GSH Induction of GoldNanorods Self-assembly and Mercury Ion Detection

Jian Jun Li; Yu Jie Yang; Guo Jun Weng; Jian Zhu; Jun Wu Zhao

doi:10.3788/gzxb20174609.0916002

GSH Induction of GoldNanorods Self-assembly and Mercury Ion Detection

Jian Jun Li
, Yu Jie Yang
, Guo Jun Weng
, Jian Zhu
, Jun Wu Zhao

School of Life Science and Technology (SLST)

Xi'an Jiaotong University

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

1 Scopus citations

Abstract

A simple and ultrasensitive detect method for mercury based on the assembly and disassembly of gold nanorods was proposed. When reduced glutathione (GSH) was added into gold nanorods colloidal solution, Au-S bond will formed on the surface of the gold nanorods. Meanwhile hydrogen bonding and electrostatic interaction prompt self-assembly of gold nanorods (End to End). After mixed with mercury ion, self-assembly of gold nanorods will be inhibition and re-dispersion. Based on above phenomenon, super lower concentration of mercury ion canbedetected used surface plasmon resonance (SPR) of gold nanorods. The lowest detection limit of this method is 1 nmol/L when measured by UV-Vis spectroscopy, and the range is from 10 μmol/L to 100 μmol/L when observed by the naked eye. This method for mercury detection based on the assembly and disassembly of gold nanorods can be applied to detecting and monitoring of mercury in environmental.

Original language	English
Article number	0916002
Journal	Guangzi Xuebao/Acta Photonica Sinica
Volume	46
Issue number	9
DOIs	https://doi.org/10.3788/gzxb20174609.0916002
State	Published - 1 Sep 2017

Keywords

Absorption spectrum
Aspect ratio
Gold nanorods
Mercury ion detection
Self-assembly

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10.3788/gzxb20174609.0916002

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title = "GSH Induction of GoldNanorods Self-assembly and Mercury Ion Detection",

abstract = "A simple and ultrasensitive detect method for mercury based on the assembly and disassembly of gold nanorods was proposed. When reduced glutathione (GSH) was added into gold nanorods colloidal solution, Au-S bond will formed on the surface of the gold nanorods. Meanwhile hydrogen bonding and electrostatic interaction prompt self-assembly of gold nanorods (End to End). After mixed with mercury ion, self-assembly of gold nanorods will be inhibition and re-dispersion. Based on above phenomenon, super lower concentration of mercury ion canbedetected used surface plasmon resonance (SPR) of gold nanorods. The lowest detection limit of this method is 1 nmol/L when measured by UV-Vis spectroscopy, and the range is from 10 μmol/L to 100 μmol/L when observed by the naked eye. This method for mercury detection based on the assembly and disassembly of gold nanorods can be applied to detecting and monitoring of mercury in environmental.",

keywords = "Absorption spectrum, Aspect ratio, Gold nanorods, Mercury ion detection, Self-assembly",

author = "Li, \{Jian Jun\} and Yang, \{Yu Jie\} and Weng, \{Guo Jun\} and Jian Zhu and Zhao, \{Jun Wu\}",

year = "2017",

month = sep,

day = "1",

doi = "10.3788/gzxb20174609.0916002",

language = "英语",

volume = "46",

journal = "Guangzi Xuebao/Acta Photonica Sinica",

issn = "1004-4213",

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}

TY - JOUR

T1 - GSH Induction of GoldNanorods Self-assembly and Mercury Ion Detection

AU - Li, Jian Jun

AU - Yang, Yu Jie

AU - Weng, Guo Jun

AU - Zhu, Jian

AU - Zhao, Jun Wu

PY - 2017/9/1

Y1 - 2017/9/1

N2 - A simple and ultrasensitive detect method for mercury based on the assembly and disassembly of gold nanorods was proposed. When reduced glutathione (GSH) was added into gold nanorods colloidal solution, Au-S bond will formed on the surface of the gold nanorods. Meanwhile hydrogen bonding and electrostatic interaction prompt self-assembly of gold nanorods (End to End). After mixed with mercury ion, self-assembly of gold nanorods will be inhibition and re-dispersion. Based on above phenomenon, super lower concentration of mercury ion canbedetected used surface plasmon resonance (SPR) of gold nanorods. The lowest detection limit of this method is 1 nmol/L when measured by UV-Vis spectroscopy, and the range is from 10 μmol/L to 100 μmol/L when observed by the naked eye. This method for mercury detection based on the assembly and disassembly of gold nanorods can be applied to detecting and monitoring of mercury in environmental.

AB - A simple and ultrasensitive detect method for mercury based on the assembly and disassembly of gold nanorods was proposed. When reduced glutathione (GSH) was added into gold nanorods colloidal solution, Au-S bond will formed on the surface of the gold nanorods. Meanwhile hydrogen bonding and electrostatic interaction prompt self-assembly of gold nanorods (End to End). After mixed with mercury ion, self-assembly of gold nanorods will be inhibition and re-dispersion. Based on above phenomenon, super lower concentration of mercury ion canbedetected used surface plasmon resonance (SPR) of gold nanorods. The lowest detection limit of this method is 1 nmol/L when measured by UV-Vis spectroscopy, and the range is from 10 μmol/L to 100 μmol/L when observed by the naked eye. This method for mercury detection based on the assembly and disassembly of gold nanorods can be applied to detecting and monitoring of mercury in environmental.

KW - Absorption spectrum

KW - Aspect ratio

KW - Gold nanorods

KW - Mercury ion detection

KW - Self-assembly

UR - https://www.scopus.com/pages/publications/85031758498

U2 - 10.3788/gzxb20174609.0916002

DO - 10.3788/gzxb20174609.0916002

M3 - 文章

AN - SCOPUS:85031758498

SN - 1004-4213

VL - 46

JO - Guangzi Xuebao/Acta Photonica Sinica

JF - Guangzi Xuebao/Acta Photonica Sinica

IS - 9

M1 - 0916002

ER -

GSH Induction of GoldNanorods Self-assembly and Mercury Ion Detection

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Keywords

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