News tagged with chemical toxin
New type of biosensor is fast, super-sensitive
(Phys.org) -- A whole new class of biosensor that can detect exceptionally small traces of contaminants in liquids in just 40 minutes has been developed by a UNSW-led team of researchers.
Chemistry / Analytical Chemistry
21 hours ago |
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Bats: What sounds good doesn't always taste good
Bats use a combination of cues in their hunting sequence - capture, handling and consumption - to decide which prey to attack, catch and consume and which ones they are better off leaving alone or dropping ...
May 21, 2012 |
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Study finds how bacteria resist a 'Trojan horse' antibiotic
A new study describes how bacteria use a previously unknown means to defeat an antibiotic. The researchers found that the bacteria have modified a common "housekeeping" enzyme in a way that enables the enzyme ...
Mar 19, 2012 |
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An enzyme in fish can demonstrate environmental toxins
The level of the enzyme carbonyl reductase (CBR) is elevated in the livers of fish that have been exposed to cleaned wastewater. Scientists at the University of Gothenburg can show that CBR has properties that may make it ...
Nov 08, 2011 |
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Polar bears ill from accumulated environmental toxins
New doctoral thesis documents that industrial chemicals are transported from the industrialized world to the Arctic via air and sea currents. Here, the cocktail of environmental toxins is absorbed by the sea's food chains ...
Oct 13, 2011 |
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Molecular study shows unexpected effects of toxin
Scientists from the University of Birmingham studying the effects of the widely-used pesticide fenitrothion, have discovered unexpected cell damage in a common freshwater fish, roach, exposed to the toxin.
Aug 08, 2011 |
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Venom of marine snails provide new drugs
Baldomero Olivera studies chemical compounds found in the venoms of marine cone snails, a potential source of powerful, yet safe and effective drugs. He will discuss the development of Prialt - an FDA-approved drug for intractable, ...
Feb 17, 2011 |
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Key player in detoxification pathway isolated after decades of searching
(PhysOrg.com) -- Chemical reactions are happening all over the place all the time -- on the sun, on the Earth and in our bodies. In many cases, enzymes help make these reactions occur. One family of enzymes, ...
Nov 12, 2010 |
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Artificial enzyme removes natural poison
For the first time ever, a completely man-made chemical enzyme has been successfully used to neutralise a toxin found naturally in fruits and vegetables.
Aug 26, 2010 |
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Study IDs first molecules that protect cells against deadly ricin poison
The results of a high-throughput screen of thousands of chemicals in search of agents that could protect cells, and ultimately people, against the deadly ricin poison has turned up two contenders. Even better, the compounds ...
Apr 15, 2010 |
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Multifunctional polymer neutralizes both biological and chemical weapons
In an ongoing effort to mirror the ability of biological tissues to respond rapidly and appropriately to changing environments, scientists from the McGowan Institute for Regenerative Medicine have synthesized a single, multifunctional ...
Mar 18, 2010 |
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Quantum dots spotlight DNA-repair proteins in motion
Repair proteins appear to efficiently scan the genome for errors by jumping like fleas between DNA molecules, sliding along the strands, and perhaps pausing at suspicious spots, say researchers at the University of Pittsburgh, ...
Mar 11, 2010 |
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What should goldenrod do to avoid an insect attack? Duck
A field of golden-flowered stems swaying in an autumn breeze may evoke a peaceful scene. But this tranquility belies serious battles between natural enemies that took place in the spring. In particular, young ...
Mar 08, 2010 |
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Nanoparticles used in common household items caused genetic damage in mice
Titanium dioxide (TiO2) nanoparticles, found in everything from cosmetics to sunscreen to paint to vitamins, caused systemic genetic damage in mice, according to a comprehensive study conducted by researchers at UCLA's Jonsson ...
Nanotechnology / Bio & Medicine
Nov 16, 2009 |
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Electronic nose sniffs out toxins
Imagine a polka-dotted postage stamp-sized sensor that can sniff out some known poisonous gases and toxins and show the results simply by changing colors.
Sep 13, 2009 |
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