Nanowire-Based Chemical and Biological Sensor Arrays

A continuing effort that supplements and complements the one summarized in the immediately preceding article is dedicated to the development of nanowire-based sensor arrays, with emphasis on maximizing the utility of such arrays for real-time sensing of molecular species associated with chemical and biological threats. Like the sensors described in the immediately preceding article, most of these sensors are based on chemically functionalized semiconductor nanowires that are parts of fieldeffect transistors. In addition, some of these sensors are based on piezoelectric nanowire resonators.