Hydrogels formed by L-histidine derivatives with highly selective release for charged dyes  

作　　者：Xiaoyang Li Fanjun Zhang Xiuping Sun Yuanyuan Hu Aixin Song Jingcheng Hao 

机构地区：[1]Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), Shandong University

出　　处：《Chinese Chemical Letters》2018年第8期1219-1222,共4页中国化学快报（英文版）

基　　金：funded by the National Natural Science Foundation of China(No. 21573134)

摘　　要：The amphiphilic derivatives of L-histidine with different alkyl chains, NIPCA, UIPCA, and TIPCA, have been designed and their self-assembly behaviors with citric acid were investigated. All L-histidine derivatives can form hydrogels with citric acid, and exhibit the increasing gelation ability and mechanical strength with the increasing chain length. The gelation ability is considered to be affected by the synergistic effect of electrostatic interaction, hydrogen bonding and hydrophobic interaction. The hydrogels exhibit excellent releasing selectivity for charged dyes in aqueous solution, enlightening people to utilize this kind of hydrogels as intelligent carriers to separate the mixtures of charged dyes.The amphiphilic derivatives of L-histidine with different alkyl chains, NIPCA, UIPCA, and TIPCA, have been designed and their self-assembly behaviors with citric acid were investigated. All L-histidine derivatives can form hydrogels with citric acid, and exhibit the increasing gelation ability and mechanical strength with the increasing chain length. The gelation ability is considered to be affected by the synergistic effect of electrostatic interaction, hydrogen bonding and hydrophobic interaction. The hydrogels exhibit excellent releasing selectivity for charged dyes in aqueous solution, enlightening people to utilize this kind of hydrogels as intelligent carriers to separate the mixtures of charged dyes.

关 键 词：GELATION Electrostatic interaction Hydrogen bonding Hydrophobic interaction 

分 类 号：TQ427.26[化学工程]