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• Long Predicted Atomic Collapse State Observed in Graphene
• Researchers Find Molecular Key to Exhaustion Following Sleep Deprivation
• Green tea extract interferes with the formation of amyloid plaques in Alzheimer's disease
• ‘Ninja parasites’ elude immune response through molecular mimicry
• Nanoparticles loaded with bee venom kill HIV

Long Predicted Atomic Collapse State Observed in Graphene Posted: 08 Mar 2013 10:08 AM PST The first experimental observation of a quantum mechanical phenomenon that was predicted nearly 70 years ago holds important implications for the future of graphene-based electronic devices. Working with microscopic artificial atomic nuclei fabricated on graphene, a collaboration of researchers led by scientists with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley have imaged the “atomic collapse” states theorized to occur around super-large atomic nuclei. read more

Researchers Find Molecular Key to Exhaustion Following Sleep Deprivation Posted: 08 Mar 2013 08:27 AM PST  It happens to everyone: You stay up late one night to finish an assignment, and the next day, you’re exhausted. Humans aren’t unique in that; all animals need sleep, and if they don’t get it, they must make it up. David Raizen, MD, PhD, assistant professor of Neurology in the Perelman School of Medicine at the University of Pennsylvania, and his colleagues report in Current Biology that even in Caenorhabditis elegans, a tiny nematode worm that feeds on bacteria, loss of sleep is "stressful." read more

Green tea extract interferes with the formation of amyloid plaques in Alzheimer's disease Posted: 08 Mar 2013 08:17 AM PST Researchers at the University of Michigan have found a new potential benefit of a molecule in green tea: preventing the misfolding of specific proteins in the brain. The aggregation of these proteins, called metal-associated amyloids, is associated with Alzheimer's disease and other neurodegenerative conditions. read more

‘Ninja parasites’ elude immune response through molecular mimicry Posted: 08 Mar 2013 08:10 AM PST In feudal-age Japan, cunning, unorthodox mercenaries known as ninjas were notorious for using disguise, deception, and stealth to infiltrate enemy fortifications. In the world of modern parasites, certain organisms — dubbed "ninja parasites" by Professor Timothy Yoshino — use similar tactics, in a biological and chemical sense, to trick their way past the immune systems of their hosts. read more

Nanoparticles loaded with bee venom kill HIV Posted: 08 Mar 2013 07:28 AM PST Nanoparticles carrying a toxin found in bee venom can destroy human immunodeficiency virus (HIV) while leaving surrounding cells unharmed, researchers at Washington University School of Medicine in St. Louis have shown. The finding is an important step toward developing a vaginal gel that may prevent the spread of HIV, the virus that causes AIDS. “Our hope is that in places where HIV is running rampant, people could use this gel as a preventive measure to stop the initial infection,” says Joshua L. Hood, MD, PhD, a research instructor in medicine. read more

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