Figure 8.

Schematic diagrams of the wetting model of the mesh film coated by ZnO nanorod arrays. (a)The coated mesh is impermeable to water, and (b) the coated shows good oil permeability. O is the center of the spherical cap of the meniscus; O1 and O2 are the cross section center of the mesh.

Li et al. Nanoscale Research Letters 2013 8:183   doi:10.1186/1556-276X-8-183
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