How biosensors work

A biosensor is a device for the detection of an analyte that combines a biological component with a physicochemical detector component.It uses a living organism or biological molecules,
especially enzymes or antibodies, to detect the presence of chemicals.

Thin film transistors integrated with carbon nanotubes, nanowires and
three-dimensional nanostructures and
electronic communications modules
are the key elements of many types of wireless electronic biosensors. To detect biologically derived electronic signals, the nanostructures are linked together with proteins and peptides to
interface with soluble biologically relevant targets that can localize the target molecule in close vicinity of the nanostructures. The use of vertically aligned nanowire bundles provides a large surface area density and the base for many sensor surfaces
operating in parallel, allowing increased electrochemically active area for high sensitivity and high signal intensity.

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