Tumbleweeds in the Bloodstream

[Whitters]

NASA Science News for October 28, 2004

Tiny sensors, shaped like tumbleweed and small enough to fit inside a blood vessel, might one day ride to space inside astronauts' bodies, warning the space travelers when radiation is damaging their cells.  This new technology, being developed by NASA-supported researchers, would improve health care on Earth, too.

FULL STORY at

http://science.nasa.gov/headlines/y2004/28oct_nanosensors.htm?list907772