Abstract
Advanced fluorescence microscopy including single-molecule localization-based super-resolution imaging techniques requires bright and photostable dyes or proteins as fluorophores. The photophysical properties of fluorophores have been proven to be crucial for super-resolution microscopy’s localization precision and imaging resolution. Fluorophores TAMRA and Atto Rho6G, which can interact with macrocyclic host cucurbit[7]uril (CB7) to form host-guest compounds, were found to improve the fluorescence intensity and lifetimes of these dyes. We enhanced the localization precision of direct stochastic optical reconstruction microscopy (dSTORM) by introducing CB7 into the imaging buffer, and showed that the number of photons as well as localizations of both TAMRA and Atto Rho6G increase over 2 times.
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Zhang, M., Gao, J., Chen, J. et al. Enhanced dSTORM imaging using fluorophores interacting with cucurbituril. Sci. China Chem. 59, 848–852 (2016). https://doi.org/10.1007/s11426-015-0535-0
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DOI: https://doi.org/10.1007/s11426-015-0535-0