Patent ID: 8093667

Claim:
An apparatus for detecting an analyte, comprising: a substrate; a first field effect transistor (FET), the first FET comprising a source, a drain, a gate and a channel, the first FET being coupled to the substrate, and a carrier mobility of the channel changing in response to a mechanical stress exerted on the channel; a first flexible-gate electrode mechanically coupled to the gate, the first flexible-gate electrode extending from the substrate, and being operable to flex in response to mechanical stress and exert a mechanical stress on the channel of the first FET; and an analyte-sensitive material coupled to an outside surface of the first flexible-gate electrode, the analyte sensitive material being operable to react to an analyte and generate a mechanical stress that flexes the first flexible-gate electrode and induces a mechanical stress on the channel of the first FET that changes the carrier mobility of the channel.