Table 1.

List of some sensors used to measure and detect neuronal Zn²⁺ signals.

localization	name	dissociation constant (Kd)	application	references
cytosol	ZP1	0.7 nM	hippocampal slices	[35,42–44]
			primary neurons
	ZP3	0.7 nM	hippocampal neurons and slices	[30,45]
	ZnAF-2DA	2.7 nM	hippocampal slices	[46]
	FluoZin-3 AM	15 nM	primary neurons	[33,47–51]
			hippocampal slices
	GZnP3	1.3 nM	primary neurons	[52]
mitochondria	RhodZin-3	65 nM	primary neurons	[39,53–57]
			PC12 cells
	Mito-ZapCY1	1.6 pM	C. elegans PVD neurons	[58,59]
lumen of synaptic vesicles and acid compartments	TSQ	155 nM–48 µM	hippocampal slices	[35,60–66]
	Zinquin	620 nM	primary neurons	[60,64–67]
	SpiroZin-2	3.6 nM	hippocampal slices	[51,68]
extracellular regions (synaptically released Zn2+)	FluoZin-3	15 nM	hippocampal slices	[33,69,70]
	ZP4	0.65 nM	hippocampal slices	[71–73]
			primary neurons
	ZnAF-2	2.7 nM	hippocampal slices	[34,42,46,74–77]
	NewPort Green DCF	1 μM	hippocampal slices	[78–81]
	LZ9	0.57 nM	coronal brain slices containing dorsal cochlear nucleus	[82–84]