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Tag: "chemistry" at biology news

MIT nanoparticles may help detect, treat tumors

... International Edition, one of the world's leading chemistry journals. The research, which is just moving into animal testing, involves injecting nanoparticles (billionths of a meter in size) made of iron oxide into the body, where they flow through the bloodstream and enter tumors. Solid tumors must form ne...

New finding points way to foiling anthrax's tricks

...ystem," said Ken Raymond, UC Berkeley professor of chemistry and faculty scientist at Lawrence Berkeley National Laboratory. Anthrax bacteria are known to produce two small molecules - bacillibactin and petrobactin - that snatch iron away from the human body's iron transporter molecules, called transferrin...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...eaction centers.'' Boxer's collaborators included chemistry postdoctoral fellow Mary Kraft of Stanford, who isotopically labeled the lipids used in the experiments, prepared the samples and performed all the measurements, Associate Professor of Chemical Engineering and Materials Science Marjorie Longo at the ...

Eat less, weigh more? Enzyme makes lean mice 'susceptible' to dietary fat

... author of the study and a professor of biological chemistry in the Institute for Basic Biomedical Sciences at Hopkins. "The liver sure isn't going to tell you, it just keeps storing fat as long as the body is well fed." Instead, he notes, it is the control regions of the brain, namely the hypothalamus, that g...

Major cancer study aims to identify protein markers for early-stage disease

...adford W. Gibson, PhD, a professor and director of chemistry at the Buck Institute for Age Research and UCSF adjunct professor of pharmaceutical chemistry. The team also includes key co-investigators at California Pacific Medical Center in San Francisco, M. D. Anderson Cancer Center in Houston, and Universit...

Light-sensitive photoswitches could restore sight to those with macular degeneration

...common diagnosis being macular degeneration. The chemistry at the core of the photoswitch is a molecule - an azobenzene compound - that changes its shape when illuminated by light of different colors. Kramer, Trauner and Isacoff created a channel called SPARK, for Synthetic Photoisomerizable Azobenzene-Regul...

Researchers discover how bacteria sense their environments

...tration," said Brian Crane, assistant professor of chemistry and chemical biology and corresponding author of t...ors is organized. Jack Freed, Cornell professor of chemistry and chemical biology and director of the National Biomedical Center for Advanced ESR Studies at Corn...

Researchers to develop ultra-miniature implantable sensors to measure blood flow

... that simultaneously measure blood pressure, blood chemistry and temperature." For more information about Kan's research, visit http://people.ece.cornell.edu/kan , or visit http://www.cnf.cornell.edu for information about the Cornell NanoScale Science and Technology Facility. Information about Transonic Sy...

'LEGO-Like' building blocks to halt cell growth wins Hebrew University prize

...us scientific prize for a Ph.D. student in organic chemistry at the Hebrew University of Jerusalem Jerusalemite Nir Qvit, 34, will be one of those receiving the Kaye Innovation Award on June 13, during the 69th meeting of the Hebrew university Board of Governors. Qvit has shown through his research that it...

Dopamine drug leads to new neurons and recovery of function in rat model of Parkinson's

...oreover, given that similar drugs exist, medicinal chemistry to maximize this effect could be achieved quickly," says Diane Murphy, Ph.D., the NINDS program director for the grant that funded this research. Dr. Eckman and Dr. Van Kampen are now looking at how different doses of pramipexole and similar drugs a...

Report warns about carbon dioxide threats to marine life

...ossil fuel burning are dramatically altering ocean chemistry and threatening marine organisms, including corals...extent of the impacts. "It is clear that seawater chemistry will change in coming decades and centuries in ways that will dramatically alter marine life," says ...

Corals switch skeleton material as seawater changes

... month in "equilibration tanks." Ries adjusted the chemistry of those tanks over 30 days, until their magnesium...s to produce skeletons that are not favored by the chemistry of the seawater surrounding them. The calcite-producing corals grown in artificial ancient water g...

NYU researchers decorate virus particles, showing potential to enhance MRI capabilities

... Canary, radiologist Dr. Edwin Wang, and assistant chemistry professor Kent Kirshenbaum. Assistance for the study was provided by the University of New Mexico's Department of Molecular Genetics and Microbiology at its Health Sciences Center. The protein coats of viruses provide an attractive platform f...

UCSD researchers develop 'smart petri dish'

...ribed in the June 20 issue of Langmuir, a physical chemistry journal published by the American Chemical Society...its toxicity," says Michael Sailor, a professor of chemistry at biochemistry at UCSD who headed the research team. "Since the liver is the organ that cleans up t...

Researchers unveil strategy for creating actively-programmed anti-cancer molecules

...ll that makes antibodies. "By bringing together chemistry and biology, our approach provides a way to break the traditional one antibody-one target axiom of immunochemistry," said Lerner. "This new hybrid technology offers great possibilities for the enhanced treatment and diagnosis of a variety of diseases...

UCI scientists find chlorine may contribute to ozone formation

...es between 40 and 80 parts per billion. "Chlorine chemistry can have a direct impact on surface ozone even at ...lly understand the role chlorine may play in ozone chemistry in coastal urban environments." Saltzman and Brandon Finley, a graduate student researcher in the...

Arctic coring expedition continues to yield new clues

... commonly seen in the ACEX cores. Furthermore, the chemistry of the organic carbon in the ACEX cores may rule out some earlier theories about what caused the PETM. The diminution of these alternate explanations strongly suggests that an enormous amount of carbon entered the atmosphere at the beginning of the P...

Bedsores and bald hides: Novel roles revealed for a 'scaffolding' protein

...Pierre A. Coulombe, Ph.D., professor of biological chemistry in the Institute for Basic Biomedical Sciences at Hopkins. "The involvement of K17 in wound healing has not previously been known to influence the making of proteins, and this information has profound implications for our understanding of the role of...

Connect the Quantum Dots

...ays Francisco Raymo, Ph.D., associate professor of chemistry in the University of Miami's College of Arts and Sciences. "For example, our strategy can be designed to signal specific disease markers in biological samples thus replacing conventional organic dyes in a diversity of imaging and sensing applications...

Magnetism and mimicry of nature hold hope for better medicine, environmental safety

...des Mark Hayes and Devens Gust, both professors of chemistry and biochemistry, and Tom Picraux, who spent the past four years on the ASU chemical and materials engineering faculty before recently becoming chief scientist for the Center for Integrated Nanotechnologies at the Los Alamos National Lab in New Mexic...

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