Bio & Medicine news

Titanium Dioxide Nanoparticles Catalyze Brain Tumor Death

Sep 24, 2009 | 5 / 5 (5) | 6

(PhysOrg.com) -- Scientists from the U.S. Department of Energy’s (DOE) Argonne National Laboratory and the University of Chicago Medical Center’s Brain Tumor Center have developed a way to target brain cancer cells using ...

Magnetic Nanoworms and Nanocrystals Deliver siRNA to Tumors

Nanotechnology / Bio & Medicine

Sep 23, 2009 | not rated yet | 0

(PhysOrg.com) -- Small pieces of nucleic acid known as short interfering RNAs, or siRNAs, can turn off the production of specific proteins, a property that makes them one of the more promising new classes of anticancer drugs ...

Therapeutic nanoparticles give new meaning to sugar-coating medicine

Nanotechnology / Bio & Medicine

Sep 22, 2009 | not rated yet | 0

(PhysOrg.com) -- A research team at the National Institute of Standards and Technology studying sugar-coated nanoparticles for use as a possible cancer therapy has uncovered a delicate balancing act that makes ...

New discovery reveals fate of nanoparticles in human cells

Nanotechnology / Bio & Medicine

Sep 22, 2009 | 2.7 / 5 (6) | 0

Scientists funded by the Biotechnology and Biological Sciences Research Council (BBSRC) have uncovered what happens to biomimetic nanoparticles when they enter human cells. They found that the important proteins that make ...

Topical erectile dysfunction therapy shows promise (w/ Video)

Nanotechnology / Bio & Medicine

Sep 19, 2009 | 4.3 / 5 (7) | 0

An innovative drug-delivery system - nanoparticles encapsulating nitric oxide or prescription drugs - shows promise for topical treatment of erectile dysfunction (ED), according to a new study by scientists ...

Nanotube risk assessment

Nanotechnology / Bio & Medicine

Sep 18, 2009 | 3.8 / 5 (4) | 0

Italian scientists suggest that we need a much more detailed toxicological approach to hazard assessment before judgement regarding the long-term safety of carbon nanotubes can be made. They outline their results in the International Jo ...

Using magnetism to turn drugs on and off

Nanotechnology / Bio & Medicine

Sep 18, 2009 | 4.8 / 5 (4) | 0

(PhysOrg.com) -- Many medical conditions, such as chronic pain, cancer and diabetes, require medications that cannot be taken orally, but must be dosed intermittently, on an as-needed basis, over a long period ...

Nanoparticles could pose threat to humans: scientists

Nanotechnology / Bio & Medicine

Sep 16, 2009 | 3.6 / 5 (11) | 16

They can make fabric resistant to stains, improve the taste of food and help drug research, but nanoparticles could also pose a danger to human health, experts warned Wednesday.

DNA origami

Nanotechnology / Bio & Medicine

Sep 16, 2009 | 3.8 / 5 (5) | 0

Researchers from Brigham Young University found how to shape customized segments of DNA into tiny letters that spell "BYU." This new method of DNA origami will appear in the aptly titled journal Nano Letters.

Anticancer nanotech

Nanotechnology / Bio & Medicine

Sep 16, 2009 | not rated yet | 0

Tiny particles of albumin, a protein found in the blood, can be used to carry radioactive isotopes to the site of a cancerous tumour in the body and so avoid many of the side-effects of conventional radiotherapy.

Nanoparticle treatment for burns curbs infection, reduces inflammation

Nanotechnology / Bio & Medicine

Sep 14, 2009 | not rated yet | 0

Treating second-degree burns with a nanoemulsion lotion sharply curbs bacterial growth and reduces inflammation that otherwise can jeopardize recovery, University of Michigan scientists have shown in initial laboratory studies.

When Nano May Not Be Nano

Nanotechnology / Bio & Medicine

Sep 13, 2009 | 3.3 / 5 (8) | 3

(PhysOrg.com) -- The same properties of nanoparticles that make them so appealing to manufacturers may also have negative effects on the environment and human health. However, little is known which particles ...

Researchers develop drug delivery system using nanoparticles and lasers

Nanotechnology / Bio & Medicine

Sep 10, 2009 | not rated yet | 1

Researchers at UC Santa Barbara have developed a new way to deliver drugs into cancer cells by exposing them briefly to a non-harmful laser. Their results are published in a recent article in ACS Nano, a jour ...

Toward a nanomedicine for brain cancer

Nanotechnology / Bio & Medicine

Sep 09, 2009 | 5 / 5 (1) | 0

In an advance toward better treatments for the most serious form of brain cancer, scientists in Illinois are reporting development of the first nanoparticles that seek out and destroy brain cancer cells without ...

Scientists Build Nanostructures out of Single DNA Strands

Nanotechnology / Bio & Medicine

Sep 08, 2009 | 5 / 5 (4) | 5

(PhysOrg.com) -- With its unique double-helical structure, DNA has the ability to be used as a programmable building material to construct designer nanoscale architectures. Complex DNA architectures could ...