(Phys.org)—In the 1960s, Nobel laureate Pierre-Gilles de Gennes postulated that someday researchers could test his theories of polymer networks by observing single molecules. Researchers at Brown observed single molecules ...
Bio & Medicine
Jan 8, 2013
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Every time a human or bacterial cell divides it first must copy its DNA. Specialized proteins unzip the intertwined DNA strands while others follow and build new strands, using the originals as templates. Whenever these proteins ...
Cell & Microbiology
Dec 13, 2012
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Two major barriers to the advancement of DNA nanotechnology beyond the research lab have been knocked down. This emerging technology employs DNA as a programmable building material for self-assembled, nanometer-scale structures. ...
Bio & Medicine
Dec 13, 2012
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For much of her professional life, Dr. Susan Rosenberg has studied the puzzling response of bacteria to stress and the mutations that result. In the current issue of the journal Science, she puts together the pieces of that ...
Cell & Microbiology
Dec 6, 2012
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(Phys.org)—A research team in Italy has succeeded in capturing a high contrast image of a band of DNA fiber – the closest anyone has ever come to taking a photograph of a single strand of DNA. The team has outlined the ...
DNA lesions are really common —about one million individual molecular lesions per cell per day— because its long strands usually have one missing base or are damaged. These lesions can stall the DNA replication process, ...
Cell & Microbiology
Dec 3, 2012
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Certain mutated cells keep trying to replicate their DNA—with disastrous results—even after medications rob them of the raw materials to do so, according to new research from USC.
Cell & Microbiology
Nov 19, 2012
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Carrying the genetic code is already a vital job, but DNA is also proving to be a useful tool in nanotechnology applications. Since the DNA molecule is a versatile building block, it can be used to construct molecular devices. ...
Biochemistry
Nov 16, 2012
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For the first time, researchers at the University of California, Davis, have watched single strands of DNA being prepped for repair. The research, published this week in the journal Nature, has implications for understanding ...
Cell & Microbiology
Oct 29, 2012
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(Phys.org)—Theoretical physicists like to play with very unconventional toys. Manoel Manghi from Toulouse University in France and his colleagues have adopted a seemingly playful approach to examining what happens to a ...
Cell & Microbiology
Oct 25, 2012
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