Nano-sized fluorescent particles known as quantum dots have shown promise as powerful imaging agents capable of detecting a wide range of diseases, but these nanoparticles are usually made with toxic metals such as cadmium. ...
Bio & Medicine
Jan 19, 2011
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Two essential genes that control the accumulation and detoxification of arsenic in plant cells have been identified. This discovery is the fruit of an international collaboration involving laboratories in Switzerland, South ...
Biotechnology
Nov 16, 2010
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In Hungary, as in many parts of the world, toxic bauxite sludges created during aluminium production are stored in the open air. Prolonged rainfall probably pushed the collection pond to its limits. The dam failure has now ...
Environment
Oct 13, 2010
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(PhysOrg.com) -- Control over material properties would reduce the amount of platinum needed.
Nanomaterials
Sep 27, 2010
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An unusual wildflower that accumulates metals in its leaves has been found to use them as a kind of 'armour' against bacterial infection.
Plants & Animals
Sep 10, 2010
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(AP) -- The mile-wide gash grows almost daily with each dynamite blast, slowly devouring this bleak provincial capital high in the Andes.
Environment
Apr 18, 2010
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An asteroid strike may not only account for the demise of ocean and land life 65 million years ago, but the fireball's path and the resulting dust, darkness and toxic metal contamination may explain the geographic unevenness ...
Earth Sciences
Mar 1, 2010
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(PhysOrg.com) -- For the first time, the widely used molecular synthesis technique known as click chemistry has been safely applied to a living organism. A team of Berkeley Lab and UC Berkeley researchers has developed a ...
Biochemistry
Jan 19, 2010
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A new study on the surface chemistry of silver-colored, mercury-based dental fillings suggests that the surface forms of mercury may be less toxic than previously thought. It appears online in ACS' journal Chemical Research ...
Biochemistry
Dec 9, 2009
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(PhysOrg.com) -- Amid the on-going controversy over the safety of mercury-containing dental fillings, a University of Saskatchewan research team has shed new light on how the chemical forms of mercury at the surface of fillings ...
Analytical Chemistry
Nov 11, 2009
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