Sensitive Hg2+ Ion Detection Using Metal Enhanced Fluorescence of Novel Polyvinyl Pyrrolidone (PVP)-Templated Gold Nanoparticles

Kailong Dong; Jiasheng Zhou; Taiqun Yang; Shan Dai; Hao Tan; Yuting Chen; Haifeng Pan; Jinquan Chen; Benjamin Audit; Sanjun Zhang; Jianhua Xu

doi:10.1177/0003702818775704

Sensitive Hg²⁺ Ion Detection Using Metal Enhanced Fluorescence of Novel Polyvinyl Pyrrolidone (PVP)-Templated Gold Nanoparticles

Kailong Dong, Jiasheng Zhou, Taiqun Yang, Shan Dai, Hao Tan, Yuting Chen, Haifeng Pan, Jinquan Chen, Benjamin Audit, Sanjun Zhang, Jianhua Xu

Institute for Advanced Study in Precision Spectroscopy

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

In this study, we report a straightforward strategy for Hg²⁺ ion detection. Fluorescent Au nanoparticles (NPs) were one-pot synthesized using a polymer (polyvinyl pyrrolidone [PVP]) as both capping and fluorescence agent. The as-synthesized PVP-Au NPs showed a remarkably rapid response selectively for Hg²⁺ ions compared to 14 other metal ions. The detection limit of Hg²⁺ was estimated at 100 nM. We discuss the emission and quenching mechanism of the PVP-Au NPs, the former being attributed to metal enhanced fluorescence and the latter being related to static quenching by Hg²⁺. The fluorescence of PVP-Au NPs offers an efficient and reliable strategy for Hg²⁺ ions detection. They therefore have a great potential for applications in health and environmental monitoring.

Original language	English
Pages (from-to)	1645-1652
Number of pages	8
Journal	Applied Spectroscopy
Volume	72
Issue number	11
DOIs	https://doi.org/10.1177/0003702818775704
State	Published - 1 Nov 2018

Keywords

Gold nanoparticles
Hg sensor
PVP
fluorescent sensor
metal enhanced fluorescence
polyvinyl pyrrolidone

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10.1177/0003702818775704

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title = "Sensitive Hg2+ Ion Detection Using Metal Enhanced Fluorescence of Novel Polyvinyl Pyrrolidone (PVP)-Templated Gold Nanoparticles",

abstract = "In this study, we report a straightforward strategy for Hg2+ ion detection. Fluorescent Au nanoparticles (NPs) were one-pot synthesized using a polymer (polyvinyl pyrrolidone [PVP]) as both capping and fluorescence agent. The as-synthesized PVP-Au NPs showed a remarkably rapid response selectively for Hg2+ ions compared to 14 other metal ions. The detection limit of Hg2+ was estimated at 100 nM. We discuss the emission and quenching mechanism of the PVP-Au NPs, the former being attributed to metal enhanced fluorescence and the latter being related to static quenching by Hg2+. The fluorescence of PVP-Au NPs offers an efficient and reliable strategy for Hg2+ ions detection. They therefore have a great potential for applications in health and environmental monitoring.",

keywords = "Gold nanoparticles, Hg sensor, PVP, fluorescent sensor, metal enhanced fluorescence, polyvinyl pyrrolidone",

author = "Kailong Dong and Jiasheng Zhou and Taiqun Yang and Shan Dai and Hao Tan and Yuting Chen and Haifeng Pan and Jinquan Chen and Benjamin Audit and Sanjun Zhang and Jianhua Xu",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2018.",

year = "2018",

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doi = "10.1177/0003702818775704",

language = "英语",

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T1 - Sensitive Hg2+ Ion Detection Using Metal Enhanced Fluorescence of Novel Polyvinyl Pyrrolidone (PVP)-Templated Gold Nanoparticles

AU - Dong, Kailong

AU - Zhou, Jiasheng

AU - Yang, Taiqun

AU - Dai, Shan

AU - Tan, Hao

AU - Chen, Yuting

AU - Pan, Haifeng

AU - Chen, Jinquan

AU - Audit, Benjamin

AU - Zhang, Sanjun

AU - Xu, Jianhua

N1 - Publisher Copyright: © The Author(s) 2018.

PY - 2018/11/1

Y1 - 2018/11/1

N2 - In this study, we report a straightforward strategy for Hg2+ ion detection. Fluorescent Au nanoparticles (NPs) were one-pot synthesized using a polymer (polyvinyl pyrrolidone [PVP]) as both capping and fluorescence agent. The as-synthesized PVP-Au NPs showed a remarkably rapid response selectively for Hg2+ ions compared to 14 other metal ions. The detection limit of Hg2+ was estimated at 100 nM. We discuss the emission and quenching mechanism of the PVP-Au NPs, the former being attributed to metal enhanced fluorescence and the latter being related to static quenching by Hg2+. The fluorescence of PVP-Au NPs offers an efficient and reliable strategy for Hg2+ ions detection. They therefore have a great potential for applications in health and environmental monitoring.

AB - In this study, we report a straightforward strategy for Hg2+ ion detection. Fluorescent Au nanoparticles (NPs) were one-pot synthesized using a polymer (polyvinyl pyrrolidone [PVP]) as both capping and fluorescence agent. The as-synthesized PVP-Au NPs showed a remarkably rapid response selectively for Hg2+ ions compared to 14 other metal ions. The detection limit of Hg2+ was estimated at 100 nM. We discuss the emission and quenching mechanism of the PVP-Au NPs, the former being attributed to metal enhanced fluorescence and the latter being related to static quenching by Hg2+. The fluorescence of PVP-Au NPs offers an efficient and reliable strategy for Hg2+ ions detection. They therefore have a great potential for applications in health and environmental monitoring.

KW - Gold nanoparticles

KW - Hg sensor

KW - PVP

KW - fluorescent sensor

KW - metal enhanced fluorescence

KW - polyvinyl pyrrolidone

UR - https://www.scopus.com/pages/publications/85047428352

U2 - 10.1177/0003702818775704

DO - 10.1177/0003702818775704

M3 - 文章

C2 - 29767534

AN - SCOPUS:85047428352

SN - 0003-7028

VL - 72

SP - 1645

EP - 1652

JO - Applied Spectroscopy

JF - Applied Spectroscopy

IS - 11

ER -

Sensitive Hg²⁺ Ion Detection Using Metal Enhanced Fluorescence of Novel Polyvinyl Pyrrolidone (PVP)-Templated Gold Nanoparticles

Abstract

Keywords

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