News
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TechMicromachine runs on nuclear power
Radioactivity creates electric fields that wiggle a tiny lever.
By Peter Weiss -
ChemistryDon’t eat the pepper-flavored paint
A derivative of the spicy chemical in chili peppers could find its way into a variety of products, including veterinary sutures and fiber optic cables.
By Corinna Wu -
ChemistryGlowing bacteria gobble gook in soil
A genetically engineered bacterium lights up as it breaks down organic contaminants in soil.
By Corinna Wu -
Nogo makes cord regrowth a no go
Researchers have identified the gene for a protein that inhibits the regrowth of nerves in the spinal cord.
By John Travis -
Protein may help the eyes tell time
A human version of melanopsin, originally found in the skin, eyes, and brains of frogs, has been discovered in the inner retina and may be the long-sought photoreceptor for the human biological clock.