Importance

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Abstract

Adjacent first and second transistors are integrated with a substrate. Each of the first and second transistors has a gate electrode, a source electrode, a drain electrode and a semiconductive channel formed of an organic material, the semiconductive channel electrically coupling the source electrode with the drain electrode. The source electrode of the first transistor is electrically coupled to the source electrode of the second transistor. A molecular receptor is bound directly to a surface of the semiconductive channel of the first transistor. A non-zero offset voltage, which produces equal channel currents in the semiconductive channels of the first and second transistors after a molecule has bound with the molecular receptor without a like binding event proximate to the second transistor, is sensed between the gate electrodes of the first and second transistors.

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First Claim