MoS2-based nanoprobes for detection of silver ions in aqueous solutions and bacteria

ACS Applied Materials & Interfaces
Yu YangMeiwan Chen

Abstract

Silver as an extensively used antibacterial agent also poses potential threats to the environment and human health. Hence, in this work, we design a fluorescent nanoprobe by using rhodamine B isothiocyanate (RhoBS) adsorbed MoS2 nanosheets to realize sensitive and selective detection of Ag(+). On the surface of RhoBS-loaded MoS2 nanosheets, Ag(+) can be reduced to Ag nanoparticles, which afterward could not only lead to the detachment of RhoBS molecules and thus their recovered fluorescence but also the surface-enhanced fluorescence from RhoBS remaining adsorbed on MoS2. Such an interesting mechanism allows highly sensitive detection of Ag(+) (down to 10 nM) with great selectivity among other metal ions. Moreover, we further demonstrate that our MoS2-RhoBS complex could act as a nontoxic nanoprobe to detect Ag(+) in live bacteria samples. Our work resulted from an unexpected finding and suggests the promise of two-dimensional transition-metal sulfide nanosheets as a novel platform for chemical and biological sensing.

References

Jan 17, 2004·The Journal of Burn Care & Rehabilitation·Daniel M CarusoChristina Rick
Jun 24, 2004·The Analyst·Jian-Gong LiangDai-Wen Pang
Jul 21, 2006·The Journal of Physical Chemistry. B·Jian ZhangJoseph R Lakowicz
Aug 19, 2008·Journal of Clinical Nursing·Shu-Fen LoLing-Ling Lee
Dec 17, 2009·Nature Materials·Hailin PengYi Cui
Oct 29, 2010·Journal of the American Chemical Society·Guosong HongHongjie Dai
Jan 22, 2011·ACS Applied Materials & Interfaces·Haowen HuangPaul K Chu
Jan 25, 2011·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·Kutsal Devrim SecintiMustafa F Sargon
Feb 1, 2011·Nature Nanotechnology·B RadisavljevicA Kis
Jan 31, 2013·Chemical Society Reviews·Hailiang Wang, Hongjie Dai
Mar 12, 2013·Journal of the American Chemical Society·Stanley S ChouVinayak P Dravid
Mar 21, 2013·Nature Chemistry·Manish ChhowallaHua Zhang
Apr 11, 2013·Journal of the American Chemical Society·Changfeng ZhuHua Zhang
Mar 5, 2014·ACS Nano·Deblina SarkarKaustav Banerjee
May 21, 2014·Advanced Materials·Phan Thi Kim LoanChang-Hsiao Chen
Jul 10, 2014·ACS Nano·Amir Barati FarimaniNarayana R Aluru
Jul 18, 2014·Biosensors & Bioelectronics·Tianran LinGuonan Chen
Jan 28, 2015·Chemical Society Reviews·Subhankar SinghaKyo Han Ahn

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Citations

Oct 28, 2015·Nanoscale·Wensi ZhangGang Wei
Oct 25, 2016·Materials Science & Engineering. C, Materials for Biological Applications·Zibiao Li, Swee Liang Wong
Apr 3, 2016·Biosensors & Bioelectronics·Xiaorong GanXie Quan
Jul 6, 2016·Chemical Communications : Chem Comm·Donghao XieXiao-Peng He
Mar 18, 2017·Chemical Reviews·Chaoliang TanHua Zhang
Dec 28, 2017·Advanced Healthcare Materials·Teng Liu, Zhuang Liu
Jun 26, 2018·Chemical Society Reviews·Cosimo AnichiniPaolo Samorì
Feb 28, 2019·Analytical and Bioanalytical Chemistry·Xueding JiangYong Liang
Mar 25, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Shige WangHangrong Chen
Dec 2, 2020·Materials Science & Engineering. C, Materials for Biological Applications·Yanan LiXiangyu Zhang
Jun 9, 2020·Colloids and Surfaces. B, Biointerfaces·Jiaying LuJingjing Li
Nov 9, 2020·Biomaterials·Si MengS Meng
Jul 1, 2017·Environmental Science & Technology·Zhongying Wang, Baoxia Mi

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