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Tag: "chemistry" at biology news

MU researchers to study the status of black bears in Missouri

...researchers – Kaitlyn Faries, a senior biology and chemistry major, and Lori Eggert, assistant professor of biological science in the College of Arts and Science – will use a non-invasive sampling technique called “hair snares,” barbed wires that remove a few of the bears’ hairs without harming the bears thems...

Plastic that grows on trees

...IC director and Robert A. Welch chair in materials chemistry at the University of Texas. “This work opens the w...ntal catalysis science in a novel solvent.” The chemistry at work remains largely a mystery, Zhang said, but he suspects that metal chloride catalysts work du...

Antarctic icebergs -- Hotspots of ocean life

...estions across the different areas from ecology to chemistry and climate, scientists need access to all the data,” explained researcher John Helly of the San Diego Supercomputer Center (SDSC) at UC San Diego who managed the data. “And we need to reliably harvest this information at sea, thousands of miles from...

An 'elegant' idea proves its worth 25 years later

...of copying the body’s own natural "waste disposal" chemistry to mop up potentially toxic nitrogen has saved an estimated 80 percent of patients with urea cycle disorders --- most of them children – according to a report in this week’s New England Journal of Medicine summarizing a quarter century of experience ...

Technique monitors thousands of molecules simultaneously

...Moeller, Ph.D., Washington University professor of chemistry in Arts & Sciences, is doing this so that the ...lieve we can move most of modern synthetic organic chemistry to this electrochemically addressable chip. In this way, a wide variety of molecules can be generate...

Protein enables discovery of quantum effect in photosynthesis

...obert Blankenship, Ph.D., professor of biology and chemistry in Arts & Sciences at Washington University in...ence Berkeley National Laboratory and professor of chemistry at the University of California, and colleagues used 2-D spectroscopy to study what happens inside ...

Decoding protein structures helps illuminate cause of diabetes

...ues to what drives the transition, says UW-Madison chemistry professor Martin Zanni, who led the new study. In trying to understand diabetes, "people have been looking at the fibers, but they should be looking at their formation," he says. "Somehow that mechanism is causing holes [in pancreas cells], which...

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

...Plant Sciences Institute; Victor Lin, professor of chemistry and senior scientist, U.S. Department of Energy’s Ames Laboratory; Brian Trewyn, assistant scientist in chemistry; and Francois Torney, formerly a post-doctoral scientist in the Center for Plant Transformation and now a scientist with Biogemma, Clerm...

Scientists see DNA get 'sunburned' for the first time

...g energy, said Bern Kohler, associate professor of chemistry at Ohio State. Some exited energy states last a long time, and others a short time. The energy often decays away harmlessly, but occasionally it triggers a chemical reaction that alters the DNA's molecular structure. Previously, scientists believe...

Natural antibiotics yield secrets to atom-level imaging technique

...said Ramamoorthy, who is an associate professor of chemistry and an associate research scientist in the Biophysics Research Division. While researchers have identified hundreds of AMPs in recent years, they're still puzzling over exactly how the peptides wipe out bacteria and other microbes. Unlike conventi...

Selectivity is ultimate aphrodisiac

...ed the investigators to take a serious look at the chemistry that has been at the center of so much literature, art and imagination throughout the ages. "Potential partners who seem undiscriminating are a definite turnoff, and those who evoke the magic of feeling special are a big draw," said Paul W. Eas...

Nanotextured implant materials: blending in, not fighting back

...ntly about increased clotting. Instead of using chemistry to fight the body's response to such foreign materials, Thomas Webster, an associate professor of engineering, and Karen Haberstroh, an assistant professor of engineering, thought maybe they could use physical structure to allow the foreign materials...

NASA predicts nongreen plants on other planets

...he surface of Earth-like planets whose atmospheric chemistry is consistent with the different types of stars they orbit. By looking at the changes in that light through different atmospheres, researchers identified colors that would be most favorable for photosynthesis on other planets. This new research n...

Progress toward artificial photosynthesis?

...talyst. "This could make novel, previously unknown chemistry of CO2 accessible," hopes Antonietti. "It may even be the first step in artificial photosynthesis."...

New study sheds light on 'dark states' in DNA

...le helix, said Bern Kohler, associate professor of chemistry at Ohio State and head of the research team. The Ohio State chemists determined that, when excited by ultraviolet light, these three bases dissipate energy through the dark state anywhere from 10-50 percent of the time. The rest of the time, ener...

Turning green gunk to gold, anti-cancer gold

Combining synthetic chemistry techniques with a knowledge of the properties and actions of enzymes, scientists have been able to produce an exciting class of anti-cancer drugs originally isolated from blue-green algae. This accomplishment is expected to make it possible to prod...

Researchers create artificial enzyme that mimics the body's internal engine

...cording to James P. Collman, professor emeritus of chemistry at Stanford University. To help scientists achieve a better understanding of how CcO works, Collman and his colleagues have built a new model of the enzyme's active site-a region on the protein's surface where chemical reactions occur. According to ...

RNA enzyme structure offers a glimpse into the origins of life

...tasks," said William Scott, associate professor of chemistry and biochemistry at UC Santa Cruz. Scott and postdoctoral researcher Michael Robertson determined the structure of a ribozyme that joins two RNA subunits together in the same reaction that is carried out in biological systems by the protein known ...

No carrier necessary: This drug delivers itself

...Pudavar, Ph.D., UB research assistant professor of chemistry and a co-author. The nanocrystals present a majo...jit Roy, Ph.D., UB research assistant professor of chemistry and another co-author. The researchers found that because HPPH is amphiphillic, i.e., partially so...

New research says winning a Nobel Prize adds nearly 2 years to your lifespan

...hers looked at winners and nominees in physics and chemistry between 1901 and 1950 (the full list of nominees are kept secret for 50 years). This gave them 528 male scientists with known biographical details (birth and death dates). They looked at one sex only to avoid differences in life span between sexes. T...

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