Polyelectrolyte-coated liquid crystal droplets for detecting charged macromolecules

被引：44

作者：

Bera, Tanmay ^{[1
]}

Fang, Jiyu ^{[1
]}

机构：

[1] Univ Cent Florida, Dept Mech Mat & Aerosp Engn, Adv Mat Proc & Anal Ctr, Orlando, FL 32816 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 14期

基金：

美国国家科学基金会;

关键词：

SELF-ASSEMBLED MONOLAYERS; ORDERING TRANSITIONS; EMULSIONS; INTERFACES; DENDRIMERS; PHASES; WATER;

D O I：

10.1039/c2jm00038e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Chemically engineered liquid crystal droplets with stimuli responsive director configurations are attractive for sensing applications. Here, we find that the adsorption of positively charged poly(amido amine) (PAMAM) dendrimers on negatively charged poly(styrenesulfonate sodium) (PSS)-coated liquid crystal droplets can trigger a bipolar-to-radial configuration transition of the liquid crystal in the droplets, which can be easily detected with a polarizing optical microscope. The sensitivity of the PSS-coated liquid crystal droplets for detecting PAMAM dendrimers depends on the size and number of liquid crystal droplets as well as the dendrimer generation.

引用

页码：6807 / 6812

页数：6

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