Microbe first to break down PCBs
...s, because they don't dissolve well in water. They attach to sediment and get covered over," he says. "Unless there is some turnover, a lot of PCBs stay hidden." The hazardous pollutants can build up in fish and marine mammals, in which PCBs can reach thousands of times higher levels than in the water they...Research may lead to jump-starting damaged nerve cells
... channel proteins. These ion channel proteins then attach to certain places on the nerve cells membrane, where they channel electrically charged particles called ions in and out of the neuron. This results in the cells becoming able to conduct electrical impulses. In their most recent study, Dryer and post-...Potato technology may help move mail
... and releases one atom. Some of these single atoms attach themselves to a standard oxygen molecule. This cre...nstability causes the extra oxygen atom to want to attach to something, and carbon is its favorite something. Since viruses and bacteria such as anthrax are v...Researchers at TSRI turn viruses into enhanced nanochemical building blocks
...Institute for Chemical Biology have found a way to attach a wide range of molecules to the surface of a viru...rated was that under the proper conditions, we can attach 60 molecules to the virus surface," says Johnson, who is a professor in TSRI's Department of Molecul...Study reveals new information on how viruses enter cells
... whole series of events are required to recognize, attach and confirm the attachment, and then contract so that the viral DNA can be ejected into the host," Rossmann says. "It's a very complicated system for infecting a cell." The viral machine works as follows: The virus uses its long-tail fibers t...New understanding of complex virus nano-machine for cell puncturing and DNA delivery
...ter" of the virus. When the long and short fibers attach to E. coli, the baseplate transmits this message to the tail, which contracts like a muscle. The baseplate both controls the needlepoint of the tail and the cutting enzyme that make a tiny, nanometer-sized hole through the cell wall of the E. coli. ...Discovery of bacterial 'touch sensor' could lead to biofilm treatments
...ogy. "If we mutate these genes, the bacteria don't attach as well and, if they do, they attach in a different way." A paper describing the results is appearing in the Feb. 5 online edition of the...Immerge biotherapeutics identifies miniature swine that do not transmit pig retrovirus to humans
...) rejection response happens when human antibodies attach to sugar molecules on the surface of the transplan...liminated, there is no sugar for the antibodies to attach to, so the rejection cascade cannot begin. These two studies show that animals within this herd of ...Endangered freshwater mussels saved
...sel prefers. The larvae, which are parasitic, must attach to fish, from which they extract the nutrients req...ys. "In the wild, 99 percent of these larvae never attach to a fish and are wasted." The host fish are kept in holding tanks after they are "infested" with la...Purdue to help NASA create life-supporting ecosystem in space
...ow in that slimy matrix. The matrix allows them to attach to surfaces." Banks' research team will grow specialized biofilms on plastic devices, such as spherical structures, through which air and water pass. "The microbes will eat, actually degrade, the organic contaminants in the water and the air," Banks ...Bug vs. bug: scientists use microorganisms to target destructive termites
.... They are self-propagating: Bacterial spores that attach to the bodies of the termites can be carried throughout their colonies, spreading to and killing the insects as the spores rejuvenate. The researchers are currently trying to select these germs so that they poison the termites slowly. This approach...Scientists push back primate origins from 65 million to 85 million years ago
...a timescale from molecular data alone. In order to attach a timescale to a molecular tree, the standard practice has been to calibrate it using usually only one date derived from the fossil record. If the date of origin of a group derived from the fossil record is seriously underestimated, the same must be ...Scientists discuss microbial pathogenesis in era of bioterrorism, drug resistance
...een studying the twitching movement in which cells attach to neighboring cells to create the biofilm, and she believes such understanding of how the biofilm forms and functions will identify new targets for the prevention and treatment of chronic and persistent infections. Learning how to turn on the cells...Sea Grant News: Caulerpa, DNA water quality detectives, Kayaking in Maine
... water. Cowen believes that successful pathogens attach themselves to organic aggregates, which in turn carry the bacteria through the watershed to a new location. A new technique, called Fluorescent In Situ Hybridization (FISH), is being used to detect this movement of pathogens and aggregates. By usin...Stem cells help brain repair, make new neurons and blood vessels after stroke
...ve down passing white blood cells or stem cells to attach there, Dr. Hill said. Also key is identifying which specific stem cells are summoned and are needed to make new blood vessels, support cells and neurons. This may permit selective recruitment and proliferation of just the cells needed for repair, Dr...Electronic tongue for environmental monitoring
...linder packed with silica beads. It is possible to attach a variety of chemical hooks on to the beads, so that as the sample passes down the column of beads different components will be grabbed by the hooks to differing extents. In this way the various components can be separated from the mixture and analys...Metal-eating algae, spartina eradication, horseshoe crabs
...ering the algae to increase the algae's ability to attach itself to heavy metals in Lake Erie sediment. The...and sites. "By increasing the algae's ability to attach to trace metals, we believe this research will be an important step in the identification of the bes...Vitamin D may be crucial in preventing colon cancer
...es another endogenous compound, LCA, that can also attach to the receptor, this suggests that we can develop protective drugs that dont produce hypercalcemia, but do activate the detoxification pathway....From a single DNA strand, a tiny motor
...site, the nanomotors would make the drug molecules attach and stick to the cancer cell membrane, Tan said. Perhaps more importantly, the motors precision would give them the ability to prevent the drugs from attaching to noncancerous molecules or healthy parts of the body eliminating the debilitating effec...Children's Hospital Boston researchers use therapeutic cloning to create functional tissue in cows
...ds were placed in incubators to allow the cells to attach and form tissue. The cell-mold structures were implanted back into the cows from which the initial skin cells were harvested. Miniature kidneys, skeletal and heart muscle tissues were cloned. The miniature kidneys were able to excrete metabolic w...