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肌红蛋白在海藻酸钠水凝胶中的电化学和电催化特性 被引量：2

Direct electrochemistry and electrocatalysis of myoglobin entrapped in sodium alginate hydrogel films
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摘要 Myoglobin was immobilized on edge-plane pyrolytic graphite（EPG）electrodes by sodium alginate hydrogel.The protein entrapped in the sodium alginate film undergoes fast direct electron-transfer reactions with the formal potential(Eo′)of-0.296V（vs SCE）,corresponding to FeⅢ+e-→FeⅡ,The Eo′s are linearly dependent on solution pH with the slope value of-35.0 mV/pH,indicating that the electron transfer was proton-coupled.The mechanisms for catalytic reduction of oxygen,hydrogen peroxide and nitric oxide by myoglobin entrapped in sodium alginate hydrogel were also explored. Myoglobin was immobilized on edge-plane pyrolytic graphite(EPG)electrodes by sodium alginate hydrogel.The protein entrapped in the sodium alginate film undergoes fast direct electron-transfer reactions with the formal potential(E^(o′))of-0.296V(vs SCE),corresponding to Fe~Ⅲ+e^-→Fe~Ⅱ,The E^(o′)s are linearly dependent on solution pH with the slope value of-35.0 mV/pH,indicating that the electron transfer was proton-coupled.The mechanisms for catalytic reduction of oxygen,hydrogen peroxide and nitric oxide by myoglobin entrapped in sodium alginate hydrogel were also explored.
作者 李业梅 刘慧宏 张志凌
机构地区 郧阳师范高等专科学校化学系 襄樊学院化学与生物科学系 武汉大学化学系
出处 《化学研究与应用》 CAS CSCD 北大核心 2004年第4期530-532,共3页 Chemical Research and Application
关键词 肌红蛋白 海藻酸钠 直接电化学 电催化 Myoglobin sodium alginate electrochemistry eletrocatalysis
分类号 O646 [理学—物理化学]
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参考文献6

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  • 2Zhang Z,Chouchane S,Magliozzo R.S,et al.Anal.Chem,2002,74:163-170.
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  • 6Zhang Z,Chouchane S,Maglizzo R.S,et al.Anal.Chem,2002,74:163-170.

共引文献1

同被引文献23

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化学研究与应用
2004年 第4期

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