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电化学  2009 

肌红蛋白-壳聚糖-金胶纳米复合修饰电极的电催化

, PP. 454-457

Keywords: 肌红蛋白,壳聚糖,金胶,电化学,电催化

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Abstract:

在pH5.4的HAc-NaAc缓冲溶液中,肌红蛋白-壳聚糖-金胶薄膜修饰电极(Mb-Chitosan-Aucolloid/GCE)于-0.20V(vs.Ag/AgCl)处有一对准可逆的氧化还原峰,即Mb血红素辅基Fe(Ⅲ)/Fe(Ⅱ)电对的特征峰.本实验条件下,肌红蛋白与玻碳电极之间的电子传递明显加快,并考察了扫速、溶液pH及支持电解质浓度等因素对肌红蛋白电子传递的影响.紫外光谱图表明:肌红蛋白在壳聚糖-金胶溶液中依然保持其原始构象.该肌红蛋白-壳聚糖-金胶纳米修饰电极还能电催化溶解氧的还原.

References

[1]  HU Yu-jiao,HU Nai-fei,ZENG Yong-huai.Electro-chemistry and electrocatalysis with myoglobin in bi-omembrane-like surfactant-polymer 2C12N+PA-com-posite films[J].Talanta,2000,50:1183-1195.
[2]  GAO Jian-xin,Rusling J F.Electron transfer and elec-trochemical catalysis using cobalt-reconstituted myoglo-bin in a surfactant film[J].Journal of ElectroanalyticalChemistry,1998,449:1-4.
[3]  GUO Min-jie(郭敏杰),LIUZhen(刘振),LI Mei(李梅).Research progresses on adsorbing heavy metal i-ons with chitosan[J].Chinese J Environment Protec-tion of Chemical Industry(in Chinese).2004 24:262-265.
[4]  XU Yong-mei,DU Yu-min.Effect of molecular struc-ture of chitosan on protein deliveryproperties of chitosannanoparticles[J].International Journal of Pharmaceu-tics,2003,250:215-226.
[5]  Margarita D,Montserrat C,Eduardo Ruiz-hitzky.Chi-tosan-clay nanocomposites:application as electrochemi-cal sensors[J].Applied Clay Science,2005,28:199-208.
[6]  Patil V,Malvankar R B,Sastry M.Role of particle sizein individual and competitive diffusion of carboxylicacid derivatized colloidal gold particles in thermally e-vaporated fatty amine films[J].Langmuir,1999,15:8197-8206.
[7]  Rusling J F,Nassar A E F.Enhanced electron transferfor myoglobin in surfactant films on electrodes[J].JAm J Soc Chem,1993,115:11891-11897.
[8]  George P,Hanania G.Spectrophotometric study of ioni-zations in methemoglobin[J].J Biochem,1953,55:236-243.

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