August 26th, 2006

homuncul

(no subject)

киборгизация: первые шаги



Charles Lieber and colleagues at Harvard University in Cambridge, Massachusetts, US, built a chip with 20-nanometre-wide silicon wires running across its surface. On top of the chip they grew rat neurons, which include axons, relatively long projections that transmit signals to other cells, and dendrites, shorter extensions that receive signals. The axons and dendrites formed connections with the nanowires – more than 50 connections per neuron. These connections were about the size of a natural synapse.

The researchers were able to watch signals as they passed down an individual axon, and to stop or enhance the signals by stimulating the axon with an electrical pulse.

If you could actually start to communicate with neurons in the way the brain itself does, you’re going to be able to do much more,” says Lieber.

 
Neuron forms links with silicon nanowires -- NewSciTech


Science,
Aug. 2006
Detection, Stimulation, and Inhibition of Neuronal Signals with High-Density Nanowire Transistor Arrays -- Abstract

Lieber Research Group



Scientists and philosophers gathered in Helsinki last week for TransVision, a conference about 'enhancing' humans. Kerri Smith talks to Nick Bostrom, director of the Future of Humanity Institute at the University of Oxford, UK, about what's on the table.

The modern make-over Science,  Aug. 2006


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