Issue 46, 2008
From the journal:

Chemical Communications

A simple and sensitive colorimetric pH meter based on DNA conformational switch and gold nanoparticle aggregation†

Cuie Chen,ab   Guangtao Song,ab   Jinsong Ren*a  and  Xiaogang Qua  

* Corresponding authors

a State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun
E-mail: jren@ciac.jl.cn

b Graduate School of the Chinese Academy of Sciences, Changchun

Abstract

A simple and rapid colorimetric pH meter has been developed based on the conformational switch of i-motif DNA and non-crosslinking AuNP aggregation, the average accuracy of the nano-meter was found to be ±0.04 pH unit across the physiological operating range.

Graphical abstract: A simple and sensitive colorimetric pH meter based on DNA conformational switch and gold nanoparticle aggregation

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Article information

DOI
https://doi.org/10.1039/B812660G
Article type
Communication
Submitted
23 Jul 2008
Accepted
22 Sep 2008
First published
14 Oct 2008

Chem. Commun., 2008, 6149-6151

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A simple and sensitive colorimetric pH meter based on DNA conformational switch and gold nanoparticle aggregation

C. Chen, G. Song, J. Ren and X. Qu, Chem. Commun., 2008, 6149 DOI: 10.1039/B812660G

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