Importance

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Abstract

Devices for performing active biological operations utilize various structures to advantageously collect and provide charged biological materials to an array of microlocations. An active biological matrix device includes an array of unit cells, each unit cell including a variable current control element, a select switch, and a return electrode. The output of the select switch is preferably adapted to contact a conductive solution including charged biological materials. The return electrode is preferably connected to a second potential and adapted to contact the conductive solution. In the presence of the conductive solution, current is provided between the return electrode and the output of the select switch. The variable current control element includes a control element that is adapted to receive a first control signal via, preferably, a first column line. The select switch includes a control element that is adapted to receive a second control signal via, preferably, a first row line. In another aspect, a current control system is used with a unit cell circuit to variably provide current between a first electrode and the return electrode.

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First Claim