DiOC5(3) and DiOC6(3) are two of the most widely used carbocyanine dyes used for membrane potential measurements.
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The styryl dye RH414 is a fast-responding potentiometric probe that is primarily used for functional imaging of neurons.
RH421 is a fast responding membrane potential dye, exhibiting >20% fluorescence change per 100 mV on neuroblastoma cells.
The styryl dye RH237 is a fast-responding potentiometric probe that is primarily used for functional imaging of neurons.
DiO/DPA Membrane Potential Detection Kit
DiO/DPA is a highly sensitive FRET-based dye system that reports membrane potential change on submillisecond time scale.
Di-4-ANEPPS is a fast-responding membrane potential dye. Changes in the membrane potential of the cell correlate with changes in the fluorescence excitation intensity of the dye.