Bio & Medicine news

Molecules autonomously propelled by polymerizing DNA strands

Sep 06, 2007 | 4.4 / 5 (41) | 0

Scientists from the California Institute of Technology have fabricated a motor that runs autonomously, and is powered only by the free energy of DNA hybridization. The molecular motor was inspired by bacterial ...

Nanoparticles can damage DNA, increase cancer risk

Nanotechnology / Bio & Medicine

Apr 17, 2007 | 4.5 / 5 (39) | 0

Tissue 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 ...

Nanoparticles Target Multiple Cancer Genes, Shrink Tumors More Effectively

Nanotechnology / Bio & Medicine

Oct 28, 2008 | 4.7 / 5 (37) | 0

(PhysOrg.com) -- Nanoparticles filled with small interfering RNA (siRNA) molecules targeting two genes that trigger melanoma have shown that they can inhibit the development of melanoma, the most dangerous type of skin cancer. ...

Researchers use laser, nanotechnology to rapidly detect viruses

Nanotechnology / Bio & Medicine

Nov 15, 2006 | 4.1 / 5 (42) | 0

Waiting a day or more to get lab results back from the doctor's office soon could become a thing of a past. Using nanotechnology, a team of University of Georgia researchers has developed a diagnostic test that can detect ...

As nanotech goes mainstream, 'toxic socks' raise concerns

Nanotechnology / Bio & Medicine

Apr 07, 2008 | 4.4 / 5 (39) | 5

Nanotechnology is now available in a store near you. Valued for it’s antibacterial and odor-fighting properties, nanoparticle silver is becoming the star attraction in a range of products from socks to bandages ...

Carbon Nanotubes Compromise the Functions of Certain Protozoa, Study Shows

Nanotechnology / Bio & Medicine

Jun 18, 2008 | 4.7 / 5 (36) | 3

A new study by researchers from the University of Waterloo in Ontario, Canada, hints that carbon nanotubes may be toxic to microorganisms. When cultures of a certain key protozoan, a single-cell organism, ...

Radio Waves Fire Up Nanotubes Embedded in Tumors, Destroying Liver Cancer

Nanotechnology / Bio & Medicine

Dec 03, 2007 | 4.7 / 5 (36) | 0

Cancer cells treated with carbon nanotubes can be destroyed by noninvasive radio waves that heat up the nanotubes while sparing untreated tissue, a research team led by scientists at The University of Texas M.D. Anderson ...

Using living cells as nanotechnology factories

Nanotechnology / Bio & Medicine

Oct 08, 2008 | 4.9 / 5 (34) | 2

In the tiny realm of nanotechnology, scientists have used a wide variety of materials to build atomic scale structures. But just as in the construction business, nanotechnology researchers can often be limited by the amount ...

Nanoparticles Delivery of 'Suicide DNA' Kills Prostate Tumors

Nanotechnology / Bio & Medicine

May 22, 2007 | 4.8 / 5 (34) | 0

Using nanoparticles developed by members of the Alliance for Nanotechnology in Cancer, a team of investigators at the Lankenau Institute for Medical Research, in Philadelphia, has developed a DNA-based therapeutic agent that ...

Developing Artificial Retina: Electric Link Between Neurons, Light-Sensitive Nanoparticle Films Created

Nanotechnology / Bio & Medicine

Feb 27, 2007 | 4.5 / 5 (35) | 0

The world's first direct electrical link between nerve cells and photovoltaic nanoparticle films has been achieved by researchers at the University of Texas Medical Branch at Galveston (UTMB) and the University of Michigan. ...

Nanoparticles + light = dead tumor cells

Nanotechnology / Bio & Medicine

Jul 29, 2008 | 4.5 / 5 (34) | 3

Medical physicists at the University of Virginia have created a novel way to kill tumor cells using nanoparticles and light. The technique, devised by Wensha Yang, an instructor in radiation oncology at the University of ...

Radio waves fire up nanotubes embedded in tumors, destroying liver cancer

Nanotechnology / Bio & Medicine

Nov 01, 2007 | 4.8 / 5 (31) | 0

Cancer cells treated with carbon nanotubes can be destroyed by non-invasive radio waves that heat up the nanotubes while sparing untreated tissue, a research team led by scientists at The University of Texas M. D. Anderson ...

Researchers discover way to see how a drug attaches to a cell

Nanotechnology / Bio & Medicine

Nov 13, 2006 | 4.2 / 5 (36) | 0

Sandia National Laboratories researchers John Shelnutt and Yujiang Song have discovered a better way to see where a drug attaches to a cell through a new process that produces novel hollow platinum nanostructures.

Nanotechnology innovation may revolutionize gene detection in a single cell

Nanotechnology / Bio & Medicine

Jan 10, 2008 | 4.4 / 5 (34) | 1

Scientists at Arizona State University’s Biodesign Institute have developed the world’s first gene detection platform made up entirely from self-assembled DNA nanostructures. The results, appearing in the ...

Nanotube-producing bacteria show manufacturing promise

Nanotechnology / Bio & Medicine

Dec 07, 2007 | 4.7 / 5 (32) | 0

Two engineers at the University of California, Riverside are part of a binational team that has found semiconducting nanotubes produced by living bacteria – a discovery that could help in the creation of a ...