Chemistry
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ChemistryHow to make tiny metal snowflakes
In a pool of molten gallium, researchers grew symmetrical, hexagonal zinc nanostructures that resemble natural snowflakes.
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Health & Medicine‘Forever chemicals’ may pose a bigger risk to our health than scientists thought
PFAS are linked to obesity, cancers and more. Growing evidence of the chemicals’ risks has prompted new guidance for safe drinking water and consumer testing.
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Health & MedicineLouis Pasteur’s devotion to truth transformed what we know about health and disease
Two centuries after his birth, Louis Pasteur's work on pasteurization, germ theory and vaccines is as relevant as ever.
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EarthCatastrophic solar storms may not explain shadows of radiation in trees
Tree rings record six known Miyake events — spikes in global radiation levels in the past. The sun, as long presumed, might not be the sole culprit.
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ChemistryMixing gold ions into whiskey can reveal its flavor
By changing the spirit’s color, the formation of gold nanoparticles can reveal how much flavor a whiskey has absorbed from its wood cask.
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ChemistryA way to snap molecules together like Lego wins 2022 chemistry Nobel
Click chemistry and bioorthogonal chemistry allow scientists to build complex molecules in the lab and in living cells.
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ChemistryJosep Cornella breaks boundaries to make new and better catalysts
Josep Cornella reinvents chemical reactions essential for agriculture and the pharmaceutical industry.
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ChemistryWhy once-gold ceilings in Spain’s Alhambra palace have purple stains
Moisture infiltrated flawed gilding at the iconic palace, leading to corrosion that deposited gold nanoparticles of the right size to appear purple.
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ClimateHow to make recyclable plastics out of CO2 to slow climate change
Companies are turning atmospheric CO2 from smokestacks and landfills into plastics to shrink their carbon footprint.
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ClimateA carbon footprint life cycle assessment can cut down on greenwashing
As companies try to reduce their carbon footprint, many are doing life cycle assessments to quantify the full carbon cost of their products.
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EnvironmentCommon, cheap ingredients can break down some ‘forever chemicals’
Forever chemicals, or PFAS, are harmful compounds that are very difficult to degrade. But some are no match for lye and dimethyl sulfoxide.
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ChemistryThese researchers are unlocking Renaissance beauty secrets
An art historian has teamed up with chemists to uncover the science behind cosmetics used around 500 years ago.