Magnetite(FeO) nanoparticles with their unique and tunable magnetic properties show great prospects in biomedi...
SHI Juan~1 CAO Li-Yan~1 WANG Hai-Xia~1 ZHOU Ye-Hong~1 ZHOU Ji~2 WU Yue-Huan~2 SHUANG Shao-Min~(*1) (1 School of Chemistry and Chemical Engineering,Shanxi University,Taiyuan 030006,P.R.China
Abstract The electrochemical properties of two basic violets （methyl violet and ethyl violet） at the MWNTs/Nafion modified glassy carbon electrode were investigated. The redox of the basic violets is two-electron and two-proton process, and methyl violet presents stronger electron transfer capacity than ethyl violet. Meanwhile, the inclusion constants of the two basic violets with five CDs were determined by differential pulse voltammetry （DPV）. The two basic violets and CDs can form 1：1 complexes, The inclusion capacities of the two basic violets follow the same order： CM-β-CD 〉 HP-β-CD 〉 TM-β-CD 〉 DM-β- CD 〉 β-CD. ？2009 Yu Jing Guo. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
The interaction of the novel tetra-carboxylphenyl calix[4]arene （TCPC） with the bovine heart cytochrome c （Cc） was first investigated by fluorescence spectroscopy and molecular modeling methods. The formation of a stable 1：1 complex was monitored by fluorescence titration, and its binding constant is 1.916 ×10^7 L mol^-1. Molecular modeling reveals the recognition mechanism of TCPC to the Cc surface, that is, the electrostatic interaction drives TCPC to the Cc surface, and the van der Waals interaction orientates TCPC parallel to the cleft of Cc.
Wen Ting AnYong JiaoXiao Hua SunChuan DongShao Min ShuangPing Fang XiaMan Shing Wong
