Oligonucleotide-stabilized fluorescent silver nanoclusters for turn-on detection of melamine

Biosensors & Bioelectronics
Shuang HanGuobao Xu

Abstract

Fluorescence nanoclusters have been used for the determination of melamine for the first time. The method is based on the fluorescence turn-on of oligonucleotide-stabilized silver nanoclusters (DNA-Ag NCs) by melamine. The enhancement factors (I-I(0))/I(0) increase linearly with melamine concentrations over the range 5.0×10(-8)-7.0×10(-6) M (R(2)=0.998). The detection limit is 1.0×10(-8) M, which is approximately 2000 times lower than the US Food and Drug Administration estimated melamine safety limit of 20.0 μM. Furthermore, the milk samples spiked with melamine are analyzed with excellent recoveries.

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Citations

Dec 4, 2012·Biosensors & Bioelectronics·Honghong YinChuanlai Xu
Nov 12, 2013·Nutrition·Nitish RaiRajasri Bhattacharyya
Apr 15, 2016·Critical Reviews in Analytical Chemistry·Yang LuShuo Wang
Dec 23, 2016·Scientific Reports·A Muthurasu, V Ganesh
Feb 3, 2018·Analytical and Bioanalytical Chemistry·Gaozhi OuXiaojun Feng
May 14, 2016·The Analyst·Chunmei GuHanchang Shi
Mar 16, 2019·Artificial Cells, Nanomedicine, and Biotechnology·Sehan JeongKi Soo Park
Apr 24, 2013·Chemical Communications : Chem Comm·Alfonso LatorreÁlvaro Somoza
Sep 13, 2014·Chemical Communications : Chem Comm·Jianwu ZhangZhimou Yang
Apr 8, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Hyunmin EunKi Soo Park
May 7, 2014·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Jihyun LeeWon Jong Kim
Dec 15, 2020·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Jinzhi LvYanming Miao
May 26, 2021·Luminescence : the Journal of Biological and Chemical Luminescence·Zixuan LiuYuxin Li

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