Inclusion complexation of cyclodextrin polymer with benzoquinone and its application to enzyme electrodes
- 化学化工－已发表论文 
The effect of soluble alpha-cyclodextrin prepolymer(CD) on the redox behavior of benzoquinone/hydroquinone(BQ/HQ) system at a platinum electrode was studied and according to the voltammetric curves the inclusion complexation of the poly (alpha-cyclodextin) host with benzoquinone guest was discussed. The insoluble polymer (PCD) membrane, prepared from polycondensation of CD with glutaric dialdehyde, was used for the immobilization of glucose oxidase (GOD) so that a new second-genernation glucose electrode was obtained. Owing to the inclusion complexation, the benzoquinone as the electron acceptor of reduced GOD in the enzyme-containing polymer membrane has higher concentration, thereby faciliating the electron transfer of the immobilized enzyme. The kinetics of BQ reaction in the immobilized enzyme PCD/GOD matrix was determined.