test subject animals to roam freely, making it easier to observe them in a more natural state.

“To the best of our knowledge, this is the first Bluetooth wireless microscope,” says Arvind Pathak, a professor at the Johns Hopkins University School of Medicine.

Through a series of experiments, Pathak and his colleagues demonstrate how the novel wireless microscope, called BLEscope, offers continuous monitoring of blood vessels and tumors in the brains of mice. The results are described in a study published 24 September in IEEE Transactions on Biomedical Engineering.

Microscopes have helped shed light on many biological mysteries, but the devices typically require that cells be removed from an organism and studied in a test tube. Any opportunity to study the biological process as it naturally occurs in the in the body (“in vivo”) tends to offer more useful and thorough information.

Several different miniature microscopes designed for in vivo experiments in animals exist. However, Pathak notes that these often require high power consumption or a wire to be tethered to the device to transmit the data—or both—which may restrict an animal’s natural movements and behavior.

“To overcome these hurdles, [Johns Hopkins University Ph.D. candidate] Subhrajit Das and our team designed an imaging system that operates with ultra-low power consumption—below 50 milliwatts—while enabling wireless data transmission and continuous, functional imaging at spatial resolutions of 5 to 10 micrometers in [rodents],” says Pathak.

The researchers created BLEscope using an off-the-shelf, low-power image sensor and microcontroller, which are integrated on a printed circuit board. Importantly, it has two LED lights of different colors—green and blue—that help create contrast during imaging.

“The BLE protocol enabled wireless control of the BLEscope, which then captures and transmits images wirelessly to a laptop or phone,” Pathak explains. “Its low power consumption and portability make it ideal for remote, real-time imaging.”

Pathak and his colleagues tested BLEscope in live mice through two experiments. In the first scenario, they added a fluorescent marker into the blood of mice and used BLEscope to characterize blood flow within the animals’ brains in real-time. In the second experiment, the researchers altered the oxygen and carbon dioxide ratios of the air being breathed in by mice with brain tumors, and were able to observe blood vessel changes in the fluorescently marked tumors.

“The BLEscope’s key strength is its ability to wirelessly conduct high-resolution, multi-contrast imaging for up to 1.5 hours, without the need for a tethered power supply,” Pathak says.

However, Pathak points out that the current prototype is limited by its size and weight. BLEscope will need to be further miniaturized, so that it doesn’t interfere with animals’ abilities to roam freely during experiments.

“We’re planning to miniaturize the necessary electronic components onto a flexible light-weight printed circuit board, which would reduce weight and footprint of the BLEscope to make it suitable for use on freely moving animals,” says Pathak.

This story was updated on 14 October 2024, to correct a statement about the size of the BLEscope.

Emteq Labs wants eyewear to be the next frontier of wearable health technology.

The Brighton, England-based company introduced today its emotion-sensing eyewear, Sense. The glasses contain nine optical sensors distributed across the rims that detect subtle changes in facial expression with more than 93 percent accuracy when paired with Emteq’s current software. “If your face moves, we can capture it,” says Steen Strand, whose appointment as Emteq’s new CEO was also announced today. With that detailed data, “you can really start to decode all kinds of things.” The continuous data could help people uncover patterns in their behavior and mood, similar to an activity or sleep tracker.

Emteq is now aiming to take its tech out of laboratory settings with real-world applications. The company is currently producing a small number of Sense glasses, and they’ll be available to commercial partners in December.

The announcement comes just weeks after Meta and Snap each unveiled augmented reality glasses that remain in development. These glasses are “far from ready,” says Strand, who led the augmented reality eyewear division while working at Snap from 2018 to 2022. “In the meantime, we can serve up lightweight eyewear that we believe can deliver some really cool health benefits.”

Fly Vision Vectors

While current augmented reality (AR) headsets have large battery packs to power the devices, glasses require a lightweight design. “Every little bit of power, every bit of weight, becomes critically important,” says Strand. The current version of Sense weighs 62 grams, slightly heavier than the Ray-Ban Meta smart glasses, which weigh in at about 50 grams.

