Chemistry
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Materials ScienceLight could make some hospital surfaces deadly to germs
A new surfacing material can disinfect itself. Room lighting turns on this germ-killing property, which could make the material attractive to hospitals.
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ChemistryCool Jobs: Diving for new medicines
Scientists mix research with underwater adventure as they search the oceans for new chemicals to treat infections, cancer and more.
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AnimalsNature shows how dragons might breathe fire
Fire-breathing dragons can’t live anywhere outside of a book or TV. But nature provides some guidance as to how they might get their flames. If they existed, anyway.
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ChemistryMoisture unmasks camouflaged message
Researchers have developed a new type of chemical that will mask some hidden message — until you add water.
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ChemistryHuman waste could power plastic-making in space
Someday recycled urine and exhaled breath could feed specially engineered yeast to make plastics and other useful chemicals on long space missions.
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ChemistryOlympic ski racers use chemistry to enhance their performance
The chemistry of ski wax plays an important role in whether a skier wins or loses. They need a wax that helps them slip speedily downhill yet grip well uphill.
By Eric Niiler -
ChemistryChemists look to mine silver from laundry wastewater
Recovering silver from wastewater could prevent the metal from ending up in lakes, rivers and the ocean, where it could poison wildlife.
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PlantsIncreasingly, chocolate-makers turn to science
Chocolate is delicious and may even have health benefits. To make sure there’s enough to go around, scientists are growing heartier cacao trees.
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Health & MedicineJanet’s chocolate mousse pie
The top two ingredients — dark chocolate and tofu — both have a reputation for being healthy. The good news for those who don’t like tofu: You can’t taste it in this pie. It just tastes like a very rich, thick chocolate mousse.
By Janet Raloff -
ChemistryScientists Say: Salt
Salts in chemistry are compounds made when a positively charged acid is combined with a negatively charged base. Table salt is one example.
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ChemistryChanging toothpastes? Change your toothbrush
Scientists have found that toothbrush bristles absorb triclosan, then release the potentially toxic chemical when users switch toothpastes.
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ChemistryScientists Say: Amino Acid
Amino acids are small molecules that make up proteins and serve as messengers in our cells.