Abstract
A strategy for the rational design of a novel colorimetric sensor based on dithioerythritol-modified gold nanoparticles for the selective recognition of Hg2+ in aqueous media is presented. This approach relies on the combination of gold nanoparticles with Hg2+ through sulfur-Hg 2+-sulfur interaction. The gold nanoparticles showed high selectivity toward Hg2+ with binding-induced red shift in the absorption spectra, with no response to major interfering cations such as Pb 2+,Cd2+, and Cu2+ in the presence of ethylenediamine tetraacetic acid. The system responds to Hg2+ with a detection limit of 100 nM and might open a new avenue for the development of Hg2+ sensing probes.
| Original language | English |
|---|---|
| Pages (from-to) | 292-295 |
| Number of pages | 4 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 2 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2010 Jan 27 |
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Keywords
- Colorimetric
- Dithioerythritol
- Gold nanoparticles
- Ligand exchange
- Mercury
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Highly sensitive gold nanoparticle-based colorimetric sensing of mercury(II) through simple ligand exchange reaction in aqueous Media. / Kim, Yang Rae; Mahajan, Rakesh Kumar; Kim, Jong Seung; Kim, Hasuck.
In: ACS Applied Materials and Interfaces, Vol. 2, No. 1, 27.01.2010, p. 292-295.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Highly sensitive gold nanoparticle-based colorimetric sensing of mercury(II) through simple ligand exchange reaction in aqueous Media
AU - Kim, Yang Rae
AU - Mahajan, Rakesh Kumar
AU - Kim, Jong Seung
AU - Kim, Hasuck
PY - 2010/1/27
Y1 - 2010/1/27
N2 - A strategy for the rational design of a novel colorimetric sensor based on dithioerythritol-modified gold nanoparticles for the selective recognition of Hg2+ in aqueous media is presented. This approach relies on the combination of gold nanoparticles with Hg2+ through sulfur-Hg 2+-sulfur interaction. The gold nanoparticles showed high selectivity toward Hg2+ with binding-induced red shift in the absorption spectra, with no response to major interfering cations such as Pb 2+,Cd2+, and Cu2+ in the presence of ethylenediamine tetraacetic acid. The system responds to Hg2+ with a detection limit of 100 nM and might open a new avenue for the development of Hg2+ sensing probes.
AB - A strategy for the rational design of a novel colorimetric sensor based on dithioerythritol-modified gold nanoparticles for the selective recognition of Hg2+ in aqueous media is presented. This approach relies on the combination of gold nanoparticles with Hg2+ through sulfur-Hg 2+-sulfur interaction. The gold nanoparticles showed high selectivity toward Hg2+ with binding-induced red shift in the absorption spectra, with no response to major interfering cations such as Pb 2+,Cd2+, and Cu2+ in the presence of ethylenediamine tetraacetic acid. The system responds to Hg2+ with a detection limit of 100 nM and might open a new avenue for the development of Hg2+ sensing probes.
KW - Colorimetric
KW - Dithioerythritol
KW - Gold nanoparticles
KW - Ligand exchange
KW - Mercury
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UR - http://www.scopus.com/inward/citedby.url?scp=77954777710&partnerID=8YFLogxK
U2 - 10.1021/am9006963
DO - 10.1021/am9006963
M3 - Article
C2 - 20356248
AN - SCOPUS:77954777710
VL - 2
SP - 292
EP - 295
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 1
ER -