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Tuning the Sensitivity of Fluorescent Porphyrin Dimers to Viscosity and Temperature.


ABSTRACT: Conjugated porphyrin dimers have emerged as versatile viscosity-sensitive fluorophores that are suitable for quantitative measurements of microscopic viscosity by ratiometric and fluorescence lifetime-based methods, in a concentration-independent manner. Here, we investigate the effect of extended conjugation in a porphyrin-dimer structure on their ability to sense viscosity and temperature. We show that the sensitivity of the fluorescence lifetime to temperature is a unique property of only a few porphyrin dimers.

SUBMITTER: Vysniauskas A 

PROVIDER: S-EPMC5575558 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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Tuning the Sensitivity of Fluorescent Porphyrin Dimers to Viscosity and Temperature.

Vyšniauskas Aurimas A   Ding Dong D   Qurashi Maryam M   Boczarow Igor I   Balaz Milan M   Anderson Harry L HL   Kuimova Marina K MK  

Chemistry (Weinheim an der Bergstrasse, Germany) 20170613 46


Conjugated porphyrin dimers have emerged as versatile viscosity-sensitive fluorophores that are suitable for quantitative measurements of microscopic viscosity by ratiometric and fluorescence lifetime-based methods, in a concentration-independent manner. Here, we investigate the effect of extended conjugation in a porphyrin-dimer structure on their ability to sense viscosity and temperature. We show that the sensitivity of the fluorescence lifetime to temperature is a unique property of only a f  ...[more]

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