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15
Nanowire Field-Effect Transistor Biosensors
Fumiaki Ishikawa, Xiaoli Wang, Noppadol Aroonyadet, and Chongwu Zhou
15.1 Introduction to Nanowire FET Biosensors
15.1.1 Basic Principles
Detection of chemical agents and biological species using nanostructured materials has
shown signicant progress in recent years, driven by the high demand for superior ana-
lytical tools in areas such as environmental monitoring, new drug screening, and disease
diagnosis. Various detection techniques have been proposed and demonstrated using a
wide variety of nanomaterials.
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Among such emerging technologies, detection of biomolecules using semiconducting
na