Patent ID: 8115198

Claim:
An array of field-effect transistors for the detection of analytes, each transistor of the array comprising: a gate, a source electrode and a drain electrode, said electrodes being formed in a conducting material, and a nanotube or nanowire semiconductor element forming a channel of a transistor, said element being connected at one end to the source electrode and at the other end to the drain electrode, said source electrode, and said drain electrode, respectively forming with the channel a first junction and a second junction, wherein said array comprises at least two differentiated transistors, wherein a first of said at least two differentiated transistors has a source and a drain formed of a first material, wherein a second of said at least two differentiated transistors has a source and a drain formed of a second material, wherein said first material and said second material are different conductive materials, said transistors each including an exposed detection zone comprising one or both of said first and second junctions.