Redox Recycling-Triggered Peroxidase-Like Activity Enhancement of Bare Gold Nanoparticles for Ultrasensitive Colorimetric Detection of Rare-Earth Ce3+ Ion

Analytical Chemistry
Hao-Hua DengWei Chen

Abstract

Although it has been demonstrated that rare-earth elements (REEs) disturb and alter the catalytic activity of numerous natural enzymes, their effects on nanomaterial-based artificial enzymes (nanozymes) have been seldom explored. In this work, the influence of REEs on the peroxidase-like activity of bare gold nanoparticles (GNPs) is investigated for the first time, and a new type of Ce3+-activated peroxidase mimetic activity of GNPs is obtained. The introduced Ce3+ can be bound to the bare GNP surface rapidly through electrostatic attraction, after which it donates its electron to the bare GNP. As H2O2 is a good electron scavenger, more •OH radicals are generated on the surfaces of the bare GNPs, which can considerably enhance TMB oxidation. Due to its redox cycling ability, the activation effect of Ce3+ is proved to be more efficient in comparison to those of the other reported metal ion activators (e.g., Bi3+, Hg2+, and Pb2+). In addition, it is determined that Ce3+ should directly contact with the gold core to trigger its activation effect. When the surface states of the bare GNPs are altered, the Ce3+-stimulated effect is strongly inhibited. Furthermore, a novel colorimetric method for Ce3+ is developed, on the basis of its...Continue Reading

References

May 14, 2005·Analytical Chemistry·Zhi-Feng ZhangLi-Juan Liu
Aug 30, 2005·Molecular Aspects of Medicine·Cesar G Fraga
Jul 26, 2008·Nature Nanotechnology·Lizeng GaoXiyun Yan
Oct 14, 2009·Biochimie·Lihong WangXiaohua Huang
Mar 9, 2011·Biosensors & Bioelectronics·Xian-Xiang WangQian-Ming Huang
May 13, 2011·Chemical Communications : Chem Comm·Wenbing ShiYuming Huang
Oct 7, 2011·Chemical Communications : Chem Comm·Yi Juan LongCheng Zhi Huang
Jan 31, 2012·Chemical Communications : Chem Comm·Jianshuai MuLi Zhang
Jul 5, 2012·Chemical Communications : Chem Comm·Chia-Wen LienHuan-Tsung Chang
Oct 30, 2012·Analytical Chemistry·Chen-I WangHuan-Tsung Chang
Oct 22, 2014·Chemical Communications : Chem Comm·Tarun Kumar SharmaVipul Bansal
Aug 22, 2015·Chemical Reviews·Xuan YangYounan Xia
Dec 15, 2015·Analytical Chemistry·Mustafa Salih HizirMehmet Veysel Yigit
Nov 14, 2016·Journal of Fluorescence·Foad SalehniaParviz Norouzi
Jul 22, 2003·Langmuir : the ACS Journal of Surfaces and Colloids·Ashavani KumarMurali Sastry
Aug 7, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Ripon BhattacharjeeMuhammad J A Shiddiky

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Citations

Sep 30, 2020·Analytical Methods : Advancing Methods and Applications·Yangyang ChangJuewen Liu
Dec 20, 2020·Biosensors & Bioelectronics·Bankuru NavyathaSeema Nara
May 16, 2020·Materials Science & Engineering. C, Materials for Biological Applications·Yi XieYonghai Song
Jul 14, 2020·Journal of Hazardous Materials·Binesh UnnikrishnanChih-Ching Huang
Jun 18, 2021·Nano-micro Letters·Javier Lou-FrancoCuong Cao
Nov 7, 2019·Analytical Chemistry·Zhangping LouHui Wei
Feb 2, 2022·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Zhen WuYuangen Wu

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