SENSING SYSTEM

摘要

A method of functionalizing a nanowire (104) in a CHEMFET sensing system (102) is described. The nanowire being connected at one end to a first electrode (108) and at an opposite end to a second electrode (110). The method may include gating current at a pre-determined location of the nanowire so that a segment of the nanowire is electrically disconnected from the second electrode but remains electrically connected to the first electrode (204); then applying a potential to the first electrode in order to produce a charge on an exposed area of the nanowire segment (206); and contacting the nanowire segment with a solution configured to functionalize the charged exposed area of the nanowire segment with a functional agent (208).