A more sensitive sensor using nano-sized carbon tubes

March 23, 2010 | Source: Physorg.com

Miniature sensors that are able to sense the movement of individual atoms — 100 times more sensitive than any sensor device on the market today — are being developed by Tel Aviv University researchers.

The device uses carbon nanotubes that arrange themselves on a surface of a silicon chip. Small deformities in the crystal structure of the nanotubes generate a piezoelectric voltage that can be used to accurately sense tiny movements and changes in gravity.

They could for example be coated onto prosthetic limbs, inserted into new video games for more exciting play, and used by the auto industry to detect a potential collision before it becomes fatal.