Fig. 5. (a, d, and g) TPM and (b, e, and h) OPM images of HepG2 cells co-labeled with SE1 (2 μM) and organelle trackers. (c, f, and i) Merged images. Excitation wavelengths for TPM and OPM are 740 nm and 552 nm, respectively. Scale bars = (a and d) 19 and (g) 23 μm.