期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 230, 期 -, 页码 70-76出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.02.002
关键词
Quantum dots; Ratiometric fluorescence; 3-Aminophenylboronic acid; Selective Recognition; Visual detection; Glucose
资金
- National Natural Science Foundation of China [21277063, 21407057, 21407064, 21446015]
- National Basic Research Program of China (973 Program) [2012CB821500]
- Natural Science Foundation of Jiangsu Province [BK20140535]
- Ph.D. Innovation Programs Foundation of Jiangsu Province [KYLX_1032]
- National Postdoctoral Science Foundation [2014M561595]
- Postdoctoral Science Foundation [1401108C]
In this work, 3-aminophenylboronic acid (APBA) functionalized dual-emission quantum dots (QDs) were prepared and utilized as the ratiometric fluorescence probe for the onsite naked eye determination of glucose. The unique ratiometric fluorescence probe, which combined ratiometric fluorescence technique with boric acid functional materials into one system, has been prepared by hybridizing red-emitting CdTe QDs (r-QDs) and green-emitting CdTe QDs (g-QDs). The fluorescence of the embedded r-QDs stays constant, whereas the g-QDs functionalized with APBA can selectively bind glucose by the chemistry of boronic acid and cis diol compounds, leading to the fluorescence of g-QDs quenched due to the surface quenching states induced mechanism and resulting in continuous fluorescence color changes (from green to red) of the ratiometric fluorescence probe system. Under optimum conditions, the proposed ratiometric probe was used for selective detection of glucose in a concentration range of 0.1-2.0 mmol/L with a detection limit of 4.5 timol/L. Moreover, the developed ratiometric fluorescence probe was successfully applied to the detection of glucose in human serum samples. The present study provides an efficient and facile ratiometric fluorescence probe for rapid, convenient, sensitive and selective visual identification of glucose in blood glucose sensing without the need of complex equipment. (C) 2016 Published by Elsevier B.V.
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