Figure 19.

Schematic illustration of the process used to adjust contact angles. The scheme shows the different stages of the wetting behavior: (a) the nanotube surface; (b) superhydrophobicity after hydrophobic modification; (c) chain scission of the organic layer triggered by UV light and (d) leading finally to complete wetting. Reprinted with permission from [52]. Copyright 2005 Elsevier

Verplanck et al. Nanoscale Research Letters 2007 2:577-596   doi:10.1007/s11671-007-9102-4