Issue 66, 2018, Issue in Progress
From the journal:

RSC Advances

Enhanced upconversion fluorescent probe of single NaYF4:Yb3+/Er3+/Zn2+ nanoparticles for copper ion detection†

Baobao Zhang, ORCID logo a   Jiajia Meng,a   Xiaohu Mi,a   Changjian Zhang,a   Zhenglong Zhang*a  and  Hairong Zheng*a  

* Corresponding authors

a School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, P. R. China
E-mail: hrzheng@snnu.edu.cn, zlzhang@snnu.edu.cn

Abstract

Surface modified NaYF4:Yb3+/Er3+/Zn2+ upconversion nanoparticles were obtained by using branched polyethylenimine (PEI). Strong fluorescence emission was observed and the influence of copper ions on the fluorescence emission of the PEI-modified NaYF4:Yb3+/Er3+/Zn2+ nanoparticles was investigated. It was found that the fluorescence emission can be quenched through luminescence resonance energy transfer from the particle to the copper ions. The results show that the PEI modified NaYF4:Yb3+/Er3+/Zn2+ nanoparticle can be used as a fluorescent probe for highly sensitive and selective detection of copper ions.

Graphical abstract: Enhanced upconversion fluorescent probe of single NaYF4:Yb3+/Er3+/Zn2+ nanoparticles for copper ion detection

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Article information

DOI
https://doi.org/10.1039/C8RA07103A
Article type
Paper
Submitted
25 Aug 2018
Accepted
31 Oct 2018
First published
08 Nov 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 37618-37622

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Enhanced upconversion fluorescent probe of single NaYF4:Yb3+/Er3+/Zn2+ nanoparticles for copper ion detection

B. Zhang, J. Meng, X. Mi, C. Zhang, Z. Zhang and H. Zheng, RSC Adv., 2018, 8, 37618 DOI: 10.1039/C8RA07103A

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