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Tag: "chemists" at biology news

New finding points way to foiling anthrax's tricks

University of California, Berkeley, chemists have discovered a trick that anthrax bacteria use to make an end run around the body's defenses, but which may turn out to be their Achilles' heel. The UC Berkeley scientists, working with colleagues at the University of Mississippi Medical Center i...

Uniform tungsten trimers stand and deliver

...d be used in an application. Such models reveal to chemists the exact structure and reaction mechanisms of metal oxides. Developed by researchers from the Department of Energy's Pacific Northwest National Laboratory, the University of Texas-Austin and Washington State University, the discovery may offer a pl...

Particle size matters to bacteria ability to immobilize heavy metals

...larger chunks of the same material. Physicists and chemists have been trying to describe the changes in physical and chemical properties of nanoparticles for some time but little work has been done to describe the effect of nanoparticles on natural environments where they interact with microorganisms. This ef...

Carnegie Mellon scientists use 'green' approach to transform plastics manufacturing

...that could be made using this method. For example, chemists could grow high molecular weight polymers with precise control, providing even larger templates for nanoscale carbon structures used in computer screen field emission displays and semi-conductors that regulate the flow of electricity in sensors, some...

BC catalyst discovery promises faster, cheaper drug production

Boston College chemists have discovered a substance that will make it possible for scientists to produce scores of pharmaceuticals and other chemicals in a faster, less expensive way. In a letter published in the Sept. 7 issue of the journal Nature, a team led by professor...

A sweet step toward new cancer therapies

...nal Analytical Chemistry. Typically, analytical chemists use mass spectrometry---a technique that accurately weighs molecules or fragments of molecules---to analyze proteins. In this process, proteins are introduced into the mass spectrometer and fragmented by heating until the weakest bonds break. "It's t...

OHSU lab finds meth receptor that could lead to therapy

... of the few in the U.S. that allows biologists and chemists to work side-by-side, using their combined skills to identify drug targets and to design new drugs to treat diseases like drug addiction," said David Dawson, Ph.D., OHSU professor and chairman of physiology and pharmacology. "Chemical space ?that is,...

Turning green gunk to gold, anti-cancer gold

...o much promise as an anti-cancer drug that organic chemists got busy trying to find ways to make a synthetic form of the compound in large enough quantities for clinical trials. Developing an efficient synthetic route to natural product compounds and their analogs is often an essential step in drug develo...

New study sheds light on 'dark states' in DNA

...te and head of the research team. The Ohio State chemists determined that, when excited by ultraviolet light...oseconds -- much longer than the bright state. The chemists reported their results in the Proceedings of the National Academy of Sciences. "We want to know, w...

Progress toward artificial photosynthesis?

...ning its cleavage in a chemical reaction," explain chemists Goettmann, Thomas and Antonietti, " is one of the biggest challenges in synthetic chemistry." The bonds in this molecule are very stable, so a lot of energy is needed to split them. To date, only a few special metal catalysts are known to be capable ...

Scientists see DNA get 'sunburned' for the first time

...by ultraviolet (UV) light. Ohio State University chemists and their colleagues in Germany used a special tec...seases such as skin cancer. For this study, the chemists used a technique called transient absorption to observe the DNA damage. Transient absorption is base...

Iowa State scientists demonstrate first use of nanotechnology to enter plant cells

...wa State University plant scientists and materials chemists have successfully used nanotechnology to penetrate...oduce the nanoparticles to walled plant cells, the chemists made another clever modification on the particle surface. They synthesized even smaller gold particl...

Decoding protein structures helps illuminate cause of diabetes

...luding diabetes and Alzheimer's disease. Now, chemists at the University of Wisconsin-Madison have designed a powerful analytical tool capable of measuring molecular structures quickly and accurately enough to catch moving proteins in mid-fold and see the shapes of intermediate steps. As described in th...

New knowledge improves rice quality

...in Quality" at IRRI. The event attracted 71 cereal chemists and other experts from more than 20 nations. "It’s very clear from the great response we got to the workshop that rice quality is becoming a very hot topic in rice research almost everywhere," the convener and head of IRRI’s Grain Quality, Nutri...

Technique monitors thousands of molecules simultaneously

... for synthetic organic chemistry, changing the way chemists and biomedical researchers make molecules, build m...id that the standard problem for synthetic organic chemists has typically been a structural one ?how do we build molecules having novel structures? "We've wo...

Plastic that grows on trees

...um. It has been an elusive goal for the legion of chemists trying to pull it off: Replace crude oil as the root source for plastic, fuels and scores of other industrial and household chemicals with inexpensive, nonpolluting renewable plant matter. Scientists took a giant step closer to the biorefinery thi...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

...knowing the pH values can help pharmacologists and chemists redesign a molecule to take advantage of these changes."...

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