A new device can quickly detect a DNA molecule. The method involves using a microchannel and a nano-electrode. The microchannel causes DNA strand unwinds and passage through a tiny hole that contains electrodes. The electrodes are separated by a distance of a few nanometers, which is used to differentiate electrically tunnel each base that makes up the DNA chain.
The prototype of the article in question does not have the necessary electronic equipment to identify the bases, but according to the authors it can be done using more sophisticated equipment that have been already demonstrated by other researchers.
The potential impact of this technology is that a DNA sequence can be read so much faster so far, possibly in a matter of seconds, bringing to reality the equipment used in the movie Gattaca .
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