Self-assembled block copolymer photonic crystal for selective fructose detection
Self-assembled block copolymer photonic crystal for selective fructose detection
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DOI：
10.1016/j.bios.2013.02.025
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发表时间：
2013-08-15
影响因子：
12.6
通讯作者：
Kofinas, Peter
中科院分区：
文献类型：
--
作者：
Ayyub, Omar B.;Ibrahim, Michael B.;Kofinas, Peter
研究了利用自组装层状嵌段共聚物制备的一维光子晶体作为灵敏的、选择性的果糖传感器。聚苯乙烯-b-聚（2-乙烯基吡啶）（PS-b-P2 VP）膜用2-（溴甲基）苯基硼酸官能化。限制在层状形态内的硼酸部分可以可逆地结合糖如果糖，赋予PS-b-P2 VP膜的光子性质。该膜在水中的检测限为500 μ M，在磷酸盐缓冲盐水中的检测限为1 mM。暴露于50 mM果糖溶液引起从蓝色到橙子的高度可见的颜色变化。在葡萄糖、甘露糖和蔗糖存在下的竞争性研究中，该膜还能够选择性地识别和响应果糖。(C)2013爱思唯尔有限公司版权所有。
The use of one-dimensional photonic crystals fabricated from a self-assembled lamellar block copolymer as a sensitive and selective fructose sensor is investigated. The polystyrene-b-poly(2-vinyl pyridine) (PS-b-P2VP) films are functionalized with 2-(bromomethyl)phenylboronic acid. The boronic acid moiety confined within the lamellar morphology can reversibly bind to sugars such as fructose, imparting the photonic properties of the PS-b-P2VP film. The films exhibit a detection limit of 500 mu M in water and 1 mM in phosphate buffered saline. Exposure to a 50 mM solution of fructose invokes a highly visible color change from blue to orange. The films are also able to selectively recognize and respond to fructose in competitive studies in the presence of glucose, mannose and sucrose. (C) 2013 Elsevier B.V. All rights reserved.