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Electrochemical Investigation of Myoglobin in Layer‐by‐Layer Films Assembled with Sulfonated‐β‐Cyclodextrin
Author(s) -
Li Jueyu,
Liu Dan,
Tian Lei,
Yang Lingzhu,
Hu Naifei
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.200900308
Subject(s) - myoglobin , cyclodextrin , hydrogen peroxide , electrochemistry , layer by layer , chemistry , layer (electronics) , electrode , nuclear chemistry , inorganic chemistry , polymer chemistry , chemical engineering , organic chemistry , engineering
In this work, myoglobin (Mb) and sulfonated‐β‐cyclodextrin (S‐CD) were assembled into {S‐CD/Mb} n layer‐by‐layer films on solid substrates. In pH 7.0 buffers, the {S‐CD/Mb} n films assembled on electrodes showed a pair of well‐defined and nearly reversible CV peaks at about −0.35 V vs. SCE. The stable CV response of {S‐CD/Mb} n films could be used to electrocatalyze reduction of oxygen and hydrogen peroxide in solution. For comparison, another modified β‐cyclodextrin, carboxyethyl‐β‐cyclodextrin (C‐CD), was also assembled with Mb into {C‐CD/Mb} n multilayer films. The driving forces of the assembly were explored and discussed.
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