Las marcas como Juul liberan una forma de nicotina menos agresiva al inhalarse que la nicotina en forma básica.

Brands like Juul deliver a form of nicotine that is less harsh to inhale than free-base nicotine

Akamptisomers result from bond-angle inversion

The start-up wants to develop treatments based on two kinds of bacteria linked to the antiseizure effects of the ketogenic diet

Such screens could yield protein drugs with advantages over natural ones

Products made in volumes between 1 and 100 metric tons must be registered by May 31

Prime minister wants to maintain full participation in Horizon Europe

Move will leave agency with 3 of 5 board members

Funds from the Gates Foundation and U.K. government will help address antimicrobial resistance in low- and middle-income countries

Agency urges the chemical industry to better prepare for extreme weather

Updated following the West, Texas, fertilizer explosion, rule is intended to prevent incidents at facilities handling large amounts of hazardous materials

Traces of lead pinpoint economic activity, but doubts about contamination have been raised

Researchers are simultaneously shrinking mass specs and broadening their tandem capabilities

Decades in the making, miniature mass spectrometers still face technical hurdles to wider commercial adoption

The science enables and enhances the all-encompassing live music experience. 

San Jose State’s Claire Komives is testing an antivenom inspired by opossum biochemistry against various snake species to prevent deaths in the developing world

A spot shortage of the analytical sample holder affects some scientists

Dynamic boron-oxygen networks are key to the new material’s unusual properties

National Academies committee calls for more emphasis on career counseling, teaching, and mentoring for grad students

The first goal is to thwart the outbreak, but researchers also hope for new insights into combating the virus

With so many ingredients on hand, can the oncology community figure out how to sensibly and efficiently combine checkpoint inhibitors with other drugs?

Emmanuelle Charpentier, Jennifer Doudna, and Virginijus Siksnys win Kavli Prize in nanoscience, renewing Nobel Prize speculation and resurfacing a forgotten name in the CRISPR patent battle

The start-up wants to develop treatments based on two kinds of bacteria linked to the antiseizure effects of the ketogenic diet

Agency urges the chemical industry to better prepare for extreme weather

This chemist and military academy grad found a varied career in national security

Surprised by proposal, scientific experts to ask agency chief to wait for their feedback before finalizing rule

New uses would be restricted, but industry’s current use of carcinogenic mineral can continue

Sources of pollution differ but models predict more deaths in rural areas because of higher populations there

Solution containing lithium salt-solvent clusters makes lithium metal batteries safer and long-lasting

As the military looks to phase out toxic TNT, chemists have created a new nitrogen-packed molecule with promising properties

Combination of microfluidics and a nanosensor achieves label-free detection of cytokines from individual cells

Cationic molecule helps bleach cotton faster with less energy