Because of the weight constraints, Emteq couldn’t use the power-hungry cameras typically used in headsets. With cameras, motion is detected by looking at how pixels change between consecutive images. The method is effective, but captures a lot of redundant information and uses more power. The eyewear’s engineers instead opted for optical sensors that efficiently capture vectors when points on the face move due to the underlying muscles. These sensors were inspired by the efficiency of fly vision. “Flies are incredibly efficient at measuring motion,” says Emteq founder and CSO Charles Nduka. “That’s why you can’t swat the bloody things. They have a very high sample rate internally.”

Sense glasses can capture data as often as 6,000 times per second. The vector-based approach also adds a third dimension to a typical camera’s 2D view of pixels in a single plane.

These sensors look for activation of facial muscles, and the area around the eyes is an ideal spot. While it’s easy to suppress or force a smile, the upper half of our face tends to have more involuntary responses, explains Nduka, who also works as a plastic surgeon in the United Kingdom. However, the glasses can also collect information about the mouth by monitoring the cheek muscles that control jaw movements, conveniently located near the lower rim of a pair of glasses. The data collected is then transmitted from the glasses to pass through Emteq’s algorithms in order to translate the vector data into usable information.

In addition to interpreting facial expressions, Sense can be used to track food intake, an application discovered by accident when one of Emteq’s developers was wearing the glasses while eating breakfast. By monitoring jaw movement, the glasses detect when a user chews and how quickly they eat. Meanwhile, a downward-facing camera takes a photo to log the food, and uses a large language model to determine what’s in the photo, effectively making food logging a passive activity. Currently, Emteq is using an instance of OpenAI’s GPT-4 large language model to accomplish this, but the company has plans to create their own algorithm in the future. Other applications, including monitoring physical activity and posture, are also in development.

One Platform, Many Uses

Nduka believes Emteq’s glasses represent a “fundamental technology,” similar to how the accelerometer is used for a host of applications in smartphones, including managing screen orientation, tracking activity, and even revealing infrastructure damage.

Similarly, Emteq has chosen to develop the technology as a general facial data platform for a range of uses. “If we went deep on just one, it means that all the other opportunities that can be helped—especially some of those rarer use cases—they’d all be delayed,” says Nduka. For example, Nduka is passionate about developing a tool to help those with facial paralysis. But a specialized device for those patients would have high unit costs and be unaffordable for the target user. Allowing more companies to use Emteq’s intellectual property and algorithms will bring down cost.

In this buckshot approach, the general target for Sense’s potential use cases is health applications. “If you look at the history of wearables, health has been the primary driver,” says Strand. The same may be true for eyewear, and he says there’s potential for diet and emotional data to be “the next pillar of health” after sleep and physical activity.

How the data is delivered is still to be determined. In some applications, it could be used to provide real-time feedback—for instance, vibrating to remind the user to slow down eating. Or, it could be used by health professionals only to collect a week’s worth of at-home data for patients with mental health conditions, which Nduka notes largely lack objective measures. (As a medical device for treatment of diagnosed conditions, Sense would have to go through a more intensive regulatory process.) While some users are hungry for more data, others may require a “much more gentle, qualitative approach,” says Strand. Emteq plans to work with expert providers to appropriately package information for users.

Interpreting the data must be done with care, says Vivian Genaro Motti, an associate professor at George Mason University who leads the Human-Centric Design Lab. What expressions mean may vary based on cultural and demographic factors, and “we need to take into account that people sometimes respond to emotions in different ways,” Motti says. With little regulation of wearable devices, she says it’s also important to ensure privacy and protect user data. But Motti raises these concerns because there is a promising potential for the device. “If this is widespread, it’s important that we think carefully about the implications.”

Privacy is also a concern to Edward Savonov, a professor of electrical and computer engineering at the University of Alabama, who developed a similar device for dietary tracking in his lab. Having a camera mounted on Emteq’s glasses could pose issues, both for the privacy of those around a user and a user’s own personal information. Many people eat in front of their computer or cell phone, so sensitive data may be in view.

For technology like Sense to be adopted, Sazonov says questions about usability and privacy concerns must first be answered. “Eyewear-based technology has potential for a great future—if we get it right.”

