Enhanced response induced by polyelectrolyte-functionalized ionic liquid in glucose biosensor based on sol–gel organic–inorganic hybrid material

In this work, a polyelectrolyte-functionalized ionic liquid (PFIL) was firstly incorporated into a sol–gel organic–inorganic hybrid material (PFIL/sol–gel). This new composite material was used to immobilize glucose oxidase on a glassy carbon electrode. An enhanced current response towards glucose w...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 2007-09, Vol.608 (1), p.78-83
Main Authors: Yang, Fan, Jiao, Liansheng, Shen, Yanfei, Xu, Xiaoyu, Zhang, Yuanjian, Niu, Li
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biosensor
Biosensors
Biotechnology
Fundamental and applied biological sciences. Psychology
Glucose oxidase
Ionic liquid
Methods. Procedures. Technologies
Polyelectrolyte
Sol–gel
Various methods and equipments
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Summary:In this work, a polyelectrolyte-functionalized ionic liquid (PFIL) was firstly incorporated into a sol–gel organic–inorganic hybrid material (PFIL/sol–gel). This new composite material was used to immobilize glucose oxidase on a glassy carbon electrode. An enhanced current response towards glucose was obtained, relative to a control case without PFIL. In addition, chronoamperometry showed that electroactive mediators diffused at a rate 10 times higher in the apparent diffusion coefficient in PFIL-containing matrices. These findings suggest a potential application in bioelectroanalytical chemistry.
ISSN:1572-6657
1873-2569
DOI:10.1016/j.jelechem.2007.05.004