Energy from Grapes
shpoffo writes "This article at BetterHumans.com talks about harvesting energy from grapes - enough to power small microchips that could be implanted in/attached to plants for monitoring/etc. Seems like it's just a piece of the larger picture emerging..."
this is just a glorified potato clock.
That was my first impression too -- stick copper and zinc wires into a grape and you get electricity -- but that's not what they're doing. The article is light on details, but using a pair of carbon rods (insert Simpsons ref here) they're digesting glucose and collecting a few microwatts as a product.
+1 Insightful? -1 wet-blanket-in-a-+1-Funny-thread?
--
Capable of producing only about 2.4 microwatts, the biofuel cell could be used to derive power from body fluids. For instance, it could also drive a tiny, autonomous sensor implanted near a wound after surgery to sense fluctuations in body temperature that might signal inflammation and infection.
It seems like a useful application.