Electrochemical studies of the oxidation mechanism of polyamide on   glassy carbon electrode

doi:10.1016/j.jelechem.2004.04.005

CORC > 北京大学 > 化学与分子工程学院

	Electrochemical studies of the oxidation mechanism of polyamide on glassy carbon electrode
	Ji, ZH ; Li, JJ ; Yuan, G ; Cai, SM ; Liu, J ; Liu, C
刊名	journal of electroanalytical chemistry
	2004
关键词	polyamide oxidation mechanism electrochemistry in situ UV-Vis ESI-MS MODIFIED GOLD ELECTRODES PEPTIDE NUCLEIC-ACIDS ION-CHANNEL SENSORS MINOR-GROOVE FRAGMENTATION MECHANISMS DISTAMYCIN ANALOGS MASS-SPECTROMETRY N-METHYLIMIDAZOLE CONVENIENT METHOD BASE-PAIRS
DOI	10.1016/j.jelechem.2004.04.005
英文摘要	Polyamides containing N-methyl pyrroles and N-methyl imidazoles are a type of small molecule that can bind and recognize the bases of DNA with high affinity and specificity. Five polyamides were studied at glassy carbon electrode in acetate buffer by cyclic and differential pulse voltammetry to clarify their redox pathways. The polyamide electrochemical responses are compared by peak currents and peak potentials. The slopes of the three anodic E(p) vs. pH plots of a typical polyamide are linear and show 0.059, 0.057, 0.056 V per pH in acid media, respectively, which correspond to a mechanism involving the equal number of electrons and protons. A possible mechanism for the redox pathway of various polyamides is proposed: the oxidation product of imidazole ring is acylamide and the results of in situ UV-Vis spectroscopy at Pt web electrode support the proposed mechanism. electrospray ionization mass spectroscopy (ESI-MS) indicates that one or two oxygen atoms are added into polyamide molecule after electrochemical oxidation. (C) 2004 Elsevier B.V. All rights reserved.; Chemistry, Analytical; Electrochemistry; SCI(E); EI; 5; ARTICLE; 2; 265-273; 570
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/254421]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Ji, ZH,Li, JJ,Yuan, G,et al. Electrochemical studies of the oxidation mechanism of polyamide on glassy carbon electrode[J]. journal of electroanalytical chemistry,2004.
APA	Ji, ZH,Li, JJ,Yuan, G,Cai, SM,Liu, J,&Liu, C.(2004).Electrochemical studies of the oxidation mechanism of polyamide on glassy carbon electrode.journal of electroanalytical chemistry.
MLA	Ji, ZH,et al."Electrochemical studies of the oxidation mechanism of polyamide on glassy carbon electrode".journal of electroanalytical chemistry (2004).