Top Story: Biosensor benefits

conceptual image showing DNA attaching to carbon nanotubes

New biosensor benefits from
melding of carbon nanotubes, DNA

November 17, 2011
By Brian Wallheimer

Purdue University scientists have developed a method for stacking synthetic DNA and carbon nanotubes onto a biosensor electrode, a development that may lead to more accurate measurements for research related to diabetes and other diseases.

Standard sensors employ metal electrodes coated with enzymes that react with compounds and produce an electrical signal that can be measured. But the inefficiency of those sensors leads to imperfect measurements.

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