Precision control of DNA separation using an electric field
Wednesday, June 25, 2008 - 09:49
in Physics & Chemistry
An electric voltage can be used to propel DNA molecules through a channel a few nanometres deep, or to stop them in their tracks. In a strong electric field the molecules judder along the channel, while in weaker fields they move more smoothly. This enables DNA fragments to be 'captured' on a chip and separated for analysis...
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