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Switchable Biosensor Controlled by Biocatalytic Process
Author(s) -
Basso Caroline R.,
Santos Bruna L.,
Pedrosa Valber A.
Publication year - 2013
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.201300194
Subject(s) - biosensor , indium tin oxide , methacrylate , electrode , chemistry , polymer , swelling , chemical engineering , oxide , materials science , combinatorial chemistry , polymer chemistry , nanotechnology , organic chemistry , engineering , copolymer
The poly(dimethylamino methacrylate) (PDMAEMA) brush‐modified indium tin oxide (ITO) electrode was used to test the switch properties of interfacial activity caused by bioelectrochemical signals. The swelling of the polymer brushes increased when the medium’s pH changed from alkaline to acid after glucose was added to the system. A pH change generated in situ by means of biocatalytic reactions enabled bioelectrocatalytic interface’s reversible activation.