Nanotechnology Applications for Clean Water

Chapter 26 Nanomaterial-Based Biosensors for Detection of Pesticides and Explosives

Jun Wang, Yuehe Lin

Pacific Northwest National Laboratory, Richland, WA, USA

1. Introduction 378

2. Nanomaterial-Based Biosensors for Pesticides 379

   1. Principle of Electrochemical Biosensor for Organophosphates 379

   2. Biosensor Based on ChO/AChE Bienzyme 380

   3. Biosensor Based on Layer-by-Layer Assembly of AChE on Carbon Nanotube 382

3. Nanoparticle-Based Electrochemical Immunoassay of TNT 385

   1. The Principle of Nanoparticle-Based TNT Sensor 385

   2. The Analytical Performance of TNT Sensor 386

4. Conclusions 388

Abstract

Nanomaterials have been increasingly used for the development of biosensors for environmental monitoring of toxic compounds because ...