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. Author manuscript; available in PMC: 2021 Oct 13.
Published in final edited form as: Nat Nanotechnol. 2020 Nov 2;16(1):96–103. doi: 10.1038/s41565-020-00784-1

Extended Data Fig. 1.

Extended Data Fig. 1.

Schematic of Lysosomal Vmem measurement, Imaging protocol of organelles labeled with VoltairIM. resting organelles are imaged in G and R channels, neutralized with valinomycin-monensin and second set of images are acquired in G and R channels. Resting membrane potential of the organelle is calculated by normalizing G/R values from untreated lysosomes (xi) to neutralized lysosomes (yi).