Search Results for: Bacteria
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5,618 results for: Bacteria
- Tech
Sweet-toothed microbe tapped for power
Using a newly discovered bacterium that both frees electrons from sugars and injects those charges straight into electric circuits, scientists have created a fuel cell that converts carbohydrates to electricity with extraordinary efficiency.
By Peter Weiss - Materials Science
Nanowires grow on viral templates
Researchers are using viruses to assemble semiconducting nanowires—the building blocks of future electronic circuits.
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Smoking out microbes
The addictive compound nicotine kills bacteria, which may explain why smokers get lung disease.
By John Travis - Health & Medicine
McDonald’s Cutback in Antibiotics Use Could Reduce Drug-Resistant Bacteria
The fast-food chain McDonald’s announced on June 19 that it will stop its farms under contract from feeding chicken, cattle, and pigs certain antibiotics intended to accelerate the animals’ growth. That step might slow or reverse the rise of antibiotic-resistant bacteria that can infect people, scientists say. HAPPIER MEAL. Coming soon to a McDonald’s near […]
By Ben Harder - Earth
Suspended Drugs: Antibiotics fed to animals drift in air
Borne on dust floating in and around farm buildings, antibiotics given to animals may later be inhaled by people—with possibly detrimental health effects.
By Ben Harder - Earth
Strange crystal birth found in mine
Deep in a Wisconsin mine, researchers have uncovered a new way for crystals to grow in nature.
- Earth
When testosterone gets down and dirty
Testosterone excreted by livestock can pass through soils, which may explain new findings of fish-altering hormonal activity in water downstream of cattle feedlots.
By Janet Raloff - Chemistry
New solution for kitchen germs
Acidic electrolyzed water appears to kill foodborne germs more effectively than a bath of dilute bleach.
By Janet Raloff - Chemistry
Amending the Genetic Code: Yeast adds new amino acids to its proteins
Researchers have created yeast cells that add one of five unnatural amino acids to their natural 20-piece construction set.
- Planetary Science
Martian Methane: Carbon compound hints at life
The presence of methane in the Martian atmosphere spotlights the possibility that there might be primitive life on the Red Planet.
By Ron Cowen - Earth
Can Banking Carbon Cool the Greenhouse?
Stockpiling carbon dioxide in plants and soil may be effective only for the short term, if at all.
By Sid Perkins - Health & Medicine
Bacteria-Stocked Beverage Clears Pathogens from Nose
Dangerous bacteria often take refuge deep inside peoples noses, where they can remain dormant until they find an opportunity to invade other parts of the body. Perhaps the most important of these stowaway nasal microbes is Staphylococcus aureus, which can spread to wounds and surgical incisions and cause life-threatening blood infections. As many as a […]
By Ben Harder