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Issue 5, 2009
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Photonic crystal borax competitive binding carbohydrate sensing motif

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Abstract

We developed a photonic crystal sensing method for diol containing species such as carbohydrates based on a poly(vinyl alcohol) (PVA) hydrogel containing an embedded crystalline colloidal array (CCA). The polymerized CCA (PCCA) diffracts visible light. We show that in the presence of borax the diffraction wavelength shifts as the concentration of glucose changes. The diffraction shifts result from the competitive binding of glucose to borate, which reduces the concentration of borate bound to the PVA diols.

Graphical abstract: Photonic crystal borax competitive binding carbohydrate sensing motif

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Publication details

The article was received on 16 Jan 2009, accepted on 05 Feb 2009 and first published on 02 Mar 2009


Article type: Paper
DOI: 10.1039/B901017N
Citation: Analyst, 2009,134, 875-880
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    Photonic crystal borax competitive binding carbohydrate sensing motif

    Q. Cui, M. M. Ward Muscatello and S. A. Asher, Analyst, 2009, 134, 875
    DOI: 10.1039/B901017N

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