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Electroanalytical Properties of ITO Electrodes Modified with Environment‐Sensitive Poly( N ‐isopropylacrylamide) Gel and Prussian Blue
Author(s) -
Karbarz Marcin,
Gniadek Marianna,
Stojek Zbigniew
Publication year - 2009
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200804544
Subject(s) - prussian blue , glucose oxidase , electrode , hydrogen peroxide , poly(n isopropylacrylamide) , chemistry , inorganic chemistry , materials science , chemical engineering , polymer chemistry , electrochemistry , organic chemistry , polymer , copolymer , engineering
It has been shown that ITO electrodes could be modified with a volume‐phase‐transition gel based on poly( N ‐isopropylacrylamide) cross‐linked with N,N ′‐methylenebisacrylamide. Prussian blue (PB) was deposited electrochemically inside the gel while glucose oxidase was added at the time of electropolymerization. The electrocatalytic activity of glucose oxidase towards the oxidation of glucose (measured as the reduction current of hydrogen peroxide) was strongly depressed by the shrinking process. Since the volume phase transition triggered by the temperature change is reversible the obtained change in the enzyme activity may be useful for getting a switchable system.