Collaborators from Mayo-Illinois Alliance for Technology Based Healthcare have developed a new, single molecule test for detecting methylated DNA. Methylation—the addition of a methyl group of molecules to a DNA strand—is ...
Bio & Medicine
Mar 14, 2013
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(Phys.org) —The founding father of DNA nanotechnology – a field that forges tiny geometric building blocks from DNA strands – recently came to SLAC to get a new view of these creations using powerful X-ray laser pulses.
Bio & Medicine
Mar 12, 2013
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A team of USC scientists has identified a protein that can change DNA topology, making DNA twist up into a so-called "supercoil."
Cell & Microbiology
Mar 11, 2013
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A protein known for turning on genes to help cells survive low-oxygen conditions also slows down the copying of new DNA strands, thus shutting down the growth of new cells, Johns Hopkins researchers report. Their discovery ...
Cell & Microbiology
Feb 22, 2013
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Infectious diseases such as malaria and syphilis can be diagnosed rapidly and reliably in the field by using a simple test developed by Canadian scientists. The test is based on the use of DNAzymes and gold nanoparticles. ...
Bio & Medicine
Feb 12, 2013
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In a project that began with the retinal cells of nocturnal animals and has led to fundamental insights into the organization of genomic DNA, researchers from Ludwig-Maximilians-Universitaet (LMU) in Munich show how the nuclear ...
Cell & Microbiology
Feb 1, 2013
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(Phys.org)—A team of researchers at the National Institute of Standards and Technology (NIST) has shown that by bringing gold nanoparticles close to the dots and using a DNA template to control the distances, the intensity ...
Nanophysics
Jan 25, 2013
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(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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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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