Change of pH indicator’s pKa value via molecular imprinting

Chengdu Liang; Michael J. Weaver; Sheng Dai

doi:10.1039/B203496D

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Change of pH indicator’s pK_a value via molecular imprinting†

Chengdu Liang,^ab Michael J. Weaver^a and Sheng Dai*^a

Author affiliations

* Corresponding authors

^a Chemical Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN, USA

^b Department of Chemistry, University of Tennessee, Knoxville, TN, USA

Abstract

The pK_a value of the indicator is significantly changed up to several orders of magnitude by the imprinting synthesis; this fine-tuning of the reactivity for pH indicators via the imprinting synthesis may find novel applications in fabricating pH sensors with tailored pK_a values.

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Supplementary files

Adsorption isotherms, schematic of experimental setup, FTIR spectra of doped sol–gel glasses, SAXS curves, UV–vis spectra of TD-MR and its protonated form, structure of TD-MR, comparison of template environments, SEM images and photograph of imprinted and nonimprinted sol–gel glasses PDF (312K)

Article information

DOI: https://doi.org/10.1039/B203496D
Article type: Communication
Submitted: 11 Apr 2002
Accepted: 11 Jun 2002
First published: 27 Jun 2002

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Chem. Commun., 2002, 1620-1621

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Change of pH indicator’s pK_a value via molecular imprinting

C. Liang, M. J. Weaver and S. Dai, Chem. Commun., 2002, 1620 DOI: 10.1039/B203496D

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