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Nanotechnology / Bio & Medicine news 1234

Chemists Create Cancer-Detecting Nanoparticles

June 13, 2008 | User rating: 4.6 / 5 after 10 vote(s) | User comments: 1

Magnetic resonance imaging (MRI) can be a doctor’s best friend for detecting a tumor in the body without resorting to surgery. MRI scans use pulses of magnetic waves and gauge the return signals to identify different types ...


Overcoming Drug Resistance—Nanoparticles Trigger Built-In Cell-Death Signal

June 13, 2008 | User rating: 4 / 5 after 9 vote(s) | User comments: 1

One of the most vexing problems in treating cancer is the propensity of tumors to develop resistance to a wide range of anticancer drugs. Over 70 percent of ovarian cancer patients, for example, have drug-resistant tumors ...


Growing use of nanomaterials spurs research to investigate possible downsides

June 13, 2008 | User rating: not shown ( 4 vote(s) ) | User comments: 1

Potential risks from the use of nanomaterials will be explored by three Arizona State University engineering faculty in a project supported by a $400,000 grant from the U.S.Department of Energy Office of Biological and Environmental ...


Nanoparticles aid bone growth

June 13, 2008 | User rating: 4.4 / 5 after 5 vote(s) | No comments yet

In the first study of its kind, bioengineers and bioscientists at Rice University and Radboud University in Nijmegen, Netherlands, have shown they can grow denser bone tissue by sprinkling stick-like nanoparticles throughout ...


Stripes key to nanoparticle drug delivery

June 09, 2008 | User rating: 4.4 / 5 after 14 vote(s) | No comments yet

In work that could at the same time impact the delivery of drugs and explain a biological mystery, MIT engineers have created the first synthetic nanoparticles that can penetrate a cell without poking a hole ...


Research measures movement of nanomaterials in simple model food chain

May 31, 2008 | User rating: 4.2 / 5 after 13 vote(s) | User comments: 1

New research in Nature Nanotechnology shows that while engineered nanomaterials can be transferred up the lowest levels of the food chain from single celled organisms to higher multicelled ones, the ...


Magnetic nanoparticles: Suitable for cancer therapy?

May 28, 2008 | User rating: not shown ( 2 vote(s) ) | User comments: 1

A measuring procedure developed in the Physikalisch-Technische Bundesanstalt (PTB) can help to investigate in some detail the behaviour of magnetic nanoparticles which are used for cancer therapy.


How buckyballs hurt cells

May 27, 2008 | User rating: 4.5 / 5 after 26 vote(s) | No comments yet

A new study into the potential health hazards of the revolutionary nano-sized particles known as ‘buckyballs’ predicts that the molecules are easily absorbed into animal cells, providing a possible explanation for how the ...


Failed HIV Drug Gets Second Chance with Addition of Gold Nanoparticles

May 23, 2008 | User rating: 3.9 / 5 after 21 vote(s) | User comments: 2

Researchers at North Carolina State University have discovered that adding tiny bits of gold to a failed HIV drug rekindle the drug's ability to stop the virus from invading the body's immune system.


Fluorescent nano-barcodes could revolutionize diagnostics

May 22, 2008 | User rating: 4.5 / 5 after 15 vote(s) | No comments yet

A new technology with research and clinical application including the early detection of disease has been invented and developed by University of Queensland researchers.


Nanotechnology in reverse uses cell to calibrate tools

May 15, 2008 | User rating: 4.1 / 5 after 9 vote(s) | No comments yet

Nanotechnology researchers at UC Davis have shown that they can use a red blood cell to calibrate a sensitive instrument, an atomic force microscope.


Researchers synthesize molecule with self-control

May 12, 2008 | User rating: 4.4 / 5 after 15 vote(s) | No comments yet

Plants have an ambivalent relationship with light. They need it to live, but too much light leads to the increased production of high-energy chemical intermediates that can injure or kill the plant.


Federal government taps NC State experts to explain nanotech risks

May 12, 2008 | User rating: 4.3 / 5 after 6 vote(s) | No comments yet

The arm of the federal government responsible for coordinating nanotechnology research and regulations across the country has called on experts from North Carolina State University to craft a white paper that will lay out ...


Environmental fate of nanoparticles depends on properties of water carrying them

May 02, 2008 | User rating: 4.3 / 5 after 11 vote(s) | No comments yet

The fate of carbon-based nanoparticles spilled into groundwater – and the ability of municipal filtration systems to remove the nanoparticles from drinking water – depend on subtle differences in the solution ...


Too much nanotechnology may be killing beneficial bacteria

April 29, 2008 | User rating: 4.6 / 5 after 16 vote(s) | No comments yet

Too much of a good thing could be harmful to the environment. For years, scientists have known about silver’s ability to kill harmful bacteria and, recently, have used this knowledge to create consumer products containing ...


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