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Issue 14, 2016
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Tuning BODIPY molecular rotors into the red: sensitivity to viscosity vs. temperature

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Abstract

Viscosity variations in the microscopic world are of paramount importance for diffusion and reactions. In the last decade a new class of fluorescent probes for measuring viscosity has emerged termed ‘molecular rotors’, which allows quantitative mapping of viscosity in microscopically heterogeneous environments. Here we attempt to tune the absorption and emission of one such ‘molecular rotor’ based on the BODIPY fluorescent core into the red region of the spectrum, to allow better compatibility with the ‘tissue optical window’ and imaging of cells and tissues. We consequently find that our red-emitting BODIPY fluorophores are sensitive to environmental temperature rather than to viscosity, thus suggesting a new prototype for a ‘molecular thermometer’.

Graphical abstract: Tuning BODIPY molecular rotors into the red: sensitivity to viscosity vs. temperature

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Publication details

The article was received on 16 Sep 2015, accepted on 30 Oct 2015 and first published on 09 Nov 2015


Article type: Paper
DOI: 10.1039/C5TC02954F
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J. Mater. Chem. C, 2016,4, 2828-2833
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    Tuning BODIPY molecular rotors into the red: sensitivity to viscosity vs. temperature

    T. T. Vu, R. Méallet-Renault, G. Clavier, B. A. Trofimov and M. K. Kuimova, J. Mater. Chem. C, 2016, 4, 2828
    DOI: 10.1039/C5TC02954F

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