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Nanotechnology / Bio & Medicine news 1234

Study Details How Platinum Nanocages 'Cook' Cancer Cells

August 15, 2008 | User rating: 4.9 / 5 after 20 vote(s) | User comments: 2

Platinum-based anticancer agents have a long history as proven therapeutic agents, but their toxicity and short lifetime in the body and the ability of tumors to develop resistance to these drugs limit the ultimate utility ...


Slipping through cell walls, nanotubes deliver high-potency punch to cancer tumors in mice

August 14, 2008 | User rating: 4.6 / 5 after 18 vote(s) | User comments: 1

(PhysOrg.com) -- The problem with using a shotgun to kill a housefly is that even if you get the pest, you'll likely do a lot of damage to your home in the process. Hence the value of the more surgical flyswatter.


Carbon Nanotube-Coated Electrodes Improve Brain Readouts

August 12, 2008 | User rating: 4.5 / 5 after 20 vote(s) | User comments: 5

A research group has significantly improved the quality of brain-function measurements by coating metal neural electrodes with carbon nanotubes. Their work could potentially allow scientists to learn more ...


Dual-Mode Nanoparticles Image Tumors Using MRI and PET

August 15, 2008 | User rating: 3.9 / 5 after 8 vote(s) | No comments yet

Medical imaging represents one of the most used and useful procedures in the oncologist’s diagnostic toolkit, even though each of the most useful techniques—magnetic resonance imaging (MRI), computerized tomography x-ray ...


Scientists overcome nanotech hurdle

August 13, 2008 | User rating: 4.3 / 5 after 18 vote(s) | User comments: 6

When you make a new material on a nanoscale how can you see what you have made? A team lead by a Biotechnology and Biological Sciences research Council (BBSRC) fellow has made a significant step toward overcoming this major ...


Nano vaccine for hepatitis B shows promise for third world

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

Chronic hepatitis B infects 400 million people worldwide, many of them children. Even with three effective vaccines available, hepatitis B remains a stubborn, unrelenting health problem, especially in Africa and other developing ...


Shape, not just size, impacts effectiveness of emerging nanomedicine therapies

August 04, 2008 | User rating: 5 / 5 after 6 vote(s) | No comments yet

In the budding field of nanotechnology, scientists already know that size does matter. But now, researchers at the University of North Carolina at Chapel Hill have shown that shape matters even more — a finding that could ...


Nanoparticles + light = dead tumor cells

July 29, 2008 | User rating: 4.5 / 5 after 33 vote(s) | User comments: 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 ...


New disease-fighting nanoparticles look like miniature pastries

July 29, 2008 | User rating: 4.5 / 5 after 13 vote(s) | No comments yet

Ultra-miniature bialy-shaped particles — called nanobialys because they resemble tiny versions of the flat, onion-topped rolls popular in New York City — could soon be carrying medicinal compounds through patients' bloodstreams ...


Carbon Nanotubes Compromise the Functions of Certain Protozoa, Study Shows

June 18, 2008 | User rating: 4.7 / 5 after 36 vote(s) | User comments: 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, ...


Nanoparticles Detect Telomerase Activity

July 24, 2008 | User rating: 4.3 / 5 after 12 vote(s) | User comments: 4

Telomerase, an enzyme that prevents chromosomes from shortening when they divide, is widely suspected of playing a key role in making cancer cells immortal. Though researchers have developed a variety of methods for measuring ...


Holey Nanoparticles Create New Tumor Imaging and Therapeutic Agent

July 22, 2008 | User rating: 4.7 / 5 after 6 vote(s) | No comments yet

Using a polymer that has both water-soluble and water-insoluble regions, a team of investigators from the Siteman Center of Cancer Nanotechnology Excellence has created a nanoparticle shaped like a bialy, a close relative ...


Nanotechnology: Learning from past mistakes

July 21, 2008 | User rating: 3.6 / 5 after 5 vote(s) | User comments: 1

A new expert analysis in Nature Nanotechnology questions whether industry, government and scientists are successfully applying lessons learned from past technologies to ensure the safe and responsible development of ...


Using magnetic nanoparticles to combat cancer

July 16, 2008 | User rating: 4.7 / 5 after 20 vote(s) | User comments: 1

Scientists at Georgia Tech have developed a potential new treatment against cancer that attaches magnetic nanoparticles to cancer cells, allowing them to be captured and carried out of the body. The treatment, ...


Quantum Rod System May Safely 'Sneak' Drugs, Diagnostics into Brain

July 16, 2008 | User rating: 4.5 / 5 after 11 vote(s) | User comments: 3

(PhysOrg.com) -- A unique nanoparticle system developed by University at Buffalo scientists takes advantage of the versatility of bioconjugated quantum rods to ferry novel diagnostic and therapeutic agents ...


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