Novel color changing pH sensors based on cholesteric polymers

被引：19

作者：

Shibaev, Petr V. ^{[1
]}

Sanford, R. Lea ^{[1
]}

Chiappetta, Daniel ^{[1
]}

Rivera, Pierre ^{[1
]}

机构：

[1] Fordham Univ, Dept Phys, Bronx, NY 10458 USA

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2007年 / 479卷

关键词：

amino acids; chiral; cholesteric; color sensors; hydrogen bonds; selective reflection; water;

D O I：

10.1080/15421400701739006

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Color changing cholesteric hydrogen bonded polymer films responding to pH changes induced by basic amino acids or inorganic bases were synthesized and studied. The films with a higher concentration of donor/acceptor groups display a larger shift of the selective reflection band and faster response. This effect is explained in terms of the breakage of hydrogen bonds that occurs between the components of a cholesteric polymer, immersed in various basic aqueous solutions including amino acids.

引用

页码：1199 / 1205

页数：7

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