Fig. 1

Corneal nanocoatings in Bombyx moths. a–c Photographs of B. mandarina (a), B. mori from Vietnam (b) and B. mori from Japan (c). d–f Representative AFM scans (5 × 5 µm) of corneal surfaces of the Bombyx species presented in a–c. The height dimension of the surface (in nm) is indicated by the color scale next to (f) with the mean set to zero. g, h Calculation of the height of protrusions (from the lowest point up to the next highest point (g) and their broadness (h) of B. mandarina (in red), B. mori [Vn] (in orange), and B. mori [Jp] (in green); n = 50