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. 2023 Aug 27;28(17):6265. doi: 10.3390/molecules28176265

Figure 5.

Figure 5

(A) Structures and ESIPT response mechanism of probes 34ac for specific detection of esterase and (B) fluorescence microscopy images of HeLa cells incubated with fluorescent esterase probes (af) (34a exhibited dark green (d), 34b in yellow (e) and 34c in red (f) fluorescence) and bis(4-nitrophenyl) phosphate-BNPP (inhibitor) for intracellular esterase inhibition experiments (gl) [5]. Reprinted from publication [5], Copyright 2021, with permission from Elsevier.