Nanotechnology brings new possibilities for the development of sensors, biosensors, and novel electrochemical bioassays. Nanoscale materials have been extensively used in a wide variety of configurations — as electrode surfaces to promote electrochemical reaction, as "wires" to enzymes connecting their redox centers to electrode surface, as nanobarcodes for biomolecules, or as tags to amplify the signal of a biorecognition event.

Nanomaterial-based electrochemical sensors have been used in many areas, including cancer diagnostics and the detection of infectious organisms. This book reviews important achievements in the field of nanomaterial-based electrochemical sensors and biosensors.