Manu Prakash spoke with IEEE Spectrum shortly after returning to Stanford University from a month aboard a research vessel off the coast of California, where he was testing tools to monitor oceanic carbon sequestration. The associate professor conducts fieldwork around the world to better understand the problems he’s working on, as well as the communities that will be using his inventions.

Prakash develops imaging instruments and diagnostic tools, often for use in global health and environmental sciences. His devices typically cost radically less than conventional equipment—he aims for reductions of two or more orders of magnitude. Whether he’s working on pocketable microscopes, mosquito or plankton monitors, or an autonomous malaria diagnostic platform, Prakash always includes cost and access as key aspects of his engineering. He calls this philosophy “frugal science.”

Why should we think about science frugally?

Manu Prakash: To me, when we are trying to ask and solve problems and puzzles, it becomes important: In whose hands are we putting these solutions? A frugal approach to solving the problem is the difference between 1 percent of the population or billions of people having access to that solution.

Lack of access creates these kinds of barriers in people’s minds, where they think they can or cannot approach a kind of problem. It’s important that we as scientists or just citizens of this world create an environment that feels that anybody has a chance to make important inventions and discoveries if they put their heart to it. The entrance to all that is dependent on tools, but those tools are just inaccessible.

How did you first encounter the idea of “frugal science”?

Prakash: I grew up in India and lived with very little access to things. And I got my Ph.D. at MIT. I was thinking about this stark difference in worlds that I had seen and lived in, so when I started my lab, it was almost a commitment to [asking]: What does it mean when we make access one of the critical dimensions of exploration? So, I think a lot of the work I do is primarily driven by curiosity, but access brings another layer of intellectual curiosity.

How do you identify a problem that might benefit from frugal science?

Prakash: Frankly, it’s hard to find a problem that would not benefit from access. The question to ask is “Where are the neglected problems that we as a society have failed to tackle?” We do a lot of work in diagnostics. A lot [of our solutions] beat the conventional methods that are neither cost effective nor any good. It’s not about cutting corners; it’s about deeply understanding the problem—better solutions at a fraction of the cost. It does require invention. For that order of magnitude change, you really have to start fresh.

Where does your involvement with an invention end?

Prakash: Inventions are part of our soul. Your involvement never ends. I just designed the 415th version of Foldscope [a low-cost “origami” microscope]. People only know it as version 3. We created Foldscope a long time ago; then I realized that nobody was going to provide access to it. So we went back and invented the manufacturing process for Foldscope to scale it. We made the first 100,000 Foldscopes in the lab, which led to millions of Foldscopes being deployed.

So it’s continuous. If people are scared of this, they should never invent anything [laughs], because once you invent something, it’s a lifelong project. You don’t put it aside; the project doesn’t put you aside. You can try to, but that’s not really possible if your heart is in it. You always see problems. Nothing is ever perfect. That can be ever consuming. It’s hard. I don’t want to minimize this process in any way or form.

In the spirit of the Halloween season, IEEE Spectrum presents a pair of stories that—although grounded in scientific truth rather than the macabre—were no less harrowing for those who lived them. In today’s installment, Robert Langer had to push back against his field’s conventional wisdom to pioneer a drug-delivery mechanism vital to modern medicine.

Nicknamed the Edison of Medicine, Robert Langer is one of the world’s most-cited researchers, with over 1,600 published papers, 1,400 patents, and a top-dog role as one of MIT’s nine prestigious Institute Professors. Langer pioneered the now-ubiquitous drug delivery systems used in modern cancer treatments and vaccines, indirectly saving countless lives throughout his 50-year career.

But, much like Edison and other inventors, Langer’s big ideas were initially met with skepticism from the scientific establishment.

He came up in the 1970s as a chemical engineering postdoc working in the lab of Dr. Judah Folkman, a pediatric surgeon at the Boston Children’s Hospital. Langer was tasked with solving what many believed was an impossible problem—isolating angiogenesis inhibitors to halt cancer growth. Folkman’s vision of stopping tumors from forming their own self-sustaining blood vessels was compelling enough, but few believed it possible.

