Fluorescence is one of the most powerful and commonly used tools in biophysical studies of biomembrane structure and dynamics that can be applied on different levels, from lipid monolayers and bilayers to living cells, tissues, and whole animals. Successful application of this method relies on proper design of fluorescence probes with optimized photophysical properties. These probes are efficient for studying the microscopic analogs of viscosity, polarity, and hydration, as well as the molecular order, environment relaxation, and electrostatic potentials at the sites of their location. Being smaller than the membrane width they can sense the gradients of these parameters across the membrane. We present examples of novel dyes that achieve increased spatial resolution and information content of the probe responses. In this respect, multiparametric environment-sensitive probes feature considerable promise.
CITATION STYLE
Demchenko, A. P., Duportail, G., Oncul, S., Klymchenko, A. S., & Mély, Y. (2015). Introduction to fluorescence probing of biological membranes. Methods in Molecular Biology (Clifton, N.J.), 1232, 19–43. https://doi.org/10.1007/978-1-4939-1752-5_3
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