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 ...

When It Comes to Drug Delivery, Size Matters

Nanotechnology / Bio & Medicine

17 hours ago | 5 / 5 (1) | 0

(PhysOrg.com) -- One of the great promises of nanotechnologies lies in its ability to create drug-containing nanoparticles decorated with targeting molecules that recognize and bind to cancer cells, providing drug delivery ...

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 ...

Detecting the Undetectable in Prostate Cancer Testing

Nanotechnology / Bio & Medicine

Nov 18, 2009 | 4 / 5 (1) | 1

(PhysOrg.com) -- A team of Northwestern University researchers, using an extremely sensitive nanotechnology-based tool known as the biobarcode system, has detected previously undetectable levels of prostate-specific antigen ...

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 ...

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 ...