Bio & Medicine news

Nanoparticles used in common household items caused genetic damage in mice

Nov 16, 2009 | 4.7 / 5 (22) | 11

Titanium dioxide (TiO2) nanoparticles, found in everything from cosmetics to sunscreen to paint to vitamins, caused systemic genetic damage in mice, according to a comprehensive study conducted by researchers at UCLA's Jonsson ...

Nano-Scale Drug Delivery For Chemotherapy

Nanotechnology / Bio & Medicine

Oct 31, 2009 | 4.7 / 5 (12) | 1

(PhysOrg.com) -- Going smaller could bring better results, especially when it comes to cancer-fighting drugs.

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 ...

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 ...

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 ...

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. ...

Nanoparticles for gene therapy improve

Nanotechnology / Bio & Medicine

Nov 06, 2009 | 5 / 5 (5) | 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 ...

Two-In-One Punch Knocks Out Drug Resistant Cancer Cells

Nanotechnology / Bio & Medicine

Nov 04, 2009 | 5 / 5 (4) | 0

(PhysOrg.com) -- Cancer cells, like bacteria, can develop resistance to drug therapy, leading to relapse of disease. One approach showing promise in overcoming multidrug resistance in tumors is to combine two different anticancer ...

Findings show nanomedicine promising for treating spinal cord injuries

Nanotechnology / Bio & Medicine

Nov 08, 2009 | 4.5 / 5 (4) | 0

(PhysOrg.com) -- Researchers at Purdue University have discovered a new approach for repairing damaged nerve fibers in spinal cord injuries using nano-spheres that could be injected into the blood shortly ...

Nanostructured Integrated Circuit Detects Type and Severity of Cancer

Nanotechnology / Bio & Medicine

Nov 03, 2009 | 5 / 5 (3) | 0

(PhysOrg.com) -- A team of investigators from the University of Toronto have used nanomaterials to develop an inexpensive microchip sensitive enough to quickly determine the type and severity of a patient's cancer so that ...

Small nanoparticles bring big improvement to medical imaging

Nanotechnology / Bio & Medicine

Nov 18, 2009 | 5 / 5 (3) | 0

If you're watching the complex processes in a living cell, it is easy to miss something important—especially if you are watching changes that take a long time to unfold and require high-spatial-resolution ...

A Tiny Cage of Gold Responds to Light, Opening to Empty Its Contents

Nanotechnology / Bio & Medicine

Nov 19, 2009 | 5 / 5 (3) | 0

(PhysOrg.com) -- Researchers at Washington University in St. Louis have developed a polymer-coated gold nanocage that not only opens in response to light to release a small amount of a drug payload, but then closes when the ...

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

Nanotechnology / Bio & Medicine

Oct 21, 2009 | 3.5 / 5 (4) | 2

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.

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 ...

Magnetic Nanotags Spot Cancer in Mice Earlier Than Current Methods

Nanotechnology / Bio & Medicine

Nov 17, 2009 | 3 / 5 (2) | 0

(PhysOrg.com) -- 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 ...