Super-resolution RESOLFT microscopy of lipid bilayers using a fluorophore-switch dyad

Frawley AT., Wycisk V., Xiong Y., Galiani S., Sezgin E., Urbančič I., Vargas Jentzsch A., Leslie KG., Eggeling C., Anderson HL.

© The Royal Society of Chemistry. Dyads consisting of a photochromic switch covalently linked to a fluorescent dye allow the emission from the dye to be controlled by reversible photoisomerization of the switch; one form of the switch quenches fluorescence by accepting energy from the dye. Here we investigate the use of dyads of this type for super-resolution imaging of lipid bilayers. Giant unilamellar vesicles stained with the dyads were imaged with about a two-fold resolution-enhancement compared with conventional confocal microscopy. This was achieved by exciting the fluorophore at 594 nm, using a switch activated by violet and red light (405/640 nm). This journal is

DOI

10.1039/d0sc02447c

Type

Journal article

Journal

Chemical Science

Publication Date

07/09/2020

Volume

11

Pages

8955 - 8960

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