Langer encountered both practical and social challenges before his first breakthrough. One day, a lab technician accidentally spilled six months’ worth of samples onto the floor, forcing him to repeat the painstaking process of dialyzing extracts. Those months of additional work steered Langer’s development of novel microspheres that could deliver large molecules of medicine directly to tumors.

In the 1970s, Langer developed these tiny microspheres to release large molecules through solid materials, a groundbreaking proof-of-concept for drug delivery.Robert Langer

Langer then submitted the discovery to prestigious journals and was invited to speak at a conference in Michigan in 1976. He practiced the 20-minute presentation for weeks, hoping for positive feedback from respected materials scientists. But when he stepped off the podium, a group approached him and said bluntly, “We don’t believe anything you just said.” They insisted that macromolecules were simply too large to pass through solid materials, and his choice of organic solvents would destroy many inputs. Conventional wisdom said so.

Nature published Langer’s paper three months later, demonstrating for the first time that non-inflammatory polymers could enable the sustained release of proteins and other macromolecules. The same year, Science published his isolation mechanism to restrict tumor growth.

Langer and Folkman’s research paved the way for modern drug delivery.MIT and Boston Children’s Hospital

Even with impressive publications, Langer still struggled to secure funding for his work in controlling macromolecule delivery, isolating the first angiogenesis inhibitors, and testing their behavior. His first two grant proposals were rejected on the same day, a devastating blow for a young academic. The reviewers doubted his experience as “just an engineer” who knew nothing about cancer or biology. One colleague tried to cheer him up, saying, “It’s probably good those grants were rejected early in your career. Since you’re not supporting any graduate students, you don’t have to let anyone go.” Langer thought the colleague was probably right, but the rejections still stung.

His patent applications, filed alongside Folkman at the Boston Children’s Hospital, were rejected five years in a row. After all, it’s difficult to prove you’ve got something good if you’re the only one doing it. Langer remembers feeling disappointed but not crushed entirely. Eventually, other scientists cited his findings and expanded upon them, giving Langer and Folkman the validation needed for intellectual property development. As of this writing, the pair’s two studies from 1976 have been cited nearly 2,000 times.

As the head of MIT’s Langer Lab, he often shares these same stories of rejection with early-career students and researchers. He leads a team of over 100 undergrads, grad students, postdoctoral fellows, and visiting scientists, all finding new ways to deliver genetically engineered proteins, DNA, and RNA, among other research areas. Langer’s reputation is further bolstered by the many successful companies he co-founded or advised, like mRNA leader Moderna, which rose to prominence after developing its widely used COVID-19 vaccine.

Langer sometimes thinks back to those early days—the shattered samples, the cold rejections, and the criticism from senior scientists. He maintains that “Conventional wisdom isn’t always correct, and it’s important to never give up—(almost) regardless of what others say.”

Acadia Pharmaceuticals did not disclose the buyer of the priority review voucher. The biotech received the voucher last year alongside the regulatory decision that made its drug Daybue the first FDA-approved treatment for the rare disease Rett syndrome.

The post Acadia Pharma Sells Voucher for Speedier FDA Drug Review for $150M appeared first on MedCity News.

When it comes to the effects that the upcoming Trump presidency will have on healthcare, attendees’ attitudes ranged from cautiously optimistic to fairly anxious. Some of the issues they highlighted included mental health parity, telehealth prescribing flexibilities, and the role of Robert F. Kennedy Jr.

The post How Did Attendees at a Behavioral Health Conference React to Trump’s Victory? appeared first on MedCity News.

Three ways health plans can engage, connect with, and delight their pregnant members to nurture goodwill, earn long-term trust, and foster loyal relationships that last.

The post Pregnant and Empowered: Why Trust is the Latest Form of Member Engagement appeared first on MedCity News.

Navigating the regulatory and ethical requirements of different medical data providers across many different countries, as well as safeguarding patient privacy, is a mammoth task that requires extra resources and expertise.  

The post AI is Revolutionizing Healthcare, But Are We Ready for the Ethical Challenges?  appeared first on MedCity News.

Value-based care contracting is especially difficult for behavioral health providers, Taft Parsons III, chief psychiatric officer at CVS Health/Aetna, pointed out during a conference this week.

