On top of the chip is a tiny channel the width of two human hairs into which DNA is fed.

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Cells are lined up like ants and passed one-by-one through a tiny fluid channel one-fourth the width of a human hair, and a digital camera sensor chip captures images of the cells as they pass over an array of nanoscale holes.

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Cells are lined up like ants and passed one by one through a tiny fluid channel one-fourth the width of a human hair, and a digital camera sensor chip captures images of the cells as they pass over an array of nanoscale holes.

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