期刊文献+

固定化辣根过氧化物酶的电化学和电催化特性 被引量:1

Electrochemical and Electrocatalytical Behavior of Horseradish Peroxidase Entrapped in Sodium Alginate Hydrogel Films
下载PDF
导出
摘要 用海藻酸钠(SA)将辣根过氧化物酶(HRP)固定到热裂解石墨电极表面,制备了HRP-SA膜修饰电极。研究发现包埋在SA膜中的辣根过氧化物酶可与电极直接传递电子,在缓冲溶液中可得到一对辣根过氧化物酶辅基血红素Fe(Ⅲ)/Fe(Ⅱ)电对的可逆氧化还原峰。其式电势随溶液pH值增加而负移,且呈线性关系,这说明辣根过氧化物酶的电子传递过程伴随有质子的转移。并考察了HRP-SA膜修饰电极对氧气、双氧水、一氧化氮的电催化性质。 Horseradish peroxidase was immobilized on edge-plane pyrolytic graphite (EPG) electrode by sodium alginate hydrogel. The horseradish peroxidase entrapped in the sodium alginate film underweat fast direct electron-transfer reaction. The formal potential (E°) was linearly dependent on solution pH, indicating that the electron transfer was proton-coupled. The catalytic reduction of oxygen, hydrogen peroxide and nitric oxide by the horseradish peroxidase entrapped in sodium alginate hydrogel was also explored.
出处 《化学世界》 CAS CSCD 北大核心 2008年第9期532-535,515,562,共6页 Chemical World
基金 湖北省教育厅重点科研项目资助(D200560002)
关键词 辣根过氧化物酶 海藻酸钠 直接电化学 电催化 horseradish peroxidase sodium alginate electrochemistry electrocatalysis
  • 相关文献

参考文献9

  • 1Gorton L, Lingren A, Larsson T, et al. Direct electron transfer between heme-containing enzymes and electrodes as basis for third generation biosensors[J]. Anal Chem Acta, 1999, 400(1):91-1081.
  • 2O'Dea J J, Osteryoumg J G. Characterization of quasireversible surface processes by square-wave voltammetry[J]. Anal Chem, 1993,65, 3090-3097.
  • 3Faulkner K M, Bonaventura C, Crumbliss A L. A spectroelectrochemical method for differentiation of steric and electronic effects in hemoglobins and myoglobins[J]. J Biol Chem, 1995, 270: 13604- 13612.
  • 4King B C, Hawkridge F M, Hoffman B M. Electrochemical studies of cyanometmyoglohin and metmyoglobin: implications for long-range electron transfer in proteins[J]. J Am Chem Soc, 1992, 114: 10603-10608.
  • 5周颖琳,胡玉娇,曾泳淮.血红蛋白在双十二烷基二甲基铵-聚乙烯硫酸盐多双层复合薄膜电极上的电化学与电催化[J].分析化学,2002,30(3):262-266. 被引量:10
  • 6刘慧宏,陈显堂,李俊,Hill H.A.O..辣根过氧化物酶在表面活性剂膜中的直接电化学[J].分析化学,2001,29(5):511-515. 被引量:19
  • 7Onuoha A C, Zu X, Rusling J F. Electrochemical generation and reactions of ferrylmyoglobin in water and microemulsions[J]. J Am Chem Soc, 1997, 119: 3979-3985.
  • 8Schmidt A, Schumacher J T, Reichelt J, et al. Mechanistic and molecular investigations on stabilization of horseradish peroxidase C [J]. Anal Chem, 2002, 74:3037-3042.
  • 9Bayachou M, Lin R, Cho W, et al. Elect rochemical reduction of NO by myoglobin in surfactant film: characterization and reactivity of the nit foxy[ (NO^-) adduct[J]. J Am Chem Soc, 1998, 120:9888-9893.

二级参考文献4

  • 1李根喜 方惠群 等.分析化学进展[M].南京:南京大学出版社,1994.718.
  • 2Li J H,J Electroanal Chem,1997年,431卷,19页
  • 3董绍俊,化学修饰电极,1995年,440页
  • 4Zhao J,J Electroanal Chem,1992年,327卷,109页

共引文献26

同被引文献6

引证文献1

二级引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部