News tagged with free radical
Shining light on cells' inner workings
(Phys.org) -- Lanrong Bi and Nazmiye Yapici are shining new light on the hidden processes within cells. For their groundbreaking research, Bi, an assistant professor of chemistry at Michigan Technological ...
May 16, 2012 |
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Sunscreen ingredient may pose skin cancer risk, researchers find
(Phys.org) -- As vacationers prepare to spend time outdoors this summer, many of them will pack plenty of sunscreen in hopes it will protect their bodies from overexposure, and possibly from skin cancer. But researchers at ...
Nanotechnology / Nanomaterials
May 08, 2012 |
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Avocado oil: The 'olive oil of the Americas'?
Atmospheric oxygen facilitated the evolution and complexity of terrestrial organisms, including human beings, because it allowed nutrients to be used more efficiently by those organisms, which in turn were able to generate ...
Apr 23, 2012 |
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Squeezing polymers produces chemical energy but raises doubts about implant safety
A polymer is a mesh of chains, which slowly break over time due to the pressure from ordinary wear and tear. When a polymer is squeezed, the pressure breaks chemical bonds and produces free radicals: ions with unpaired electrons, ...
Mar 02, 2012 |
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Toxins from diseased brain cells make diseases of the brain even worse
Sometimes our immune defence attacks our own cells. When this happens in the brain we see neurodegenerative diseases such as dementia, Alzheimer's and Parkinson's disease. But if the the immune defence is inhibited, the results ...
Feb 22, 2012 |
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Scientists reveal how females store sperm for decades
(PhysOrg.com) -- Scientists have discovered that all sorts of females – from birds to reptiles to insects – have a nifty trick to prolong the lifespan of sperm, letting them store it for weeks, months ...
Jan 26, 2012 |
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Study presents new insight into plant immunity
Researchers have identified an important cog in the molecular machinery of plant immunity - a discovery that could help crop breeders produce disease-resistant varieties to help ensure future food security. There may also ...
Oct 02, 2011 |
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Cellular metabolism self-adapts to protect against free radicals
Oxygen-consuming organisms obtain energy through cellular respiration, which is the transformation of carbohydrates and oxygen into carbon dioxide and water. This process also produces toxic oxygen radicals which must be ...
Sep 07, 2011 |
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Scientifically taking the guilt out of guilty pleasures
Red wine and chocolate are part of the working week for Australian Institute for Bioengineering and Nanotechnology researcher Dr. Aaron Micallef.
Aug 25, 2011 |
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Technology tethers free radicals
The science world is abuzz with news of a new platform technology developed by physicists at the University of Sydney - technology that can be used in areas as diverse as disease detection through to biofuel production.
Aug 17, 2011 |
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Certain bacteria render mosquitoes resistant to deadly malaria parasite
cientists have identified a class of naturally occurring bacteria that can strongly inhibit malaria-causing parasites in Anopheles mosquitoes, a finding that could have implications for efforts to control malaria. The study, ...
May 12, 2011 |
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Safeguarding genome integrity through extraordinary DNA repair
(PhysOrg.com) -- DNA is under constant attack, from internal factors like free radicals and external ones like ionizing radiation. About 10 double-strand breaks – the kind that snap both backbones of ...
Apr 19, 2011 |
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Metabolic abnormalities in obese teens may relate to poor diets
Obese teens may feel healthy, but blood tests show they have inflammation, insulin resistance, and high homocysteine levels , researchers report at the American Heart Association's Nutrition, Physical Activity and Metabolism/Cardiovascular ...
Mar 22, 2011 |
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Antioxidants in pregnancy prevent obesity in animal offspring
New biological research may be relevant to the effects of a mother's high-fat diet during pregnancy on the development of obesity in her children.
Mar 14, 2011 |
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High levels of 'good' cholesterol may cut bowel cancer risk
High levels of "good" (high density lipoprotein) HDL cholesterol seem to cut the risk of bowel cancer, suggests research published online in Gut.
Mar 08, 2011 |
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