Chemistry
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We summarize the week's scientific breakthroughs every Thursday.
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Health & MedicineMore troubling news about BPA
Animal studies link bisphenol A — a building block of hard, clear plastics that taints many foods — with new adverse health effects.
By Janet Raloff -
ChemistryProtein caught in the act
Researchers have developed a new way to see where the molecules are active.
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ChemistryDeadly mushroom toxin exposed
Researchers have isolated and identified a muscle-destroying compound in some mushrooms.
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ChemistryNot your grandpa’s smoke signals
A fuse dotted with chemicals offers a new way to code messages.
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ChemistryBeryllium-beryllium bond illuminated
Scientists study the partnership between two atoms of beryllium, which chemical theory says shouldn’t exist.
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ChemistryBPA: On the way out? Sort of
Half-hearted bans won't really protect babies, much less the rest of us.
By Janet Raloff -
PsychologySchool-age lead exposures most harmful to IQ
New studies find lead exposure has greater potency in school-age children than in infants and toddlers, including effects on brain volume.
By Janet Raloff -
ChemistryHow RNA got started
Scientists identify chemical reactions that could be responsible for the origin of life.
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ChemistryNonstick chemical pollutes water at notable levels
Residues of nonstick chemicals — from unknown sources — appear to be approaching concentrations associated with adverse effects in laboratory animals.
By Janet Raloff -
PhysicsMolecule turns red at breaking point
Materials made with a color-changing molecule may offer a red signal when under stress.
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LifeFunction for green fluorescent protein
Scientists find that the glowing molecule also passes electrons, offering a new clue about the natural function of a protein that's become ubiquitous in molecular biology.
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ChemistryYeast bred to bear artificial vanilla
Researchers have co-opted fungi to produce the flavor more efficiently.