The post CVS Health Exec: Payers Need to Stop Making Behavioral Health Providers Jump Through Hoops In Order to Participate in Value-Based Care appeared first on MedCity News.

The vast majority of older adults want to age at home. To support that goal, doctors should encourage them to consider their care options — long before they need assistance.

The post Through Early Discussions About Elder Care, Doctors Can Empower Seniors to Age in Place appeared first on MedCity News.

Many companies are entering the digital youth mental health space, but it’s important to know which ones are effective, according to a panel of investors at the Behavioral Health Tech conference.

The post Measuring Impact in Digital Youth Mental Health: What Investors Look For appeared first on MedCity News.

Two executives at behavioral health care companies discussed why it’s important for provider organizations to partner with the 988 Suicide & Crisis Lifeline during a panel at the Behavioral Health Tech conference.

The post There’s an Opportunity for More Providers to Partner with the 988 Lifeline, Execs Say appeared first on MedCity News.

Access to care isn’t enough. Healthcare organizations need to build trust in order to reach underserved communities, experts said on a recent panel.

The post How Can Healthcare Organizations Earn Trust with Marginalized Communities? appeared first on MedCity News.

Top challenges impacting specialty pharmacy outcomes, and how health systems may achieve efficiencies and enhance performance for optimal outcomes.

The post An Integrated Approach to Optimizing Specialty Pharmacy and Accelerating Performance appeared first on MedCity News.

Neurogene’s Rett syndrome gene therapy has preliminary data supporting safety and efficacy of the one-time treatment. But a late-breaking report of a serious complication in a patient who received the high dose sent shares of the biotech downward.

The post Neurogene Gene Therapy Shows Signs of Efficacy in Small Study, But an Adverse Event Spooks Investors appeared first on MedCity News.

Fort Health’s $5.5 million in funding was led by Twelve Below and Vanterra and included participation from Redesign Health, Blue Venture Fund and True Wealth Ventures.

The post Fort Health Secures $5.5M to Expand Access to Integrated Pediatric Mental Health Care appeared first on MedCity News.

The Pew Charitable Trusts joined dozens of research, health care, and nonprofit stakeholders in urging President-elect Joe Biden to prioritize and strengthen the national response to antibiotic resistance.

In 2018, opioid overdoses in the United States caused one death every 11 minutes, resulting in nearly 47,000 fatalities. The most effective treatments for opioid use disorder (OUD) are three medications approved by the Food and Drug Administration (FDA): methadone, buprenorphine, and naltrexone.

As winter arrives and daylight hours decrease, it gets easier to hit the snooze button and stay in bed. It turns out that there’s a scientific reason behind this phenomenon that helps to explain why people struggle to adjust their internal clocks—also known as circadian rhythm or sleep-wake cycle—when the weather turns colder.

Few correctional facilities in the United States have treatment programs for individuals with opioid use disorder (OUD), despite clear evidence that certain medications reduce the risk of overdose and death. Even in facilities where treatment is available, the COVID-19 pandemic has complicated efforts to provide such care.

The Pew Charitable Trusts sent comments Jan. 4 to the Office of the National Coordinator for Health Information Technology (ONC) and the Centers for Medicare & Medicaid Services (CMS) urging them to support the easy exchange of individuals’ health records through a pair of regulations.

Breaking COVID-19’s chain of transmission requires effective physical distancing, contact tracing and rapid analyses of demographic data to reveal illness clusters and populations at high risk, such as people older than 65, Latinos and Blacks.

Dr. Cassandra Quave’s path to her work as a leader in antibiotic drug discovery research initiatives at Emory University in Atlanta started when she was a child and she and her family dealt with her own serious health issues that have had life-long repercussions.

Between 1999 and 2014, opioid use disorder (OUD) among pregnant women more than quadrupled, risking the health of the women—before and after giving birth—and their infants. As states grapple with COVID-19’s exacerbation of the opioid crisis, several are taking innovative steps to address the needs of high-risk groups, including low-income, postpartum patients with OUD.

