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Tag: "materials" at biology news

Fighting to keep Darwin in the classroom

... what is needed now is a fresh source of evolution materials and anti-creationism ammunition for our school tea...e gap between scientific literature and curriculum materials normally available to educators and students. Niles Eldredge has been a paleontologist on the cur...

What's in the water? Estrogenic activity documented in fish caught in Pittsburgh's rivers

...ed us most in this study was that these estrogenic materials are present in such easily detected levels in local fish." According to Dr. Volz, the next step in this research is to identify the estrogenic chemicals and their sources in the local water and fish. "These findings have significant public health...

New biofuels process promises to meet all US transportation needs

... to 70 percent of the carbon atoms in the starting materials are lost in the process as carbon dioxide, a greenhouse gas, whereas no carbon atoms would be lost using H2CAR, Agrawal said. "This waste is due to the fact that you are using energy contained in the biomass to drive the entire process," he said. ...

The chimpanzee stone age

... exclusive of humanity, including transport of raw materials across the landscape; selection and curation of raw materials for a specific type of work and projected usage; habitual reoccupation of sites where garbage and de...

Cancer tip -- Nanoparticles can damage DNA, increase cancer risk

...ue studies indicate that nanoparticles, engineered materials about a billionth of a meter in size, could damage DNA and lead to cancer, according to research presented at the 2007 Annual Meeting of the American Association for Cancer Research. Nanoparticles are small enough to penetrate cell membranes and def...

Scientists create dual-modality microbeads to improve identification of disease biomarkers

...so professor of biomedical engineering, chemistry, materials science & engineering, and hematology and oncology at Emory University and the Georgia Institute of Technology. "Some of the biomarkers for Alzheimer’s disease have very low concentrations in the blood so you need highly sensitive techniques ...

Buckyballs used as 'passkey' into cancer cells

...can Jr.-Welch Professor of Chemistry, professor of materials science and associate dean for industry interactions and technology transfer....

Natural polyester makes new sutures stronger, safer

...er suture cleared last month by the FDA is made of materials that the human body produces naturally, so they can be safely absorbed once the wound is healed. They are also 30 percent stronger than sutures now used and very flexible, making them easier for surgeons to work with. The sutures were developed by...

Organic is healthier: Kiwis prove that green is good

...r books and subscription services; and educational materials for undergraduate and graduate students and lifelong learners. Wiley has publishing, marketing, and distribution centres in the United States, Canada, Europe, Asia, and Australia. The company is listed on the New York Stock Exchange under the symbo...

Ultrathin films deliver DNA as possible gene therapy tool

... Preliminary laboratory tests of the DNA-coated materials are promising. "The films survive basic mechanica...ues and organs. "Our long-term goal is to develop materials useful for localized gene therapy," he says. ...

Bacterial response to oxidation studied as toxin barometer

... specific predictor,?said Brian Love, professor of materials science and engineering at Virginia Tech. “We don’t know yet because we haven’t tested other cell types.? Brian Love has been assisting with the research team’s attempts to immobilize the sentinel bacteria as part of a biosensor design strategy. ...

With cellulosic ethanol, there is no food vs. fuel debate according to MSU scientist

...d shortages. However, ethanol made from cellulosic materials instead of corn grain, renders the food vs. fuel d...pert. Bruce Dale, an MSU chemical engineering and materials science professor, has used life cycle analysis tools, which include agricultural data and computer ...

Widely used iron nanoparticles exhibit toxic effects on neuronal cells

...sumed to be safe," said Sungho Jin, a professor of materials science at UCSD and senior author of a paper to be... be made to carry anti-cancer drugs or radioactive materials directly to a tumor. Magnetic nanoparticles designed to attach to cancerous tissue can also be made ...

U of M researchers invent 'flashy' new process to turn soy oil, glucose into hydrogen

...t, a Regents Professor of chemical engineering and materials science at the university. "Potentially, the bioma...nds with ease, meaning cellulose and similar plant materials can possibly be used as feedstocks. Schmidt and his university colleagues--graduate students James...

Dopamine used to prompt nerve tissue to regrow

...ferentiating nerve cells than the two most popular materials for culturing nerves -- polylysine and laminin. This ability means that the material with dopamine may have a better chance to successfully repair damaged nerves. The success of dopamine has encouraged the team to set its sights on other neurotra...

One-of-a-kind imaging probe reveals secrets useful for drug discovery

...When we started you could hardly work with natural materials in terms of milligrams. Now you can do chemistry on the microgram scale. NMR has made enormous progress - it has thousands of times the sensitivity it used to have. The findings in Florida represent the great improvement that has taken place in the s...

Scientists crack rhino horn riddle

...s have discovered new details about the structural materials that form the horn and the role those materials play in the development of the horn's characteristic shape. The horns of most animals have a bo...

Gold nanoparticles prove to be hot stuff

.... The JILA team would like to find new microsphere materials that can be trapped by laser radiation pressure more efficiently, which would enable faster measurements and detection of smaller motions at the same laser power. As described in the Aug. 15 issue of Optics Letters,* the JILA team demonstrated that 1...

Protein structure initiative launches new resources for the scientific community

...al Institute of General Medical Sciences, funded a materials repository in September. Next year, it will create an information hub where researchers can search for and submit structural information. Meanwhile, PSI scientists will continue to develop new methods and tools for protein structure studies that are ...

Recycling technology

...EU legislation now prevents disposal of electronic materials in landfill. Dr Avtar Matharu, of the Department of Chemistry at York, said: "The amount LCD waste is increasing at an alarming rate and, with disposal in landfill or incineration no longer acceptable, new solutions were needed. We have developed ...

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