Otro
Toward pH-controllable bioelectrocatalysis for hydrogen peroxide based on polymer brushes
Registro en:
Electrochemistry Communications, v. 29, p. 41-44.
1388-2481
10.1016/j.elecom.2012.12.026
WOS:000316531700011
2-s2.0-84873434066
Autor
Antonio, Tamara R.T.A.
Cabral, Murilo F.
Cesarino, Ivana
MacHado, Sergio A.S.
Pedrosa, Valber A.
Resumen
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.