Schematic2 (IMAGE)

University of Massachusetts Amherst

Schematic2

Caption

A stable pH gradient is generated between a pair of biased graphene microelectrodes. Molecules (red particles) are focused into a narrow band—the focusing plane—between the microelectrodes upon the pH-gradient generation. The focused molecules are detected at high sensitivity by pre-placing specific recognizers (green particles) at the focusing plane.

Credit

UMass Amherst

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