Toward pH-controllable bioelectrocatalysis for hydrogen peroxide based on polymer brushes
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Data
2013-04-01
Autores
Antonio, Tamara R.T.A. [UNESP]
Cabral, Murilo F.
Cesarino, Ivana
MacHado, Sergio A.S.
Pedrosa, Valber A. [UNESP]
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Resumo
In the present work, a biosensor was built with smart material based on polymer brushes. The biosensor demonstrated a pH-sensitive on-off property, and it was further used to control or modulate the electrochemical responses of the biosensor. This property could be used to realize pH-controlled electrochemical reaction of hydrogen peroxide and HRP immobilized on polymer brushes. The composite film also showed excellent amperometric i-t response toward hydrogen peroxide in the concentration range of 0-13 μM. In future, this platform might be used for self-regulating targeted diagnostic, drug delivery and biofuel cell based on controllable bioelectrocatalysis. © 2013 Elsevier B.V.
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Palavras-chave
Enzymatic biosensor, Polymer brushes, Stimuli-responsive materials, Amperometric, Bioelectro-catalysis, Concentration ranges, Electrochemical reactions, Electrochemical response, pH sensitive on offs, Composite films, Drug delivery, Functional polymers, Hydrogen peroxide, Peroxides, Biosensors
Como citar
Electrochemistry Communications, v. 29, p. 41-44.