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Tag: "nanoparticles" at biology news

Novel technology detects human DNA mutations

...re's President and CEO. "This study and the use of nanoparticles to dramatically increase sensitivity in our other proprietary applications -- such as bio-barcode for ultra sensitive detection of proteins -- demonstrate the broad applicability of nanotechnology and its potential to markedly advance the state-of-th...

Tiny particles could solve billion-dollar problem

...ogical and Environmental Nanotechnology finds that nanoparticles of gold and palladium are the most effective catal... on an aluminum oxide support base, pure palladium nanoparticles and a hybrid nanoparticle developed by Wong that consists of a gold nanoparticle covered with a thin...

Novel antiviral technology inhibits RSV infection in mice

.... These fragmentswere encapsulated within chitosan nanoparticles -- minisculenaturally-occurring, biodegradable particles that stick tomucous-producing cells lining the lungs. The RNA produced isspecifically designed to suppress the protein NS1. Without NS1, thehost antiviral defense remains intact and the virus c...

Imaging Lymph Nodes with Nanoparticles

...lving the buzzword "nano" - cancer detection using nanoparticles and MRI (magnetic resonance imaging) : Accurate s...chemistry intomedicine, researchers have developed nanoparticles to improve thediagnostic accuracy of MRI. The nanoparticles contain a centralsuperparamagnetic iron ...

Taking Aim With Nanoparticle PEBBLEs

... off. But "there's no doubt," said Kopelman, "that nanoparticles such as PEBBLEs can do a fantastic job for therapy, diagnostics and a combination of the two." Kopelman's collaborators on the work he will discuss in San Diego are Martin Philbert, professor of toxicology and Associate Dean for Research in the Scho...

Scientists develop new color-coded test for protein folding

...ith a protein called cytochrome c. "We chose gold nanoparticles because they are simple to prepare, easy to contro...rote. "To the best of our knowledge, however, gold nanoparticles have not been previously used to investigate the folding and unfolding of proteins." The initial ba...

Probing The Promise And Perils Of Nanoparticles

For all its promise, the prospect of using nanoparticles in biomedical applications and consumer products h...ose concerns by investigating how certain kinds of nanoparticles damage cell membranes—enough to cause cell death in some cases—and how the damage can be prevented. ...

Study shows nanoshells ideal as chemical nanosensors

...the National Academy ofScience finds that tailored nanoparticles known as nanoshells canenhance chemical sensing by as much as 10 billion times. That makesthem about 10,000 times more effective at Raman scattering thantraditional methods. Whenmolecules and materials scatter light, a small fraction of the lightint...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

...hair is approximately 80,000 nm). “The nanoporous nanoparticles are named after our Institute, termed ‘IBN-1?to ‘I...rof. Ying. Previous attempts at synthesizing such nanoparticles created particles that were limited in the type of structure, degree of structural ordering and rang...

Probing the promise and perils of nanoparticles

For all its promise, the prospect of using nanoparticles in biomedical applications and consumer products h...ose concerns by investigating how certain kinds of nanoparticles damage cell membranes---enough to cause cell death in some cases---and how the damage can be prevent...

Nanoscale Diagnostic Sets Sights on Alzheimer's

... more about the bio-bar-code technology : - Gold nanoparticles and bio-bar codes bring sensitive DNA detection - Nanoparticle-Based Bio–Bar Codes for the Ultrasensitive Detection of Proteins - Bio-Barcode Diagnostic Method Could Rival PCR If proven successful in further clinical studies, the procedure cou...

Nanoparticles offer new hope for detection and treatment

Specially designed nanoparticles can reveal tiny cancerous tumors that are invisibl...ice were injected with the nanoparticles. Because nanoparticles can be engineered to carry a variety of substances, they also may be able to deliver cancer-fighting...

Novel gene-silencing nanoparticles shown to inhibit Ewing's sarcoma

...vel delivery system that transports gene silencing nanoparticles into tumor cells has been shown to inhibit Ewing's...r binds to and condenses the engineered siRNA into nanoparticles that, in effect, form a protective shield around their precious genetic cargo. These nanoparticles, ...

Marine sponge yields nanoscale secrets

...ese exciting new results involving the use of gold nanoparticles is the cover story of the current issue of the scientific journal, Advanced Materials. The article is written by Daniel E. Morse, professor of molecular, cellular and developmental biology at UCSB, and director of the Institute for Collaborative Biot...

Findings have implications for tracking disease, drugs at the molecular level

...uced luminescence (MAIL). The most efficient gold nanoparticles could be observed at laser intensities lower than ...," he said. "We now have the ability to see single nanoparticles under conditions where people usually look at thousands or millions of stain molecules. This could a...

Using nanoparticles, in vivo gene therapy activates brain stem cells

Using customized nanoparticles that they developed, University at Buffalo scienti...ic genes to repair malfunctioning brain cells, the nanoparticles also provide promising models for studying the genetic mechanisms of brain disease. "Until now, no...

Breakthrough: Scientists create world's tiniest organic particles

...lleled uniformity and precision for making organic nanoparticles that will have profound implications in medicine and many other industries, including display technologies."Prior to this, no one else has fused the highly uniform and precise methods for fabricating transistors with the organic nanoparticle world," ...

New imaging technology shown to detect pancreatic inflammation in type 1 diabetes

... leakage can be detected with the help of magnetic nanoparticles (MNP) and magnetic resonance imaging (MRI). After being injected intravenously, these MNPs, which are minute particles of iron oxide, travel through the blood vessels of the body including the pancreas. If pancreatic vessels have become leaky from in...

Modifications render carbon nanotubes nontoxic

...hnology risks. "Carbon nanotubes are high-profile nanoparticles that are under consideration for dozens of applica...ity for SWNTs. "We now have two studies on carbon nanoparticles that show us how to make them dramatically less cytotoxic," said CBEN Executive Director Kevin Ausma...

'Smart' nanoprobes light up disease

...solves this longstanding problem by using emissive nanoparticles called quantum dots that give off light in the near-infrared (NIR), a rare portion of the spectrum that has no background component in biomedical imaging. Near-infrared light also passes harmlessly through skin, muscle and cartilage, so the new probe...

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