chemical 2 10

Tag: "chemical" at biology news

Ocean seep mollusks may share evolutionary history with other deep-sea creatures

...leak up through the ocean floor, creating a unique chemical environment where hardy bacteria process the sulfi...k to the ocean's depths, harbor yet another unique chemical community similar to that in vents and seeps. Some researchers suggest that whale falls were evolu...

Sports cheats beware -- new test detects previously undetectable drug

...trometric analysis. This lets scientists produce a chemical fingerprint of the molecule ?a fingerprint that uniquely identifies it. "If the drug testing authorities adopt this new test it will close a gap in the current drug testing system, and mean that athletes will no longer be able to get away with thi...

Detailed 3-D image catches a key regulator of neural stem cell differentiation in action

...ases turn the "light" on by adding small phosphate chemical groups - giving RNA polymerase the go-ahead to tra...ambiguous information relevant for the design of a chemical inhibitor by a process known as structure-based drug design." Capitalizing on information gleaned...

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

... robust way to uniformly and precisely control the chemical composition and architecture of polymers as well as the growth of every polymer chain, all while employing a broad range of monomers. Much of the research progress and commercial success related to ATRP is due to two research consortia Matyjaszewsk...

Plants give up answers in the war on bacteria

...those plant-based bacteria produce a phytotoxin, a chemical called coronatine, to force the pores back open. For bacteria, entry is crucial to causing disease and probably survival. They could die if left lingering on the surface. Animal-based bacteria do not produce coronatine. "Now that we know a key step...

From hot springs to rice farms, scientists reveal new insights into the secret lives of archaea

...eria-like microorganisms whose unique genetics and chemical structure separate them from all other living things. For years, biologists have pigeonholed archaea as extremophiles-creatures that live in extreme conditions. Indeed, many species of archaea thrive in environments that would kill other organisms, ...

Key gene controlling kidney development found

...stemal cells, are the source of cells triggered by chemical signals to differentiate into nephrons--the structures in the kidney that cleanse the blood of waste. The nephrons later become attached to ducts--tubes that collect the filtered blood as urine and direct it to the bladder. The St. Jude team showed t...

Sandia researchers discover way to see how a drug attaches to a cell

...pear as a paper in an upcoming issue of the German chemical journal Angewandte Chemie Int. Ed. In advance of publication, it is featured as a short "hot paper" on the journal's web site. Sandia is a National Nuclear Security Administration laboratory. In their paper Shelnutt and Song describe a new way of...

Biodegradable napkin -- featuring sensitive nanofibers -- may quickly detect biohazards

...rk conducted with Yong Joo, assistant professor of chemical and biomolecular engineering, and Antje Baeumner, associate professor of biological and environmental engineering, both at Cornell, Frey developed nanofibers with platforms made of biotin, a part of the B vitamin complex, and the protein streptavidin...

Developing uses for sugar-cane bagasse: Biotechnology applied to the paper industry

...widespread cultivation, lower energy and bleaching chemical requirements for bagasse refining. Such a process ...-strength and durable paper. In some countries the chemical processing involved still entail the use of chlorine, dangerous for both health and the environment....

Amateur boxing linked to brain cell injury

...to insulate and support them. An increase in this chemical was also recently found in patients who experienced severe brain injury, and the levels were linked to the patient's clinical outcome. Levels of all three chemicals were significantly higher in the seven boxers who had sustained more than 15 hits to...

An artificial cornea is in sight, thanks to biomimetic hydrogels

...e annual meeting of the American Chemical Society, chemical engineer Curtis W. Frank will present a novel biom... medical student jointly working on a doctorate in chemical engineering in Frank's lab. Myung's project, funded by Stanford's Bio-X interdisciplinary bioscien...

Electric jolt triggers release of biomolecules, nanoparticles

...nted in the body. The method also may be useful in chemical reactions that require the controlled release of e...nert metal, it wouldn't get involved in any of the chemical reactions." To tether each useful molecule to this surface, the team used a long chain of hydrocar...

Motorola researchers develop selective sensors based on carbon nanotubes

...tworks will enable the detection of biological and chemical agents at very low concentrations, which could be ...archers report the advance in a paper, "Tuning the chemical selectivity of SWNT-FETs for detection of heavy metal ions," which will be published in the journal ...

Researchers make nanosheets that mimic protein formation

...very to energy," said Sharon Glotzer, professor of chemical engineering and materials science and engineering....Glotzer and Nicholas Kotov, associate professor of chemical engineering, and their graduate students and post doctoral researchers have co-authored a paper sche...

Molecular 'signature' protects cells from viruses

...like a long string. In viruses there is a specific chemical signal, known as a triphosphate, located at one end of this string. The RNA in the cell's nucleus basically also contains this triphosphate end. However, on top of it there is an additional short molecule, a molecular cap. 'In all animals and plants ...

Engineer ramps up protein production, develops versatile viral spheres

...s and for other uses," says Swartz, a professor of chemical engineering and bioengineering at Stanford. "If we...om proteins because they don't always tolerate the chemical changes a researcher needs to impose to make a specific product. Cell-free techniques, in contrast, ...

What's next for gene therapy? Plastic

...degree is from Virginia Commonwealth University in chemical engineering, "typifies the way we are going to educate students in the future," Long said. "He is an engineer working in chemistry on gene therapy. He collaborates with researchers in the Virginia Tech-Wake Forest School of Biomedical Engineering and...

Protein 'fingerprint' in spinal fluid could spot Alzheimer's disease

...ecular and Cell Biology and associate professor of chemical and biomolecular engineering at Cornell. Researc...used some amount of dementia," she said. "Having a chemical test available may allow patients to be diagnosed earlier in the course of the disease." The Corn...

Particle size matters to bacteria ability to immobilize heavy metals

...een 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 effort by the Virginia Tech team is addressing one component of a wi...

1 2 3 4 5 6 7 8 9 10