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New nanosize detector picks through DNA

Researchers have developed a new technology for rapidly distinguishing between almost identical DNA molecules.

The highly sensitive device, called a nanopore detector, might eventually be able to sort through DNA and identify a small variation that predisposes a person to some disease. The technique might even permit DNA sequencing at unprecedented speeds, report Wenonah Vercoutere and her colleagues at the University of California, Santa Cruz in the March Nature Biotechnology.

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