Chemistry
Scientists Say: Pigment
From fruits to fur to fine art, many materials get their colors from compounds called pigments.
Chemistry
More Stories in Chemistry
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Materials ScienceLet’s learn about diamond
Diamond is born under extreme heat and pressure inside Earth and elsewhere in the universe.
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ChemistryReusable plastic bottles release hundreds of pollutants into water
Data show the plastic ends up tainting drinking water. For now, scientists don’t know what health risks downing these pollutants might pose.
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ChemistryLet’s learn about cellulose
The world’s most abundant natural polymer is finding all kinds of new uses, in everything from ice cream to construction.
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Health & MedicineLike bloodhounds, worms are sniffing out human cancers
Scents emitted by diseased cells may usher in a new era of safe, low-cost screening tests for cancer and other illnesses.
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ChemistryCellulose may keep ice cream from turning gritty in your freezer
Adding nanocrystals extracted from wood avoids the growth of ice crystals, keeping your treat smooth and creamy.
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EnvironmentPonds made to control floods can spew climate-warming gases, study finds
Younger stormwater ponds can release more carbon in gases than they absorb, a study finds. That could aggravate global warming.
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Materials ScienceNew cloth cools you when you’re hot, warms you when you’re cold
Scientists 3-D printed the new fabric, which has even more tricks up its sleeve — such as conducting electricity and resisting radio waves.
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AnimalsThe scent of queen ‘murder hornets’ can lure males into traps
Traps baited with compounds found in the mating pheromone of hornet queens attracted thousands of males.
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ChemistryScientists Say: Inorganic
Inorganic molecules include salts, minerals and other compounds that lack organics’ carbon-hydrogen bonds.