文献类型： 外文期刊

作者： Wei, Na ¹ ; Liang, Zhi-Yong ¹ ; Fang, Wen-Le ¹ ; Guo, Xiao-Feng ¹ ; Wang, Hong ¹ ; Zhang, Hui-Xian ² ;

作者机构： 1.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China

2.Hubei Acad Agr Sci, Inst Agr Qual Stand & Testing Technol Res, Hubei Key Lab Nutr Qual & Safety Agro Prod, Wuhan 430064, Peoples R China

关键词： Silicon quantum dots; Hydrogen sulfide; Static quenching; Cell imaging; Onion tissues

期刊名称：JOURNAL OF COLLOID AND INTERFACE SCIENCE （ 影响因子：9.9； 五年影响因子：8.4 ）

ISSN： 0021-9797

年卷期： 2023 年 642 卷

页码：

收录情况： SCI

摘要： Yellow fluorescent silicon quantum dots (y-SiQDs) with 22.2% fluorescence quantum yield were synthesized by a simple hydrothermal method using 3-glycidoxypropyl triethoxysilane (GOTS) and maminophenol. The excitation wavelength is 550 nm with an emission wavelength of 574 nm, which effectively avoids the interference of biological autofluorescence. Notably, the synthesis approach does not require any post-modification and the y-SiQDs can be directly used for hydrogen sulfide (H2S) quantification due to static quenching. It exhibits high sensitivity and excellent selectivity for H2S with a 0.210 lM (R2 = 0.9953) linear range and detection limit of 54 nM. y-SiQDs have excellent stability and biocompatibility and can be used for H2S imaging in living cells and onion tissues.(c) 2023 Elsevier Inc. All rights reserved.