Tag: "polymer" at biology news
...jugates into clinical trial. She pointed out that polymer
therapeutics -- which was unfashionable and considered an eccentricity in the 1970s and 80s -- had now generated promising compounds in many disease areas. Looking to the future, Professor Duncan said that nanomedicine research is expected to bring ...
DuPont scientist named one of the world's top young innovators by MIT's 'Technology Review' Magazine
...DuPont in 2002 and is currently leading the DuPont polymer
photonics team. Her research focuses on the use o...tion. Dr. Petrucci-Samija produced and patented a polymer
so transparent to light that it rivaled the performance of the state-of-the-art glass optical device...
Two Virginia Tech energy-related inventions win R&D 100 awards
...rical energy. PEM fuel cells use an ion-containing polymer
(a form of plastic) for this process. Electrons are captured to generate electricity and protons pass through the membrane film, then combine with oxygen to create a environmentally neutral water byproduct. PEM fuel cells can be integrated into st...
Story tips from the Department of Energy's Oak Ridge National Laboratory, September 2004
...ments using ink-jet methods confirmed, that dilute polymer
solutions organize themselves into compact shapes. Using these techniques with photosensitive materials, ORNL researchers produced nanoparticles with superior optical and electronic "quantum dot" properties that function similarly to light-emitting d...
Cleaner water, more efficient electricity among UH chemical research
... of a new class of biodegradable and biocompatible polymer
composites with enhanced mechanical properties that are lightweight for potential applications in biomedical devices and drug delivery using carbon nanotubes. P. Shiv Halasyamani, assistant professor of chemistry, will talk about the importance o...
When is a mouse like a test tube?
...c-organic chemist Hermann Staudinger, a pioneering polymer
chemist who won the Nobel Prize in 1953. Azides are simple, three-nitrogen molecules that can be added to biological molecules, in particular sugars, without really being noticed by the body. Phosphines are phosphorous-containing molecules that react...
ASU researchers demonstrate new technique that improves the power of atomic force micrscopy
...ibody tipped probe is truly sensitive, a strand of polymer
connects the antibody to the tip, providing a tether that allows the antibody to wiggle into position to better connect with the protein receptors. A magnetically excited cantilever makes the tip oscillate up and down to make the antibody disconnect ...
Newly designed nanoparticle quantum dots simultaneously target and image prostate tumors in mice
...ntum dots were encapsulated in a highly protective polymer
coating and attached to a monoclonal antibody that...h binding to the antigen target. The new triblock polymer
coating protected the quantum dots from attack by enzymes and other biomolecules. The active method...
Fluid derived from aloe plant prolongs life after hemorrhagic shock in animal study
...t of the fluid, an aloe vera-derived drag reducing polymer
(DRP), had significantly longer survival time and increased systemic whole body oxygen consumption, even in the absence of resuscitation with blood or other fluids, compared to animals that did not receive DRP. "We hope this fluid will offer a viable...
Story tips from the Department of Energy's Oak Ridge National Laboratory, July 2004
...s Division that produces uniformly oriented single polymer
molecules in the (non-intuitive) z direction "lik...of Applied Physics Letters, is that these oriented polymer
nanostructures are very efficient at emitting single photons. This property could be useful in photo...
Measuring blood sugar with a wave of the arm
... coatings. Grimes' glucose sensor is coated with a polymer
that responds to changes in acidity, and then coat...blood glucose to produce an acid, which causes the polymer
to swell and changes the frequency of the sensor. The reader then interprets these changes as blood ...
Device that rapidly detects nerve agents named one of 'greatest army inventions' for 2003
...c activity of enzymes that have been embedded in a polymer
sponge-like material. If contamination is detected, within seconds the sponge changes color from yellow to red. Beyond its high sensitivity to nerve agents, the Nerve Agent Sensor also is resistant to environmental factors, such as high temperatures...
Biocompatibility to widen scope of biomaterial applications
... polymers from a beaker by programming the modular polymer
scaffolds to attract building blocks of small molecules. This 'one-beaker' process aims at simplifying the synthesis of designer polymers through self-assembly using combinatorial chemistry. Researchers have used the same 'one-beaker' principle to bu...
Scientists discover new role for tiny RNA in plant development
...code of DNA into a protein. Structurally, RNA is a polymer
consisting of a chain of phosphate, sugar and nucleotides. The most common type of RNA, messenger RNA, contains thousands of nucleotides and is the genetic blueprint that cells use to combine amino acids into proteins. MicroRNAs are much smaller, typ...
New multidisciplinary research tops chemists' meeting Aug. 22-26
...for the future From the violin to Blackberry: The polymer
science of everyday things Swirling chemistry into the paint can The chemistry behind environmental crimes From the heart: Recent advances in cardiovascular disease...
Laser technique used to build micro-polymeric structure on a human hair, without harming it
...n-absorption photopolymerization (MAP), in which a polymer
can be deposited at the focal point of a laser beam; scanning of the laser beam in a desired pattern then allows for the formation of intricate, three-dimensional patterns. This technique, also being explored by a handful of other groups worldwide, m...
JGI decodes wood & toxic waste-degrading fungus genome
...iciently degrading the recalcitrant aromatic plant polymer
lignin, one of the most abundant natural materials on earth. White rot fungi such as Phanerochaete chrysosporium play a pivotal role in the carbon cycle--the circulation of carbon from the atmosphere into organisms and back again. They also have de...
NASA-inspired technology may help preserve women's future fertility after cancer treatment
...an tissue was encapsulated in a special protective polymer
gel and some was not, Dr. McGee said. Culture wells, test tubes and rotating wall vessels were incubated for 72 hours, and follicle diameters were measured daily. Between 25 and 60 follicles were analyzed for each treatment group. In addition, follic...
...et lies in the production of a very thin but tough polymer
capsule to enclose the sample, allowing it to with...scanning electron microscopes." The capsule's polymer
is unique in that it is allows the electrons with which a SEM works to pass through unobstructed, gi...
Invention could improve PVC safety and strengthen $1.8-billion industry worldwide
...rnes has invented are so compatible with the vinyl polymer
that they also serve as plasticizers when used at high levels. Their dual benefit as both stabilizers and plasticizers could make ester thiols a near perfect solution for certain problems associated with PVC, namely questions about safety. In recen...
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