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

Nov 20, 2009 | 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 ...

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 ...

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 ...

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 ...

Magnetism Turns Drug Release On and Off

Nanotechnology / Bio & Medicine

Oct 30, 2009 | 5 / 5 (1) | 0

Many medical conditions, such as cancer, diabetes and chronic pain, require medications that cannot be taken orally, but must be dosed intermittently, on an as-needed basis, over a long period of time. A few delivery techniques ...

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 ...

findNano app puts nanotech in your pocket

Nanotechnology / Bio & Medicine

Nov 12, 2009 | 5 / 5 (1) | 0

The Project on Emerging Nanotechnologies (PEN) has developed findNano, an application for Apple's iPhone and iPod Touch that lets users discover and determine whether consumer products are nanotechnology-enabled. Nanotechnology, ...

Magnetic nanoparticles to simultaneously diagnose, monitor and treat

Nanotechnology / Bio & Medicine

Nov 06, 2009 | not rated yet | 0

(PhysOrg.com) -- Whether it's magnetic nanoparticles (mNPs) giving an army of 'therapeutically armed' white blood cells direction to invade a deadly tumour's territory, or the use of mNPs to target specific nerve channels ...

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 ...