By Kurt Kleiner, Technology Review
A prototype sensor consumes just a few nanowatts and could someday take pressure readings from the eye. A new wireless computer sensor just a cubic millimeter in size could eventually be implanted in the eyes of people with glaucoma, taking pressure readings 24 hours a day and transmitting the data to doctors. The new device packs a processor, memory, a pressure sensor, a solar cell, a thin-film lithium battery, and a transmitter into a tiny glass rectangle. University of Michigan researchers reported on the device earlier this week at the International Solid-State Circuits Conference in San Francisco.
http://www.technologyreview.com/computing/32439/?p1=A4&a=f
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