Thursday 5 February 2009

Computer chips + neurons = Nerve repair?

Nerve's grown on a silicon chip

Edinburgh University has developed a technique where they are able to grow neurons in a fine detailed pattern on the surface of tiny computer chips. Sounds a bit science fiction right? Actually it’s a process that has been constantly researched and refined over a number of years. The ability to grow neurons means that damaged tissue can now be repaired or replaced in the body –possibly used for prosthetic development. For those that are further interested in the exact details of the research, it can be found by following the link stated below or it can be located in any suitable science journal.

Paper – Delivopoulos E, Murray AF, Macleod NK, Curtis JC. Guided growth of neurons and glia using microfabricated patterns of parylene-C on a SiO2 background. Biomaterials. 2008. 30 (11): Pages 2048 – 2058.

Just to provide a quick overview, the chip is imprinted with a certain pattern on the surface of the silicon chip and is then dipped in a specific mixture neurons and components such as proteins, growth factors that are needed for growth by the nerve cells. The use of circuitry can guide the growth of the cells and the tissue grown can be tailor made to suit each individual. It also means that the use of chips may eventually replace animal experiments – something which a lot of the general public object to but which is a necessary part of scientific development until a suitable alternative can be found.

As I am currently working in the neurosciences area, I think this could potentially be used to treat neurodegenerative disorders, where the nerve cells cease to function. A lot of research and perfection of the technique would be required before such ideas could be put to the test. But a part of me does wonder whether people will be open to such ideas and more importantly will the government provide funding for such ventures? I guess only time will tell.

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