金/巯基环肽单层膜的循环伏安和交流阻抗初步研究  

CYCLIC VOLTAMMETRY AND AC IMPEDANCE STUDIES OF Au SUPPORTED CYCLIC PEPTIDES CONTAINING BENZENE AND CYSTINE MONOLAYERS

作　　者：郭敏[1] 刁鹏[2] 童汝亭[2] 

机构地区：[1]河北医科大学中医学院中药系,河北石家庄050091 [2]河北师范大学化学系,河北石家庄050016

出　　处：《化学研究与应用》2001年第6期641-644,共4页Chemical Research and Application

基　　金：河北省自然科学基金资助项目 ( 2 9815 9)

摘　　要：用电化学方法初步研究了巯基环肽在金基底上形成的吸附层 ,结果表明巯基环肽 (CPCBC)可以在金表面形成具有一定覆盖度的吸附膜 ;与烷基硫醇单层膜不同的是 ,该吸附膜十分松散。我们初步认为巯基环肽分子采用“直立式吸附” 。The blocking property of Au supported cyclic peptides containing benzene and cystine(CPCBC) monolayer was investigated by EIS and CV.Experimental results showed that blocking property of Au/CPCBC monolayer was poorer than that of Au/ODT monolayer.We assumed that CPCBC took the “standing pattern” adsorption on gold,and the complexity of the CPCBC structure was the main cause of the poor blocking property of the CPCBC monolayer.The detailed and specific conditions of Au/CPCBC monolayers are still remained to be done and this issue needs further study.

关 键 词：金/巯基环肽单分子层膜 交流阻抗 循环伏安 金电极 自组装 吸附膜 

分 类 号：O646.5[理学—物理化学]