Researchers glue silicon chips to neurons -- and they talk to each other!
Scientists have used a protein to glue silicon
chips to mammalian neurons -- and they communicate.
European researchers have created an interface between mammalian neurons and silicon chips. The development is a crucial first step in the development of advanced technologies that combine silicon circuits with a mammal’s nervous system. The ultimate applications are potentially limitless.
In the long term it will possibly enable the creation of very sophisticated neural prostheses to combat neurological disorders. What’s more, it could allow the creation of organic computers that use living neurons as their CPU.
With the help of German microchip company Infineon, NACHIP placed 16,384 transistors and hundreds of capacitors on a chip just 1mm squared in size. The group had to find appropriate materials and refine the topology of the chip to make the connection with neurons possible.
Biologically NACHIP uses special proteins found in the brain to essentially glue the neurons to the chip. These proteins act as more than a simple adhesive, however. “They also provided the link between ionic channels of the neurons and semiconductor material in a way that neural electrical signals could be passed to the silicon chip,” says Vassanelli.
Once there, that signal can be recorded using the chip’s transistors. What’s more, the neurons can also be stimulated through the capacitors. This is what enables the two-way communications.
Not a bad start. If we can deal with the warts who fear technology more than ethics, this might get to where it’s useful.
Posted: Wed - March 29, 2006 at 06:01 AM