|
|
Article: The logic to molecular computers. (single molecule used as "and" gate in logic circuit) (Brief Article)
- Article from:
- Science News
- Article date:
- July 24, 1993
CopyrightCOPYRIGHT 1993 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
Every pocket calculator or personal computer needs at least one thing to do its job: a logic system. A basic component of such microelectronic systems is the information gate, which takes in some signals and sends others out. Some gates open or close to allow signals through; others select one of two pathways, A "or" B, for a signal to travel along; a third kind opens both routes, A "and" B.
"And" gates are critical. No computer can run without them.
Breaking new ground in this area, a team of chemists from Queen's University in Belfast, Northern Ireland, led by A. Prasanna de Silva, reports in the July 1 NATURE the fabrication of a single molecule ...