Fig. 6: Histology and in vivo localization analysis.

a Histological examination of mouse cornea tissue sections with hematoxylin and eosin (H&E) staining for different treatment groups (scale bar = 50 µm). b Localization image of 1% GC-EB-VOR-Cy5.5 in mouse corneal tissue by fluorescence microscopy and histological examination of cornea tissue sections (H&E). Blue (DAPI) represents the nucleus, while red shows that the nanomaterial GC-EB-VOR was distributed in the full thickness of the cornea. Scale bar = 50 µm.