An Aggregation-induced Emission Probe Based on Host-Guest Inclusion Composed of the Tetraphenylethylene Motif and gamma-Cyclodextrin for the Detection of alpha-Amylase

文献类型： 外文期刊

第一作者： Shi, Jie

作者： Shi, Jie;Deng, Qianchun;Li, Ya;Wan, Chuyun;Shangguan, Huijuan;Shi, Jie;Li, Lu;Tang, Bo;Chai, Zhaofei

作者机构：

关键词： aggregation-induced emission; fluorescence; fluorescent probes; host-guest systems; alpha-amylase

期刊名称：CHEMISTRY-AN ASIAN JOURNAL （ 影响因子：4.568； 五年影响因子：3.843 ）

ISSN： 1861-4728

年卷期： 2019 年 14 卷 6 期

页码：

收录情况： SCI

摘要： alpha-Amylase, an essential biomarker in pancreas related diseases and perform a major role in carbohydrates metabolism. Hence, monitoring the dynamic changes of alpha-amylase is crucial for better clinical diagnosis of diseases. However, the existing methods are suffered from low sensitivity, time consumption and indirect assay with aid of tool enzyme or inhibitor of competitive substrates, the rapid and non-destructive sensing of alpha-amylase in biological samples was highly desired. In this work, a very simple tetraphenylethylene motif and gamma-cyclodextrin based supramolecular fluometric sensing system was firstly established. This system has no emission signal in aqueous media for the freely rotation of phenyl rings in the cavity of gamma-cyclodextrin, but the AIE residues can be released in to water after the alpha-amylase hydrolysing gamma-cyclodextrin, then turn on the fluorescence. In this system, the detection limit is calculated to be 0.007 U mL(-1) in MES buffer with a linear range of 0-0.35 U mL(-1), having excellent selectivity to alpha-amylase compared to other proteins. At last, our probe can be applied to the quantitative analysis of alpha-amylase in human serum, showing potential in point of care testing.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序