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Proofreading and error-correction in nanomaterials inspired by nature
Mimicking nature, a procedure developed by researchers at the University of Illinois at Urbana-Champaign can find and correct defects in self-assembled nanomaterials. view more (2005-10-19)
'Pinball protons' created by ultraviolet rays and other causes can lead to DNA damage
Researchers have known for years that damaged DNA can lead to human diseases such as cancer, but how damage occurs-and what causes it-has remained less clear. view more (2006-05-18)
Detection of DNA on nanotubes offers new sensing, sequencing technologies
Researchers at the University of Illinois at Urbana-Champaign who recently reported that DNA-wrapped carbon nanotubes could serve as sensors in living cells now say the tiny tubes can be used to target specific DNA sequences. view more (2006-02-22)
NYU chemists create 'nanorobotic' arm to operate within DNA sequence
New York University chemistry professor Nadrian C. Seeman and his graduate student Baoquan Ding have developed a DNA cassette through which a nanomechanical device can be inserted and function within a DNA array, allowing for the motion of a nanorobotic arm. view more (2006-12-08)
EU research suggests that PCBs damage sperm - but finds no dramatic effect on male fertility
Research by an EU-supported international team of scientists has shown that polychlorinated biphenyls (PCBs)[1]-synthetic organic chemicals found widely in the environment and absorbed in the diet - may damage sperm. view more (2005-10-13)
New telomere discovery could help explain why cancer cells never stop dividing
A group working at the Swiss Institute for Experimental Cancer Research (ISREC) in collaboration with the University of Pavia has discovered that telomeres, the repeated DNA-protein complexes at the end of chromosomes that progressively shorten every time a cell divides, also contain RNA. view more (2007-10-05)
Study links high levels of nitric oxide to infertility and sperm DNA damage
Iranian scientists have linked a chemical that plays an essential role in many bodily functions to sperm DNA damage and male infertility. view more (2006-06-19)
Making memories that last a lifetime
Neurobiologists have discovered a mechanism by which the constantly changing brain retains memories—from that dog bite to that first kiss. They have found that the brain co-opts the same machinery by which cells stably alter their genes to specialize during embryonic development. view more (2007-03-15)
Evolutionary scrap-heap challenge: Antifreeze fish make sense out of junk DNA
Scientists at the University of Illinois have discovered an antifreeze-protein gene in cod that has evolved from non-coding or 'junk' DNA. view more (2006-04-04)
New forensic science will identify Brazil's "disappeared"
Collaboration between forensic scientists from Sheffield and Brazil using a new DNA extraction technique has identified two homicide victims whose skeletonised bodies were found dumped in sugar cane plantations near S'£o Paulo in the late 1990s. The same technique is now to aid the task of identifying the remains of hundreds of victims of... view more... (2002-11-19)
New nanosensor uses quantum dots to detect DNA
Using tiny semiconductor crystals, biological probes and a laser, Johns Hopkins University engineers have developed a new method of finding specific sequences of DNA by making them light up beneath a microscope. view more (2005-12-06)
Superconducting nanowires show ability to measure magnetic fields
By using DNA molecules as scaffolds, scientists have created superconducting nanodevices that demonstrate a new type of quantum interference and could be used to measure magnetic fields and map regions of superconductivity. view more (2005-06-16)
Researchers map infectious hepatitis B virus
Using electron cryomicroscopy and computer image analysis, the scientists visualized two intermediate forms of the virus that exist within infected cells. In addition, they were able to determine a three-dimensional map by analysis of infectious hepatitis B virus isolated from patient blood samples. view more (2006-06-26)
Unraveling the viral mechanism
Using powerful computer tools and cryo-electron microscopes, researchers at Baylor College of Medicine unmasked the secrets of a tiny virus that infects bacteria and, in doing so, opened the door to a better understanding of a variety of viruses that infect people and animals. view more (2006-02-02)
Salmonella survives better in stomach due to altered DNA
Since 1995 there has been a considerable increase in the number of infections with a specific type of Salmonella bacteria transmitted via food. This type, Salmonella serovar Typhimurium DT104, is resistant to at least five different antibiotics. view more (2007-01-31)
Oncologists could gain therapeutic advantage by targeting telomere protein
Inactivating a protein called mammalian Rad9 could make cancer cells easier to kill with ionizing radiation, according to research at Washington University School of Medicine in St. Louis. view more (2006-02-17)
Genetic study of Neanderthal DNA reveals early split between humans and Neanderthals
In the most thorough study to date of the Neanderthal genome, scientists suggest an early human-Neanderthal split. The two species have a common ancestry, say the authors, but do not share much else after evolving their separate ways. view more (2006-11-16)
Study finds stool testing novel technique for detecting colon cancer
Researchers at Mount Sinai School of Medicine have found that an improved version of the non-invasive fecal DNA (fDNA) test to screen for colon cancer (CRC) demonstrates a higher sensitivity for detecting cancers of the colon. view more (2006-05-22)
New study finds how cells with damaged DNA alert the immune system
Research led by biologists at the University of California, Berkeley, has found that damage to a cell's DNA sets off a chain reaction that leads to the increased expression of a marker recognized by the body's immune system. view more (2005-07-05)
Researchers find better prostate cancer indicators
Researchers at Mayo Clinic have narrowed the search for effective prostate cancer biomarkers (genetic variations that point to a specific disease or condition), identifying changes in the expression of genes of the whole genome closely correlated to prostate cancer development and progression. view more (2006-03-28)
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