Over the past year, COVID-19 has taken a grave toll in lives as well as on medical and health care systems worldwide. The pandemic has laid bare the importance of public health readiness and the myriad consequences when such a crisis strikes an unprepared population.

The Pew Charitable Trusts today commended Michigan Governor Gretchen Whitmer (D), state Senate Majority Leader Mike Shirkey (R), and Lee Chatfield (R)—whose term as state House Speaker ended last month—for passing and signing a bipartisan package of bills aimed at protecting public safety while reducing the number of people in county jails.

As the coronavirus pandemic grips the world, the opioid epidemic continues to affect millions of Americans. Several states are developing innovative ways to tackle this public health issue. In this episode, we speak with Beth Connolly, who leads Pew’s research on substance use disorders, and Louisiana Representative Paula Davis, who helped ensure effective treatment in her state.

Sales of medically important antibiotics for use in food-producing animals increased 3% in 2019, according to recent data from the U.S. Food and Drug Administration. This is the second year in a row that the quantities of antibiotics sold for animal use have risen, underscoring the need for further FDA action to ensure judicious use of these lifesaving drugs.

Technology has revolutionized the way people live their lives. Individuals can use smartphones to access their bank account, shop from almost any store, and connect with friends and family around the globe. In fact, these personal devices have tethered communities together during the coronavirus pandemic, allowing many people to maintain much of their lives remotely.

Yesterday’s conference sessions surfaced interesting questions and approaches regarding the post-acute sector, bundled payment, emergency medicine and anesthesia. Post-Acute Focus: With more and more focus on the need to rationalize and re-organize the post-acute sector, we have seen multiple industry leaders start to evolve their strategies.  I blogged yesterday about AccentCare’s interesting strategy in the...… Continue Reading

After four years of negotiations, European lawmakers agreed on June 15 on a new EU Medical Devices Regulation (MDR). The MDR is the equivalent to the FDA’s CDRH regulations in the United States and essentially specifies the applicable rules when importing medical devices into Europe, which is the world’s second-largest device market. Rules relate, for...… Continue Reading

A large amount of wind, much discussion about the U.S healthcare, and the public getting soaked again – if you were thinking about Washington, DC and the new Congress, you’re 3,000 miles away from the action. This is the week of the annual JP Morgan Healthcare conference in San Francisco, with many thousands of healthcare...… Continue Reading

Addressing the Social Determinants of Health:  Is the healthcare industry pushing a rock up a hill?  We collectively are trying to provide healthcare with improved quality and reduced cost, but the structure of the nation’s healthcare system remains heavily siloed with the social determinants of health often falling wholly or partly outside the mandate and...… Continue Reading

Day 3 of the JPMorgan healthcare conference was one of striking contrasts between the old and the new. (And, by the way, the rain finally stopped for a day, but it will be back tomorrow to finish off the last day of the conference). The Old:  Sitting in the Community Health Systems (CHS) presentation and...… Continue Reading

Some interesting presentations on the last day of the JPMorgan Healthcare Conference that concentrated on common themes – the increasing importance of ancillary business line to bolster core business revenue and of filling in holes to achieve scale and full-service offerings. Genesis Healthcare – The largest U.S. skilled nursing facility (SNF) provider, which also is...… Continue Reading

Hospitals across the U.S. have significantly restricted the use of pain medications containing narcotics. This shift comes amid […]

Social media has become a significant source of health-related content. But while it connects people to news, updates, […]

We’re seeing an alarming increase in the number of failed biotech companies. While the biotechnology industry holds enormous […]

Act now for the best deal on SAS Global Forum 2016 registration. You already know that SAS Global Forum will pay for itself in learning opportunities.

This paper highlights the many enhancements to SAS/ETS software and demonstrates how these features can help your organization increase revenue and enhance productivity.

 We introduced a Topics tab in the online documentation a few releases ago, and there are corresponding pages in our focus area that briefly describe the topic areas and the procedures that perform analyses for those areas.

This paper begins with a look at both optimization modeling and discrete-event simulation modeling, and explores how they can most effectively work together to create additional analytic value. It then considers two examples of a combined optimization and simulation approach and discusses the resulting benefits.