Fig. 1: Fabrication and characterization of decorated BC meta-skin.
a Illustration of the fabrication process of the superhydrophobic BC meta-skin. b Illustration of the hydrophilicity of BC nanofibers, where the hydrophobic SiO2 nanoparticles can hardly enter into BC hydrogel. c Illustration of the ethanol-assisted method that allows SiO2 nanoparticles to easily diffuse into the BC alcogel and bond with BC fibers through intermolecular forces. d, e SEM images of the surface and sectional morphologies of the decorated BC meta-skin. f An optical image showing a BC meta-skin sample (4 × 4 cm2) resting on dandelion’s petals. The inset shows a strong ‘lotus effect’ on the sample surface, with the CA of a water droplet being 170.2°.
