Archive: 10/11/2011

How to count nanoparticles

Nanoparticles of a substance can be counted and the size distribution can be determined by dispersing the nanoparticles into a gas. But some nanoparticles tend to aggregate when the surrounding conditions change. Scientists ...

Oct 11, 2011 4 / 5 (1) 0

Light can detect pre-cancerous colon cells

After demonstrating that light accurately detected pre-cancerous cells in the lining of the esophagus, Duke University bioengineers turned their technology to the colon and have achieved similar results in a series of preliminary ...

Oct 11, 2011 5 / 5 (2) 1 | with audio podcast

Social media companies 'friend' politics

(AP) -- Social media companies have "friended" the 2012 presidential contest at a level almost unimaginable just four years ago, hosting debates and sponsoring presidential town halls while remaining indispensable ...

Oct 11, 2011 not rated yet 1