Direct Electrochemistry of Hemoglobin in Layer-by-layer {PDDA/Hb}_n Films Assembled on Pyrolytic Graphite Electrodes

Direct Electrochemistry of Hemoglobin in Layer-by-layer {PDDA/Hb}_n Films Assembled on Pyrolytic Graphite Electrodes

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摘要 Layer-by-layer {PDDA/Hb}(n) films were assembled by means of alternate adsorption of positively charged poly(diallyldimethyl ammonium) (PDDA) and negatively charged hemoglobin (Hb) at pH 9.2 from their aqueous solutions on pyrolytic graphite (PG) electrodes. Film growth during adsorption cycles was demonstrated by cyclic voltammetry and UV-Vis spectroscopy. Direct electrochemistry of Hb in {PDDA/Hb}(n) films on PG was studied. Layer-by-layer {PDDA/Hb}(n) films were assembled by means of alternate adsorption of positively charged poly(diallyldimethyl ammonium) (PDDA) and negatively charged hemoglobin (Hb) at pH 9.2 from their aqueous solutions on pyrolytic graphite (PG) electrodes. Film growth during adsorption cycles was demonstrated by cyclic voltammetry and UV-Vis spectroscopy. Direct electrochemistry of Hb in {PDDA/Hb}(n) films on PG was studied.

作者 Ping Li HE Nai Fei HU

机构地区 Department of Chemistry

出处《Chinese Chemical Letters》 SCIE CAS CSCD 2001年第7期629-630,共2页 中国化学快报(英文版)

基金 This work was supported by the National Natural Science Foundation of China.

关键词 HEMOGLOBIN poly(diallyldimethylammonium) layer-by-layer films direct electrochemistry ELECTROCATALYSIS Hemoglobin poly(diallyldimethylammonium) layer-by-layer films direct electrochemistry electrocatalysis

分类号 O646 [理学—物理化学]

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Chinese Chemical Letters

2001年第7期

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Direct Electrochemistry of Hemoglobin in Layer-by-layer {PDDA/Hb}_n Films Assembled on Pyrolytic Graphite Electrodes

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