Premium
Influence of Ionic Strength on Electrochemical Responses of Myoglobin Loaded in Polysaccharide Layer‐by‐Layer Assembly Films
Author(s) -
Liu Yan,
Liu Hongyun,
Guo Xihong,
Hu Naifei
Publication year - 2010
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.201000039
Subject(s) - myoglobin , ionic strength , electrochemistry , layer by layer , layer (electronics) , cellulose , electrode , materials science , chemical engineering , cyclic voltammetry , chemistry , nanotechnology , aqueous solution , organic chemistry , engineering
Two polysaccharides hydroxyethyl cellulose ethoxylate (HECE) and hyaluronic acid (HA) were assembled into {HECE/HA} n layer‐by‐layer films on electrodes. The films were then immersed in myoglobin (Mb) solutions to load Mb into the films. The Mb‐loaded films showed a nearly reversible cyclic voltammetric (CV) peak pair at −0.34 V vs. SCE in pH 7.0 buffers. The effect of ionic strength in Mb loading solutions and CV testing solutions on the CV response of the films was investigated. The direct electrochemistry of Mb loaded in the films could also be used to electrocatalyze the reduction of oxygen and H 2 O 2 in solution.