Article | REF: R421 V1

Biochemical sensors

Author: Marc DEBLIQUY

Publication date: September 10, 2010

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1. General

According to Gronow , a biosensor is an analytical tool or system consisting of an immobilized biological compound, called a "ligand", connected to a transducer that transforms the biochemical signal into a quantifiable physical signal. According to the International Union of Pure and Applied Chemistry (IUPAC), a biosensor must be small and compact, have a reversible signal, give precise determinations (on-off reactions) and establish a real connection between the biological material and the transducer.

In very general terms (figure 1...

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