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December 4th, 2007
Detecting the presence of specific genes in a DNA sample can be like looking for a needle in a haystack. Now scientists have demonstrated a new process that could make the task far easier - it's all done by wiring a DNA strand up to a pair of nanotube electrodes and feeding electricity through it.
Researchers from Florida International University, US; Pohang University of Science and Technology, Korea; and the National Institute of Genetics, Japan, took a single-walled carbon nanotube and deposited titanium and gold at either end to create a pair of electrical contacts.
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