Large Stokes shift benzothiazolium cyanine dyes with improved intramolecular charge transfer (ICT) for cell imaging applications
Chathura S. Abeywickrama
Abstract
efficient ICT and recent discoveries related to potentially useful live cell imaging applications of these asymmetric cyanine dyes. This article explores three interesting asymmetric benzothiazolium dye designs (D-π-A, π-A and D-π-2A) in detail while discussing their optical properties. The key advantage of these probes is the synthetic tunability of the probe's photophysical properties and cellular selectivity by simply modifying the donor (D) or the acceptor (A) group in the structure. These new asymmetric ICT fluorophore systems exhibit large Stokes' shifts, high biocompatibility, wash-free staining, red to NIR emission and facile excitation with commercially available laser wavelengths.
Topics & Concepts
CyanineStokes shiftFluorophoreFluorescenceIntramolecular forcePhotochemistryChemistryMaterials scienceNanotechnologyOptoelectronicsLuminescenceOpticsOrganic chemistryPhysicsPhotochemistry and Electron Transfer StudiesAdvanced Fluorescence Microscopy TechniquesLuminescence and Fluorescent Materials