Fluorescence lifetime correlation spectroscopy: Basics and applications.

Autor: Ghosh A; Third institute of Physics - Biophysics, Georg August University, 37077 Göttingen, Germany., Karedla N; Third institute of Physics - Biophysics, Georg August University, 37077 Göttingen, Germany., Thiele JC; Third institute of Physics - Biophysics, Georg August University, 37077 Göttingen, Germany., Gregor I; Third institute of Physics - Biophysics, Georg August University, 37077 Göttingen, Germany., Enderlein J; Third institute of Physics - Biophysics, Georg August University, 37077 Göttingen, Germany. Electronic address: jenderl@gwdg.de.
Jazyk: angličtina
Zdroj: Methods (San Diego, Calif.) [Methods] 2018 May 01; Vol. 140-141, pp. 32-39. Date of Electronic Publication: 2018 Feb 16.
DOI: 10.1016/j.ymeth.2018.02.009
Abstrakt: This chapter presents a concise introduction into the method of Fluorescence Lifetime Correlation Spectroscopy (FLCS). This is an extension of Fluorescence Correlation Spectroscopy (FCS) that analyses fluorescence intensity fluctuations from small detection volumes in samples of ultra-low concentration. FCS has been widely used for investigating diffusion, conformational changes, molecular binding/unbinding equilibria, or chemical reaction kinetics, at single molecule sensitivity. In FCS, this is done by calculating intensity correlation curves for the measured intensity fluctuations. FLCS extends this idea by calculating fluorescence-lifetime specific intensity correlation curves. Thus, FLCS is the method of choice for all studies where a parameter of interest (conformational state, spatial position, molecular environmental condition) is connected with a change in the fluorescence lifetime. After presenting the theoretical and experimental basis of FLCS, the chapter gives an overview of its various applications.
(Copyright © 2018 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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