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Issue 52, 2015
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Sulphate-selective optical microsensors: overcoming the hydration energy penalty

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Abstract

Novel membrane-free chemically modified polystyrene microspheres for the optical detection of sulphate in aqueous media are introduced. The working principle of this sensor is based on the surface mass-extraction equilibrium of the target species. This allows overcoming the strong hydration energy penalty, a typical problem for the detection of divalent anions. This optical sensor exhibits both enhanced sensitivity and selectivity, which allows the accurate detection of sulphate in biological samples. To illustrate these features the determination of sulphate in urine is presented.

Graphical abstract: Sulphate-selective optical microsensors: overcoming the hydration energy penalty

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The article was received on 20 Mar 2015, accepted on 20 Apr 2015 and first published on 21 Apr 2015


Article type: Communication
DOI: 10.1039/C5CC02350E
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Chem. Commun., 2015,51, 10377-10380

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    Sulphate-selective optical microsensors: overcoming the hydration energy penalty

    T. Guinovart, P. Blondeau and F. J. Andrade, Chem. Commun., 2015, 51, 10377
    DOI: 10.1039/C5CC02350E

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