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  • Title: Spectral Properties of Fluorogenic Thiophene-derived Triarylmethane Dyes.
    Author: Stensrud KF, Zanotti KJ, Waggoner AS, Armitage BA.
    Journal: Photochem Photobiol; 2019 Jan; 95(1):406-410. PubMed ID: 30339278.
    Abstract:
    Spectral properties and fluorogenic behaviors of five novel thiophene variants of malachite green (MG), termed MGTs, were determined. Appreciable changes as a function of homologation and substitution pattern, including absorption band positions and intensities and fluorescence quantum yields were observed. In particular, the shorter wavelength y-band absorption was found to shift over a nearly 200 nm range based on aryl group variation, allowing fine-tuning of the excitation wavelength for these dyes. In addition, the fluorescence intensity of some MGTs increased significantly (up to 4600-fold) when the dye was bound to a cognate protein partner, which is potentially useful for cell imaging studies.
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