Osmosis – the flow of a solvent across a semipermeable membrane from a region of lower to higher solute concentration – is a well-developed concept in physics and biophysics. The problem is that, even though the concept ...
General Physics
Apr 1, 2013
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In a laboratory study pairing food chemistry and cancer biology, scientists at the Johns Hopkins Kimmel Cancer Center tested the potentially harmful effect of foods and flavorings on the DNA of cells. They found that liquid ...
Biochemistry
Mar 27, 2013
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(Phys.org) —Viruses are biological pirates, invading cells and hijacking their machinery to reproduce and infect again. Research at Harvard Medical School is shedding new light on the battle line where viral and cell membranes ...
Cell & Microbiology
Mar 21, 2013
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Ben-Gurion University of the Negev (BGU) researchers, in collaboration with Teva Pharmaceutical Industries Ltd., have developed a promising drug candidate to treat psoriasis. The finding was reported in a new paper published ...
Biochemistry
Mar 20, 2013
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Computer simulations of water under extreme pressure are helping geochemists understand how carbon might be recycled from hundreds of miles below the Earth's surface. The work, by researchers at the University of California, ...
Earth Sciences
Mar 18, 2013
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(Phys.org) —ETH-Zurich researchers look several billion years back in time, when life on Earth was just beginning. In a laboratory experiment, they examined how a primitive protein was able to evolve. However, the journey ...
Cell & Microbiology
Mar 6, 2013
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(Phys.org)—Miniaturized laboratory-on-chip systems promise rapid, sensitive, and multiplexed detection of biological samples for medical diagnostics, drug discovery, and high-throughput screening. Using micro-fabrication ...
Nanophysics
Feb 12, 2013
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When proteins get "out of shape", the consequences can be fatal. They lose their function and in some cases form insoluble, toxic clumps that damage other cells and can cause severe diseases such as Alzheimer's or Parkinson's. ...
Biochemistry
Feb 11, 2013
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(Phys.org)—A new study by a team of chemists in Greece has added credence to a theory that suggests that humans differentiate smells by sensing molecular vibrations, rather than through simple binding to receptors. In their ...
(Phys.org)—Los Alamos researchers have developed a better technique for quick detection of live pathogens in the field. Identification of viable bacteria in a complex environment is scientifically challenging. Current detection ...
Biochemistry
Jan 25, 2013
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