Use of liquid crystal to study the interactions of alkyl polyglycosides with gelatin and bovine serum albumin  

作　　者：Zhi-Jian Liao Si-Nan Du Yang Luo Fang Zuo Jian-Bin Luo 

机构地区：[1]College of Chemistry & Environment Protection Engineering, Southwest University for Nationalities

出　　处：《Chinese Chemical Letters》2016年第6期852-856,共5页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 51273220, 50903011);the Project of Postgraduate Degree Construction, Southwest University for Nationalities (No. 2015XWD-S0703)

摘　　要：In this study, liquid crystal（LC） was used to study the interactions of alkyl polyglycosides（APG） with gelatin and bovine serum albumin（BSA） at the LC-aqueous interface. The LC easily undergo an orientational transition from a homeotropic to a planar state after proteins were in contact to the LCaqueous interface decorated with APG, thus inducing an optical change from dark to bright. The optical image analysis reveals that the rearrangement rate of APG monolayer is tightly dependent on the concentration and chemical structure of the protein of interest. For example, the rearrangement rate of APG monolayer increases with an increasing gelatin concentration. We also find that the chemical structure of the proteins has a significant impact on the difference in the growth behavior of bright domains in LC.In this study, liquid crystal（LC） was used to study the interactions of alkyl polyglycosides（APG） with gelatin and bovine serum albumin（BSA） at the LC-aqueous interface. The LC easily undergo an orientational transition from a homeotropic to a planar state after proteins were in contact to the LCaqueous interface decorated with APG, thus inducing an optical change from dark to bright. The optical image analysis reveals that the rearrangement rate of APG monolayer is tightly dependent on the concentration and chemical structure of the protein of interest. For example, the rearrangement rate of APG monolayer increases with an increasing gelatin concentration. We also find that the chemical structure of the proteins has a significant impact on the difference in the growth behavior of bright domains in LC.

关 键 词：Liquid crystal Alkyl polyglycoside Optical image Orientational transition 

分 类 号：O753.2[理学—晶体学] O647.2