VoltageFluor dyes and fluorescence lifetime imaging for optical measurement of membrane potential.
VoltageFluor dyes and fluorescence lifetime imaging for optical measurement of membrane potential.
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DOI:
10.1016/bs.mie.2021.02.009
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发表时间:
2021
影响因子:
--
通讯作者:
Miller EW
中科院分区:
文献类型:
--
作者:
Gest AMM;Yaeger-Weiss SK;Lazzari-Dean JR;Miller EW
Membrane potential is a fundamental biophysical parameter common to all of cellular life. Traditional methods to measure membrane potential rely on electrodes, which are invasive and low-throughput. Optical methods to measure membrane potential are attractive because they have the potential to be less invasive and higher throughput than classic electrode based techniques. However, most optical measurements rely on changes in fluorescence intensity to detect changes in membrane potential. In this chapter, we discuss the use of fluorescence lifetime imaging microscopy (FLIM) and voltage-sensitive fluorophores (VoltageFluors, or VF dyes) to estimate the millivolt value of membrane potentials in living cells. We discuss theory, application, protocols, and shortcomings of this approach.
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