- From: Graham Klyne <gk@ninebynine.org>
- Date: Mon, 07 Apr 2003 15:00:06 +0100
- To: www-talk@w3.org
[[ # "Spider Silk Delivers Finest Optical Fibres" New Scientist (03/19/03); Penman, Danny A team of engineers at the University of California at Riverside are using spider silk to make finer optical fibers that could be used to carry light in nanoscale optical circuits. The fibers are made by first coating the thread with tetraethyl orthosilicate, then burning it away it by baking, leaving behind a hollow silica tube 1 micrometer in diameter. The silk they use is from the giant orb-weaving spider of Madagascar, Nephila madagascariensis. The engineers are planning to apply the process to the thinnest known spider silk, which is produced by Stegodyphus pacificus and has a 10-nm diameter, which should yield a conduit about 2 nm in diameter. Such a development would be a major breakthrough in the field of photonics, while Bath University physicist Philip Russell thinks that the method will help in the construction of minute sensors that harness the unique "supramolecular" chemistry that takes place between substances enclosed in small spaces. Other potential applications include ramping up the resolution of optical microscopes, which Heriot-Watt University chemist Christopher Viney predicts "will open up whole new vistas for biologists." The USC-Riverside engineers' method will be detailed in an upcoming issue of the Journal of Materials Chemistry. http://www.newscientist.com/news/news.jsp?id=ns99993522 ]] ------------------- Graham Klyne <GK@NineByNine.org> PGP: 0FAA 69FF C083 000B A2E9 A131 01B9 1C7A DBCA CB5E
Received on Monday, 7 April 2003 12:40:28 UTC