Preparation of a new fluorescence nanochemosensor for Sn(II) ions by a modified nanoprecipitation method

被引：11

作者：

Azadbakht, Reza ^{[1
]}

Hakimi, Mohammad ^{[2
]}

Khanabadi, Javad ^{[2
]}

机构：

[1] Bu Ali Sina Univ, Fac Chem, Hamadan, Hamadan, Iran

[2] Payame Noor Univ, Dept Chem, Tehran, Iran

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2021年 / 250卷

关键词：

Macrocycle; Nano-precipitation; Fluorescence; Nano-chemosensor; Logic gate;

D O I：

10.1016/j.saa.2020.119236

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A new dialdehyde was designed and synthesized containing naphthalene groups, and then its macrocycle was prepared with 1,4-diaminobuthan. A modified nanoprecipitation method has been reported for the preparation of the nanoparticles. In this method, to obtain nanoparticles with small particle sizes, the nucleation rate was increased with decreasing of the mixing time. The organic nanoparticles were used for turn-off fluorescence response of low concentration of Sn2+ ions over cations such as Cs+, K+, Na+, Ba2+, Ca2+, Mg2+, Al3+, Pb2+, Zn2+, Cu2+, Ni2+, Co2+, Fe2+, Mn2+, Ag+, Cd2+, and Hg2+ and ions in aqueous buffer solution. The limit of detection was 5.4 nM. (C) 2020 Elsevier B.V. All rights reserved.

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页数：9

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