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

Figure 6.

Figure 6

(a) Chemical structures of fluorescent probe 38 and sensing mechanisms to detect esterase activity and cell viability. (b) Fluorescent imaging of TPC1 cells stained with 38 at different incubation times ((A,F,K) 5 min; (B,G,L) 15 min; (C,H,M) 30 min; (D,I,N) 45 min; (E,J,O) 60 min) in different fluorescent channels ((A–E) yellow channel (525–585 nm); (F,J) red channel (625–685 nm) and (K–O) merge image). λex = 490 nm. Scale bar = 10 μm [34,39]. Reprinted with permission from [39] Copyright © 2018 American Chemical Society.