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Issue 21, 2015
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NIR-emitting aza-BODIPY dyes – new building blocks for broad-range optical pH sensors

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Abstract

New aza-BODIPY indicators which cover the pH scale from 1.5 to 13 are presented. The new indicators feature absorption/emission bands in the red/near-infrared (NIR) spectral region, exhibit high molar absorption coefficients (∼ 80 000 M−1 cm−1) and show good quantum yields (∼20%). All dyes represent promising building blocks for the development of a broad-range sensor for various pH ranges. Combination of four of these pH indicators yields a pH sensor with an extended dynamic range from pH 2 to 9.

Graphical abstract: NIR-emitting aza-BODIPY dyes – new building blocks for broad-range optical pH sensors

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Publication details

The article was received on 10 Jul 2015, accepted on 02 Sep 2015 and first published on 03 Sep 2015


Article type: Communication
DOI: 10.1039/C5AN01389E
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Analyst, 2015,140, 7150-7153
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    NIR-emitting aza-BODIPY dyes – new building blocks for broad-range optical pH sensors

    M. Strobl, T. Rappitsch, S. M. Borisov, T. Mayr and I. Klimant, Analyst, 2015, 140, 7150
    DOI: 10.1039/C5AN01389E

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