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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]

PMID: 28480989

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