Wednesday, 12 Dec, 2007 Science

Nanotubes Can be Produced from Bacteria


Scientists discovered that living bacteria can produce semiconducting nanotubes that have a great potential for their application in electronics, nanotechnology and other fields of material science.

Experts at the the University of California-Riverside and South Korea's Gwangju Institute of Science and Technology said that this scientific breakthrough might help in developing new nanoelectronic devices.

Nosang Myung, one of the researchers and UCR Associate Professor and postdoctoral researcher Bongyoung Yoo found that bacteria Shewanella forms arsenic-sulfide nanotubes that have unique characteristics similar to those of a metal, possessing electrical and photoconductive properties.

Nanotubes are known to be a basis for creating powerful electronics. Chemical manufacture that produces a huge range of electronic devices, computers and solar cells also becomes a thread to the environment with a considerable use of energy, and toxic chemicals left.

This was the first time when nanotubes were produced by biological means rather than chemical. The discovery may lead to production of less costly and eco-friendly electronic materials.

Scientists point out that each species of Shewanella might have individual implications for manufacturing properties.

The study is published in online edition of the Proceedings of the National Academy of Sciences.

Powered by

Add your comment:

antispam code