5 years ago

Frontispiece: Tuning the Sensitivity of Fluorescent Porphyrin Dimers to Viscosity and Temperature

Frontispiece: Tuning the Sensitivity of Fluorescent Porphyrin Dimers to Viscosity and Temperature
Maryam Qurashi, Aurimas Vyšniauskas, Milan Balaz, Dong Ding, Marina K. Kuimova, Harry L. Anderson, Igor Boczarow
Dual viscosity and temperature sensors based on the porphyrin dimer structure are investigated. In these dyes, often called “molecular rotors”, the intramolecular rotation of the porphyrin rings is viscosity and temperature dependent. Due to their unique photophysical properties, the dimers are able to report on microscopic viscosity via their ratiometric fluorescence spectra and on microscopic temperature via their fluorescence lifetimes. These molecular rotors are the only example of sensors allowing to measure viscosity and temperature simultaneously. Subtle changes on the periphery of the porphyrin rings were found to dramatically change the nature of the environmental sensitivity of porphyrin dimer-based rotors. For more information, see the Full Paper by M. Kuimova et al. on page 11001 ff.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201784664

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