http://worldcat.org/entity/work/id/57472707

Fabrication and characterization of polypyrrole/glucose oxidase electrode on a microfabricated capillary electrophoresis chip

Research on lab-on-a-chip devices fabricated by traditional microfabrication techniques are gaining importance in the field of analytical chemistry. In particular there is an increasing demand for miniaturized biosensors based on enzymes owing to their applications in clinical analysis. With respect to Capillary Electrophoresis (CE) microchips, enzymes can impart a greater degree of selectivity. The technique of electrochemical polymerization was used to immobilize glucose oxidase on the CE microchip. Polypyrrole was used an immobilization matrix. The second chapter describes the experimental procedure for the immobilization of glucose oxidase on the CE microchip device. A two-step procedure was employed, which involved a thin layer of polypyrrole followed by a thick layer of polypyrrole/glucose oxidase film. The third chapter deals with the results obtained using a CE microchip.

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