New Trends in Biosensors for Organophosphorus Pesticides

Abstract

Biosensors are sensitive and can be used as disposable sensors for environmental control. These biosensors are based either on inhibition of acyl cholinesterases acetylcholinesterase or butyrylcholinesterase) by organophosphorus compounds or on inhibition of enzymes phosphatases (acid or alkaline) or on direct detection of organophosphorus compounds by organophosphorus hydrolase. The state-of-the-art of the three types of biosensors will be presented in this paper and a particular development will be done on our work on ENFET (Enzymatic Field Effect Transistor) biosensors.

Keywords

• Inhibition
• Acetylcholinesterase
• Butyrylcholinesterase
• Phosphatases
• Organophosphorus hydrolase
• Multivariate correspondence analysis