期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 25, 页码 9559-9565出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta01031k
关键词
-
资金
- NSFC [20775007, 21375009]
- National Basic Research Program of China (973 program) [2012CB910603]
A novel 2-D photonic crystal (PC) sensing material for the visual detection of glucose with high selectivity at a physiological ionic strength (150 mM) is developed. A monolayer polystyrene crystalline colloidal array (CCA) is embedded in a phenylboronic acid (PBA) functionalized hydrogel film to diffract light to sensitively report on the hydrogel surface area. This 2-D PC sensor is superior to the previously reported 3-D PC sensors due to its fast preparation and simple detection. The binding of glucose would increase the cross-linking of the hydrogel that could shrink the hydrogel to increase the Debye diffraction ring diameter. At a physiological ionic strength of 150 mM, the 2-D PC sensor exhibits significant sensitivity for glucose across the entire human physiological glucose range. Additionally, the 2-D PC sensor shows high selectivity for glucose rather than other sugars (fructose and galactose). The diffraction color change of the 2-D PC sensor can be observed. For validation, the prepared 2-D PC hydrogel sensor is applied for the sensing of glucose in the artificial tear fluid.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据