Representation of water droplets in different conditions. (a) Schematic figure of tiny water droplets sprayed from a nebulizer. (b) Tiny water droplets on CNTs/Si-μp surface. (c) Water droplets on CNTs/Si-μp after three time tests. (d) Water droplets on CNTs/Si surface.
He et al. Nanoscale Research Letters 2013 8:412 doi:10.1186/1556-276X-8-412