Flexible colorimetric detection of mercuric ion by simply mixing nanoparticles and oligopeptides

Jianjun Du; Yinghui Sun; Lin Jiang; Xuebo Cao; Dianpeng Qi; Shengyan Yin; Jan Ma; Freddy Y.C. Boey; Xiaodong Chen

doi:10.1002/smll.201002270

Flexible colorimetric detection of mercuric ion by simply mixing nanoparticles and oligopeptides

Jianjun Du, Yinghui Sun, Lin Jiang, Xuebo Cao, Dianpeng Qi, Shengyan Yin, Jan Ma, Freddy Y.C. Boey, Xiaodong Chen^*

^*Corresponding author for this work

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

84 Citations (Scopus)

Abstract

A colorimetric detection system for Hg²⁺ in aqueous media is developed with high selectivity and sensitivity based on the mixing of gold nanoparticles and oligopeptides. Oligopeptides with cysteine (Cys) at both ends normally aggregate gold nanoparticles, which can be disturbed by Hg²⁺ through formation of an oligopeptide-Hg²⁺ complex.

Original language	English
Pages (from-to)	1407-1411
Number of pages	5
Journal	Small
Volume	7
Issue number	10
DOIs	https://doi.org/10.1002/smll.201002270
Publication status	Published - May 23 2011
Externally published	Yes

ASJC Scopus Subject Areas

Biotechnology
Biomaterials
General Chemistry
General Materials Science

Keywords

colorimetry
gold
mercury
nanoparticles
oligopeptides

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10.1002/smll.201002270

Cite this

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abstract = "A colorimetric detection system for Hg2+ in aqueous media is developed with high selectivity and sensitivity based on the mixing of gold nanoparticles and oligopeptides. Oligopeptides with cysteine (Cys) at both ends normally aggregate gold nanoparticles, which can be disturbed by Hg2+ through formation of an oligopeptide-Hg2+ complex.",

keywords = "colorimetry, gold, mercury, nanoparticles, oligopeptides",

author = "Jianjun Du and Yinghui Sun and Lin Jiang and Xuebo Cao and Dianpeng Qi and Shengyan Yin and Jan Ma and Boey, {Freddy Y.C.} and Xiaodong Chen",

year = "2011",

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doi = "10.1002/smll.201002270",

language = "English",

volume = "7",

pages = "1407--1411",

journal = "Small",

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T1 - Flexible colorimetric detection of mercuric ion by simply mixing nanoparticles and oligopeptides

AU - Du, Jianjun

AU - Sun, Yinghui

AU - Jiang, Lin

AU - Cao, Xuebo

AU - Qi, Dianpeng

AU - Yin, Shengyan

AU - Ma, Jan

AU - Boey, Freddy Y.C.

AU - Chen, Xiaodong

PY - 2011/5/23

Y1 - 2011/5/23

N2 - A colorimetric detection system for Hg2+ in aqueous media is developed with high selectivity and sensitivity based on the mixing of gold nanoparticles and oligopeptides. Oligopeptides with cysteine (Cys) at both ends normally aggregate gold nanoparticles, which can be disturbed by Hg2+ through formation of an oligopeptide-Hg2+ complex.

AB - A colorimetric detection system for Hg2+ in aqueous media is developed with high selectivity and sensitivity based on the mixing of gold nanoparticles and oligopeptides. Oligopeptides with cysteine (Cys) at both ends normally aggregate gold nanoparticles, which can be disturbed by Hg2+ through formation of an oligopeptide-Hg2+ complex.

KW - colorimetry

KW - gold

KW - mercury

KW - nanoparticles

KW - oligopeptides

UR - http://www.scopus.com/inward/record.url?scp=79956354137&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79956354137&partnerID=8YFLogxK

U2 - 10.1002/smll.201002270

DO - 10.1002/smll.201002270

M3 - Article

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SN - 1613-6810

VL - 7

SP - 1407

EP - 1411

JO - Small

JF - Small

IS - 10

ER -

Flexible colorimetric detection of mercuric ion by simply mixing nanoparticles and oligopeptides

Abstract

ASJC Scopus Subject Areas

Keywords

Access to Document

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