SynaptoProbe Green is a green fluorescent dye commonly used to study synaptic activity at synapses and neuromuscular junctions by staining synaptic vesicles. This water-soluble, non-toxic dye is initially nonfluorescent in aqueous medium but becomes highly fluorescent when embedded in the outer leaflet of cell membranes. During neurotransmitter release, it internalizes within recycled synaptic vesicles, staining nerve terminals.
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