Visual and colorimetric detection of Hg2+ by cloud point extraction with functionalized gold nanoparticles as a probe

Zhi-qiang Tan; Jing-fu Liu; Rui Liu; Yong-guang Yin; Gui-bin Jiang

doi:10.1039/B915237G

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Visual and colorimetric detection of Hg²⁺ by cloud point extraction with functionalized gold nanoparticles as a probe†

Zhi-qiang Tan,^a Jing-fu Liu,*^a Rui Liu,^a Yong-guang Yin^a and Gui-bin Jiang^a

Author affiliations

* Corresponding authors

^a State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
E-mail: jfliu@rcees.ac.cn
Tel: +86-10-6284-9192

Abstract

Association with Hg²⁺ enhances the hydrophobicity and triggers the cloud point extraction of ∼4 nm-diameter gold nanoparticle probes functionalized with mercaptopropionic acid and homocystine, which results in the color change of the TX-114-rich phase from colorless to red, and therefore provides a novel approach for visual and colorimetric detection of Hg²⁺ with ultrahigh sensitivity and selectivity.

Download options Please wait...

Supplementary files

Synthesis and characterization of AuNPs, cloud pointextraction procedure, effects of parameters on the extractionefficiency PDF (319K)

Article information

DOI: https://doi.org/10.1039/B915237G
Article type: Communication
Submitted: 27 Jul 2009
Accepted: 22 Sep 2009
First published: 06 Oct 2009

Download Citation

Chem. Commun., 2009, 7030-7032

Permissions

Request permissions

Visual and colorimetric detection of Hg²⁺ by cloud point extraction with functionalized gold nanoparticles as a probe

Z. Tan, J. Liu, R. Liu, Y. Yin and G. Jiang, Chem. Commun., 2009, 7030 DOI: 10.1039/B915237G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

Chemical Communications