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Fluorescence microscopy images of HCEpiC incubated with CG-GS-FITC-LDH (1:1) nanocomposites (a), CG-GS-FITC-LDH (1:0.5) nanocomposites (b), physical mixture of CG-GS and FITC solution (0.00038% [w/v]) (c), FITC-LDH nanoparticles (d) and FITC solution (e) at different times. Scale bar =25 μm.
Abbreviations: CG-GS, chitosan-glutathione-glycylsarcosine; FITC, fluorescein isothiocyanate Isomer I; HCEpiC, human corneal epithelial primary cells; LDH, layered double hydroxides.
