Microwave-assisted synthesis of highly luminescent AgInS2/ZnS nanocrystals for dynamic intracellular Cu(II) detection

被引：78

作者：

Xiong, Wei-Wei ^{[1
]}

Yang, Guo-Hai ^{[1
]}

Wu, Xing-Cai ^{[1
]}

Zhu, Jun-Jie ^{[1
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Key Lab Mesoscop Chem MOE, State Key Lab Analyt Chem Life Sci, Nanjing 210093, Jiangsu, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY B | 2013年 / 1卷 / 33期

基金：

中国国家自然科学基金;

关键词：

ONE-POT SYNTHESIS; QUANTUM DOTS; FLUORESCENT SENSOR; AQUEOUS-SOLUTION; COPPER; CADMIUM; PHASE;

D O I：

10.1039/c3tb20638f

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

Low-toxicity, highly luminescent, and water-soluble AgInS2/ZnS nanocrystals (NCs) have been synthesized via a microwave-assisted approach. The structure and optical features of the AgInS2/ZnS NCs were characterized by X-ray diffraction, high resolution transmission electron microscopy, Fourier transform infrared spectroscopy, ultraviolet visible absorption spectroscopy and photoluminescence (PL) spectroscopy. The as-synthesized AgInS2/ZnS NCs exhibited high PL quantum yields (40%) and long PL lifetimes (424.5 ns). Furthermore, the dynamic changes of the intracellular copper(II) levels in HeLa cells were monitored using the AgInS2/ZnS NCs as fluorescent probes. The results showed that the AgInS2/ZnS NCs as promising fluorescent probes can be used in the detection of intracellular copper ions in living cells.

引用

页码：4160 / 4165

页数：6

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