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Electrochemistry and electrocatalysis with hemoglobin in hollow polyelectrolyte fibrous mats
Author(s) -
Song Min,
Jiang Hui,
Wang Xuemei,
Ge Liqin
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.32052
Subject(s) - electrochemistry , allylamine , polyelectrolyte , electrocatalyst , polystyrene , cyclic voltammetry , glassy carbon , materials science , chemical engineering , polymer chemistry , electrode , hydrochloride , chemistry , nuclear chemistry , polymer , organic chemistry , composite material , engineering
To form the PS/PAH fibers, positively charged poly(allylamine hydrochloride) (PAH) was coated on the surface of polystyrene (PS) fibers. Then, the ordered Hb‐PS/PAH film was prepared by the self‐assembly of hemoglobin (Hb) on the surface of fibers and characterized by electrochemical and spectroscopic methods. Cyclic voltammetry of the self‐assembled Hb‐PS/PAH films modified on glassy carbon electrode (GCE) displayed a quasi‐reversible electrochemical response in pH 5.0 buffers. Moreover, the Hb‐PS/PAH films also exhibited the electrocatalytic activity to the reduction of H 2 O 2 . Consequently, the Hb‐PS/PAH films are favorable for the direct electrochemistry of heme containing proteins, suggesting their potential application as the promising sensitive biosensor. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010