水溶性NaYF4：Eu^3＋@Ag核-壳纳米晶的下转换荧光及其在葡萄糖检测中的应用

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Bibliographic Details
Published in	中国科学：材料科学（英文版） Vol. 60; no. 1; pp. 68 - 74
Main Author	王迪王瑞红刘丽娟曲阳王国凤李亚栋
Format	Journal Article
Language	English
Published	2017
Subjects	Eu^3＋离子下转换核-壳检测技术水溶性纳米晶体荧光淬灭葡萄糖氧化酶
Online Access	Get full text
ISSN	2095-8226 2199-4501

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Bibliography:	Techniques for detecting glucose are developing at a breathtaking speed because diabetes mellitus can cause many serious complications, such as blindness, high blood pressure heart disease and kidney failure. Herein, water sol- uble NaYF4：Eu^3＋@Ag core-shell nanocrystals for glucose de- tection with lower detection limit have been successfully de- veloped, using NaYF4：Eu^3＋ cores as the energy donors and Ag shells as the efficient quenchers through energy transfer. After immobilization of glucose oxidase （GOx） on the sur- face of NaYF4：Eu^3＋@Ag core-shell nanocrystals, the Ag shells can be decomposed in the presence of glucose, accompanied by down-shifting luminescence recovery. The limit of detec- tion of NaYF4：Eu^3＋@Ag was 0.12 μmol L^-1. Therefore, the NaYF4：Eu^3＋@Ag can be easily extended to the detection of a variety of H2O2-involved analytes. NaYF4：Eu^3＋@Ag, nanocrystals, luminescence, glu-cose Di Wang1, Ruihong Wang1, Lijuan Liu1, Yang Qu1, Guofeng Wang1. and Yadong Li2 1 Key Laboratory of Functional Inorganic Materials Chemistry （Ministry of Education）, School of Chemistry and Materials Science, Heilongjiang Uni- versity, Harbin 150080, China 2 Department of Chemistry, Tsinghua University, Beijing 100084, China
ISSN:	2095-8226 2199-4501