Bienzymatic <i>Acetylcholinesterase</i> and <i>Choline Oxidase</i> Immobilized Biosensor Based on a Phenyl Carboxylic Acid-Grafted Multiwalled Carbon Nanotube

<table>SEM images of the carbon plate as model electrode (a), MWNT-modified electrode (b), COOH/MWNT-modified electrode (c), and AChE-ChOx/COOH/MWNT-modified electrode (d).</table>

Advances in Materials Science and Engineering

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Figure 3: Bienzymatic <i>Acetylcholinesterase</i> and <i>Choline Oxidase</i> Immobilized Biosensor Based on a Phenyl Carboxylic Acid-Grafted Multiwalled Carbon Nanotube 

Figure 3 | Bienzymatic Acetylcholinesterase and Choline Oxidase Immobilized Biosensor Based on a Phenyl Carboxylic Acid-Grafted Multiwalled Carbon Nanotube 