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 ?Protein-friendly' chip offers rapid disease testing

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Date posted: 29/02/2008

A device capable of spotting diseases in the tiniest drop of blood or urine has been developed by UK scientists. It is 10 times smaller than existing sensors and can detect a range of protein molecules associated with different diseases.

The electrodes are only about 10 micrometers apart and could ultimately be made even smaller say its creators, Christoph W?lti and Giles Davies and colleagues at the University of Leeds.

The team created peptide aptamers ? artificial antibodies that are very stable and bind easily to a specific proteins ? and attached them to their microscopic electrodes. When a target protein binds to an aptamer, the electrodes generate an electronic signal, immediately indicating the presence of the protein.

See the full Story via external site: technology.newscientist.com

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