Nitric oxide (NO) is a versatile free radical that plays central roles in the environment as well as living organisms. At low concentration in the human body, for example, NO protects organs against pathogens by acting as ...
Biochemistry
Jun 8, 2012
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(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 University, and ...
Biochemistry
May 16, 2012
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(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 ...
Nanomaterials
May 8, 2012
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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 ...
Biochemistry
Apr 23, 2012
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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, ...
Polymers
Mar 2, 2012
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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 ...
Biochemistry
Feb 22, 2012
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(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 or even years ...
Plants & Animals
Jan 26, 2012
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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 ...
Biotechnology
Oct 2, 2011
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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 ...
Cell & Microbiology
Sep 7, 2011
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Red wine and chocolate are part of the working week for Australian Institute for Bioengineering and Nanotechnology researcher Dr. Aaron Micallef.
Other
Aug 25, 2011
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