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Latest Biophysics Stories

2012-01-12 21:31:48

University of Illinois researchers have shown that by tuning the properties of laser light illuminating arrays of metal nanoantennas, these nano-scale structures allow for dexterous optical tweezing as well as size-sorting of particles. "Nanoantennas are extremely popular right now because they are really good at concentrating optical fields in small areas,” explained Kimani Toussaint, Jr., an assistant professor of mechanical science and engineering at the University of Illinois at...

2011-12-07 14:30:26

Supercomputer simulations at the Department of Energy's Oak Ridge National Laboratory are giving scientists unprecedented access to a key class of proteins involved in drug detoxification. Jerome Baudry and Yinglong Miao, who are jointly affiliated with ORNL and the University of Tennessee, have performed simulations to observe the motions of water molecules in a class of enzymes called P450s. Certain types of P450 are responsible for processing a large fraction of drugs taken by humans....

2011-12-06 22:45:10

Model shows that signal clarity only improves if specific energy conditions are met Scientists have shown the energy conditions, under which a weak signal supplied to a physical system emerges as a stronger signal at the output thanks to the presence of random noise (a process known as stochastic resonance), in a paper that has just been published in EPJ B´. Stochastic resonance goes against the intuitive idea that where noise is present, the signal tends to fade. It occurs in...

Perfect Micro Rings Woven From Muscle Fibers
2011-11-16 03:39:27

[ Watch the Video ] A biological model system that dead-ends in an 'absorbing state' Supplied with sufficient energy, a freight train would ride the rails as far as they go. But nature also knows systems whose dynamics suddenly turn into a kind of endless loop. Like in a hamster wheel, a train caught up in such a system would continue running, but without moving forward. Scientists from the Cluster of Excellence Nanosystems Initiative Munich have now succeeded in building a simple model...

Cellular Industry Fighting New San Francisco Legislation
2011-10-05 04:32:33

The Cellular Telecommunications Industry Association (CTIA) filed a lawsuit on Friday to block the enforcement of a legislation in San Francisco requiring cell phones retailers to display a handset's specific absorption rate (SAR). "FCC's exclusive, congressionally derived authority" of radio frequency emissions from cell phones and other wireless devices. If not enjoined, the ordinance will "cause irreparable harm to plaintiff, its members, and the public," the lawsuit says. John...

Image 1 - Plasmonic Optical Tweezers Trap Tightly Without Overheating
2011-09-26 09:58:58

   Improved device eliminates a barrier to handling nanoscale particles Engineers at Harvard have created a device that may make it easier to isolate and study tiny particles such as viruses. Their plasmonic nanotweezers, revealed this month in Nature Communications, use light from a laser to trap nanoscale particles. The new device creates strong forces more efficiently than traditional optical tweezers and eliminates a problem that caused earlier setups to overheat....

2011-06-08 01:33:07

In work published in the June 2011 issue of Experimental Biology and Medicine, Kolossov, Spring and their co-investigators - a multidisciplinary team within the Institute for Genomic Biology at the University of Illinois - have transferred the concept of redox-sensitive Green Fluorescent Proteins (GFPs) to a quantitative Förster resonance energy transfer (FRET) imaging platform. For the FRET-based sensors, a change in redox induces a conformational change in a redox-sensitive switch that...

2011-05-26 08:00:00

ROCKVILLE, Md., May 26, 2011 /PRNewswire-USNewswire/ -- The American Society for Biochemistry and Molecular Biology has elected Jeremy M. Berg, Ph.D., as the next president of the nonprofit. His term begins July 1, 2012. (Logo: http://photos.prnewswire.com/prnh/20110526/DC08945LOGO) Berg has directed the National Institute of General Medical Sciences at the National Institutes of Health since November 2003. He is leaving that position in June to join the University of Pittsburgh....

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2011-05-24 06:21:46

Sequencing DNA base pairs "“ the individual molecules that make up DNA "“ is key for medical researchers working toward personalized medicine. Being able to isolate, study and sequence these DNA molecules would allow scientists to tailor diagnostic testing, therapies and treatments based on each patient's individual genetic makeup. But being able to isolate individual molecules like DNA base pairs, which are just two nanometers across "“ or about 1/50,000th the diameter of a...


Latest Biophysics Reference Libraries

Biophysical Journal
2012-05-28 10:08:02

The Biophysical Journal is a peer-reviewed scientific journal published biweekly by Cell Press on behalf of the Biophysical Society. It was established in 1960. The editor-in-chief is Edward Egelman. It covers all aspects of biophysics.  It is the leading international journal for original research in molecular, cellular, and system biophysics. Modern biophysics is a broad and rapidly advancing field encompassing the study of biological structures with a focus on mechanisms at the...

European Biophysics Journal
2012-04-25 14:39:00

The European Biophysics Journal is a scientific journal published by Springer Science+Business Media on behalf of the European Biophysical Societies Association. Published works occur in the field of biophysics (the study of biological phenomena using physical methods and concepts). It publishes original papers, reviews and letters. The editor-in-chief is Anthony Watts of University of Oxford. Areas of research that are frequently published in the journal include: structure and dynamics of...

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Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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