News tagged with silicon dioxide

Detecting lethal diseases with rust and sand

The next big thing in medical diagnostics could be minutes particles of rust, iron oxide, coated with the material from which sand is formed, silicon dioxide. These magnetic nanoparticles, a mere 29 to 230 nanometers across, ...

Jan 31, 2011
5 / 5 (2) 0 | with audio podcast

Researchers produce ultra-light aerogel

A research team headed by Professor Gao Chao have developed ultra-light aerogel – it breaks the record of the world's lightest material with surprising flexibility and oil-absorption. This progress is published ...

Mar 25, 2013
4.9 / 5 (12) 4

Taming the wild phonon

(PhysOrg.com) -- Researchers at MIT and elsewhere have succeeded in creating a synthetic crystal that can very effectively control the transmission of heat -- stopping it in its tracks and reflecting it back. ...

Mar 22, 2010
4.9 / 5 (22) 9 | with audio podcast

Virus killer gets supercharged

A simple technique to make a common virus-killing material significantly more effective is a breakthrough from the Rice University labs of Andrew Barron and Qilin Li.

Jan 12, 2011
4.4 / 5 (9) 7 | with audio podcast

Technology in the extreme

Radio transmitters that can withstand temperatures of up to 900 C could soon be dropped into the depths of the earth to provide early warning of a volcanic eruption.

Sep 20, 2010
4.8 / 5 (5) 0 | with audio podcast

Sensitive nano oscillator can detect pathogens

(PhysOrg.com) -- By watching how energy moves across a tiny device akin to a springing diving board, Cornell researchers are a step closer to creating extraordinarily tiny sensors that can instantly recognize ...

Mar 11, 2010
5 / 5 (4) 0 | with audio podcast