One of the most popular single-molecule approaches in biological science is single-molecule fluorescence microscopy, which will be the subject of the following section of this volume. Fluorescence methods provide the sensitivity required to study biology on the single-molecule level, but they also allow access to useful measurable parameters on time and length scales relevant for the biomolecular world. Before several detailed experimental approaches will be addressed, we will first give a general overview of single-molecule fluorescence microscopy. We start with discussing the phenomenon of fluorescence in general and the history of single-molecule fluorescence microscopy. Next, we will review fluorescent probes in more detail and the equipment required to visualize them on the single-molecule level. We will end with a description of parameters measurable with such approaches, ranging from protein counting and tracking, single-molecule localization super-resolution microscopy, to distance measurements with Förster resonance energy transfer and orientation measurements with fluorescence polarization.
CITATION STYLE
van den Wildenberg, S. M. J. L., Prevo, B., & Peterman, E. J. G. (2024). A Brief Introduction to Single-Molecule Fluorescence Methods. In Methods in Molecular Biology (Vol. 2694, pp. 111–132). Humana Press Inc. https://doi.org/10.1007/978-1-0716-3377-9_6
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