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El aumento de las emisiones de CFC amenaza la recuperación de la capa de ozono

El triclorofluorometano probablemente se origine en fábricas del este de Asia




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Small molecule could help modulate the microbiome

An inhibitor of starch-digesting enzymes stunts the growth of certain gut bacteria




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James D. Crum




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Enerkem gets green light for Spanish waste-to-methanol plant




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The good times keep rolling in pharmaceutical chemicals

Exhibitors at CPhI North America report another year of record growth and investment




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Merck’s Ebola vaccine arrives in Congo




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Ice cores may have tracked ancient Rome’s boom and bust

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




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Enzyme catalyzes cross-membrane reaction

Hydrophilic and hydrophobic molecules don’t have to leave their natural environments to react




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Polymer solar cell hopes to claim new record

Engineering two organic molecules for better compatibility boosts the conversion efficiency of polymer solar cells to 14.2%




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Artificial metalloenzyme flips switch in cells

Cell-penetrating assembly uncages hormone, turning on gene circuit




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Chemists claim they’ve defined the first new class of stereoisomers in 50 years

Akamptisomers result from bond-angle inversion




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Chemical firms rush to meet final REACH regulation deadline

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




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U.S. EPA proposes final pollution cleanup plan for American Cyanamid site

Goal is getting Pfizer-owned land in New Jersey back into use




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How chemistry can help meet the UN’s sustainable development goals




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Project SEED scholar Michelle Melo

Passionate about forensic science, this chemist got the job she always wanted




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SCI chooses Minor and Swier for medals




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Ice cores may have tracked ancient Rome’s boom and bust

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




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Cobalt coaxes enamides into asymmetric hydrogenation

Chemists use the reaction to develop a greener route to epilepsy drug




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How an opossum protein may lead to a broad-spectrum snakebite treatment

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




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Meet the Janelia chemist crafting glowing molecular tools for neuroscientists

Luke Lavis’s lab teaches old dyes new tricks at the HHMI campus




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Why some cuvettes are difficult to come by

A spot shortage of the analytical sample holder affects some scientists




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Discovery of new poppy enzyme might help improve yeast-based opiate synthesis

Adding enzyme to engineered yeast boosts production of thebaine, a key morphine intermediate




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Europe to ban some single-use plastics

New obligations for industry as the region and other areas target the causes of marine litter




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Methane ice dunes spotted on Pluto

Nitrogen sublimation and gentle breezes may form the hills




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Deployment of Merck’s experimental Ebola vaccine well under way in the Democratic Republic of Congo

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




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Experimental cancer cell therapies have nearly doubled in six months

A new report from the Cancer Research Institute highlights the U.S. and China as cell therapy leaders




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Mining archived data for emerging pollutants

Data sharing project lays groundwork for contaminant “early warning network”




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CAS names its 2018 CAS SciFinder Future Leaders




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Invista to upgrade Texas nylon intermediate facility




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The mega-agency




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U.S. Congress targets requirements for fluorochemicals in firefighting foams at airports




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U.S. EPA proposes final pollution cleanup plan for American Cyanamid site

Goal is getting Pfizer-owned land in New Jersey back into use




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PerkinElmer acquires Chinese instrument maker




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Cortexyme raises $76 million to test bacterial protease inhibitor in Alzheimer’s




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Conservators consult Forbes Pigment Collection to solve artwork mysteries

Library of 2,500 samples offers clues about hues, both old and new




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Fire-retardant electrolyte could usher in practical lithium metal batteries

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




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Giving enzymes floppy surfaces can enhance their activity

Added surface glycine residues cause partial unfolding that adapts enyzyme to low temperatures




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At BIO convention, business boomed, and drug pricing loomed

Diversity, drug prices, and 'right to try' permeated conversation at the drug industry meeting




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China slows solar power development

Solar material suppliers scramble to assess impact on market




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To shrink electronics further, innovative chemical deposition methods may save the day

Researchers experiment with area-selective atomic layer deposition to precisely place layers of conducting and insulating materials within circuits




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Division of Polymer Chemistry seeks nominations for awards




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Dennis Stuehr receives Morley Medal




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Roche ends development of SMA drug olesoxime




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Shining the light on outstanding contributions by women chemists




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Replacing methylene chloride in paint strippers

Questions remain about the safety and effectiveness of alternative solvents




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Spectroscopy method measures enantiomeric excess on the fly

Combining vibrational circular dichroism and infrared spectroscopy yields real-time probe of asymmetric catalytic reactions




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Fire-retardant electrolyte could usher in practical lithium-metal batteries

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




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Social media 101 for scientists

It’s never too late to start getting connected online




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Sexual harassment pervasive in science, National Academies study says

Cultural change needed to prevent injury to female faculty, students




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Periodic Graphics: The chemistry of slime

Chemical educator and Compound Interest blogger Andy Brunning wrings all the molecular details out of the popular goo