Bio & Medicine news

Nanoparticles for gene therapy improve

Nanotechnology / Bio & Medicine

Nov 06, 2009 | 5 / 5 (4) | 3

(PhysOrg.com) -- About five years ago, Professor Janet Sawicki at the Lankenau Institute in Pennsylvania read an article about nanoparticles developed by MIT's Robert Langer for gene therapy, the insertion ...

Magnetic nanoparticles to simultaneously diagnose, monitor and treat

Nanotechnology / Bio & Medicine

Nov 06, 2009 | not rated yet | 0

(PhysOrg.com) -- Whether it's magnetic nanoparticles (mNPs) giving an army of 'therapeutically armed' white blood cells direction to invade a deadly tumour's territory, or the use of mNPs to target specific nerve channels ...

Nanoparticles may cause DNA damage across a cellular barrier

Nanotechnology / Bio & Medicine

Nov 05, 2009 | 4.3 / 5 (9) | 1

(PhysOrg.com) -- Scientists have shown in the laboratory that metal nanoparticles damaged the DNA in cells on the other side of a cellular barrier. The research, by the University of Bristol, is published ...

Nanoparticles Detect and Purge Metastases in Lymph Nodes

Nanotechnology / Bio & Medicine

Oct 30, 2009 | 5 / 5 (6) | 0

Colonoscopy represents one of the great weapons against cancer. In one step, a physician can find precancerous lesions in the colon and then cut them out, an on-the-spot intervention that prevents cancer from developing. ...

Gold Nanoparticles Delivery Platinum Warheads to Tumors

Nanotechnology / Bio & Medicine

Oct 29, 2009 | 4.9 / 5 (7) | 2

(PhysOrg.com) -- Cisplatin is one of the most powerful and effective drugs for treating a wide variety of cancers, but serious side effects ultimately limit the drug's use and effectiveness. Now, however, researchers have ...

Next-generation microcapsules deliver 'chemicals on demand'

Nanotechnology / Bio & Medicine

Oct 28, 2009 | not rated yet | 0

Scientists in California are reporting development of a new generation of the microcapsules used in carbon-free copy paper, in which capsules burst and release ink with pressure from a pen. The new microcapsules ...

Knocking nanoparticles off the socks

Nanotechnology / Bio & Medicine

Oct 28, 2009 | 3 / 5 (2) | 0

Scientists in Switzerland are reporting results of one of the first studies on the release of silver nanoparticles from laundering those anti-odor, anti-bacterial socks now on the market. Their findings, scheduled ...

Study shows how carbon nanotubes can affect lining of the lungs

Nanotechnology / Bio & Medicine

Oct 25, 2009 | 4.8 / 5 (10) | 1

(PhysOrg.com) -- Carbon nanotubes are being considered for use in everything from sports equipment to medical applications, but a great deal remains unknown about whether these materials cause respiratory ...

Nanowire biocompatibility in the brain: So far so good

Nanotechnology / Bio & Medicine

Oct 22, 2009 | 5 / 5 (1) | 0

The biological safety of nanotechnology, in other words, how the body reacts to nanoparticles, is a hot topic. Researchers at Lund University in Sweden have managed for the first time to carry out successful experiments involving ...

Advance in 'nano-agriculture': Tiny stuff has huge effect on plant growth

Nanotechnology / Bio & Medicine

Oct 21, 2009 | 3.5 / 5 (4) | 1

With potential adverse health and environmental effects often in the news about nanotechnology, scientists in Arkansas are reporting that carbon nanotubes (CNTs) could have beneficial effects in agriculture.

Magnetic nanotags spot cancer in mice earlier than methods now in clinical use

Nanotechnology / Bio & Medicine

Oct 13, 2009 | 5 / 5 (8) | 0

Searching for biomarkers that can warn of diseases such as cancer while they are still in their earliest stage is likely to become far easier thanks to an innovative biosensor chip developed by Stanford University ...

Tiny technology may yield major finds -- and possible perils

Nanotechnology / Bio & Medicine

Oct 13, 2009 | 5 / 5 (7) | 3

Imagine a particle so small it would take a million of them to stretch across the period at the end of this sentence. Imagine such particles could help catch cancer cells floating in your bloodstream before they could metastasize ...

New nanotech sensor developed with medical, chemistry applications

Nanotechnology / Bio & Medicine

Oct 13, 2009 | 5 / 5 (1) | 0

Researchers at Oregon State University and other institutions have developed a new "plasmonic nanorod metamaterial" using extraordinarily tiny rods of gold that will have important applications in medical, biological and ...

Nanotech protection: Current safety equipment may not be adequate for nanoprotection

Nanotechnology / Bio & Medicine

Oct 13, 2009 | 5 / 5 (2) | 0

Writing in a forthcoming issue of the International Journal of Nanotechnology, Canadian engineers suggest that research is needed into the risks associated with the growing field of nanotechnology manufacture so that approp ...

Bioengineer uses nanoparticles to target drugs

Nanotechnology / Bio & Medicine

Oct 08, 2009 | not rated yet | 0

Clemson bioengineer Frank Alexis is designing new ways to target drugs and reduce the chances for side effects.

IBM Research Aims to Build Nanoscale DNA Sequencer (w/ Video)

Nanotechnology / Bio & Medicine

Oct 06, 2009 | 4.2 / 5 (11) | 4

(PhysOrg.com) -- In an effort to build a nanoscale DNA sequencer, IBM scientists are drilling nano-sized holes in computer-like chips and passing DNA strands through them in order to read the information contained ...

Rapid DNA Detection Quickly Diagnoses Infections

Nanotechnology / Bio & Medicine

Oct 05, 2009 | 4.8 / 5 (4) | 0

(PhysOrg.com) -- A new portable device can detect bacteria and help prevent the spread of infectious diseases. This new tool takes from 15 minutes to 2 hours to diagnose a patient for infectious diseases and ...

Models begin to unravel how single DNA strands combine

Nanotechnology / Bio & Medicine

Oct 05, 2009 | 5 / 5 (1) | 0

(PhysOrg.com) -- Using computer simulations, a team of University of Wisconsin-Madison researchers has identified some of the pathways through which single complementary strands of DNA interact and combine to form the double ...