Table 3.

Ratio of luminescence intensity of 590 nm to 550 nm in different cellular pH ranges before and after treatment with 20 μM nigericin (adapted with permission from Ref. [31]. Copyright (2017) American Chemical Society).

pH	Intensity Ratio	Untreated Cells		Nigericin Treated Cells
		No. of Events	% of Total Population	No. of Events	% of Total Population
7.2–7.5	<0.1	41	5	12	9
6.0–7.2	0.1–0.4	637	77	119	91
<6.0	>0.4	144	17	0	0