Issue 37, 2012

Cationic polymers and aptamers mediated aggregation of gold nanoparticles for the colorimetric detection of arsenic(iii) in aqueous solution

Abstract

As(III) specifically interacts with an arsenic-binding aptamer to form an As(III)–aptamer complex, so that the following cationic polymer can aggregate gold nanoparticles (AuNPs) and cause a remarkable change in color, which enables the colorimetric detection of As(III) with high selectivity and a detection limit of 5.3 ppb.

Graphical abstract: Cationic polymers and aptamers mediated aggregation of gold nanoparticles for the colorimetric detection of arsenic(iii) in aqueous solution

Supplementary files

Article information

Article type
Communication
Submitted
17 Jan 2012
Accepted
15 Mar 2012
First published
15 Mar 2012

Chem. Commun., 2012,48, 4459-4461

Cationic polymers and aptamers mediated aggregation of gold nanoparticles for the colorimetric detection of arsenic(III) in aqueous solution

Y. Wu, S. Zhan, F. Wang, L. He, W. Zhi and P. Zhou, Chem. Commun., 2012, 48, 4459 DOI: 10.1039/C2CC30384A

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