Issue 19, 2012
From the journal:

Chemical Communications

Tunable, colorimetric DNA-based pH sensors mediated by A-motif formation†

Sonali Saha,a   Kasturi Chakrabortya  and  Yamuna Krishnan*a  

* Corresponding authors

a National Centre for Biological Sciences, TIFR, GKVK, Bellary Road, Bangalore 560065, India
E-mail: yamuna@ncbs.re.in
Fax: +91-80-23666462
Tel: +91-80-23666181

Abstract

A colorimetric pH sensor has been developed based on GNP aggregation mediated by A-motif formation under acidic conditions. The pH response of the sensor can be tuned in the range of pH 2–5.5 by changing the length and the sequence of the A-motif forming poly dA tracts.

Graphical abstract: Tunable, colorimetric DNA-based pH sensors mediated by A-motif formation

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Article information

DOI
https://doi.org/10.1039/C2CC16347K
Article type
Communication
Submitted
12 Oct 2011
Accepted
03 Jan 2012
First published
05 Jan 2012

Chem. Commun., 2012,48, 2513-2515

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Tunable, colorimetric DNA-based pH sensors mediated by A-motif formation

S. Saha, K. Chakraborty and Y. Krishnan, Chem. Commun., 2012, 48, 2513 DOI: 10.1039/C2CC16347K

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