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. 2011 Mar 30;5(1):013411. doi: 10.1063/1.3553235

Figure 11.

Figure 11

(a) Characteristic images of water droplets residing on the PDPAEMA functionalized hierarchically structured surface following immersion at pH 8.5, pH 2.5 (complete wetting), and again at pH 8.5. The scheme shows the protonation/deprotonation process of PDPAEMA. (b) Characteristic images of water droplets residing on the PDEAEMA functionalized artificially structured surface following immersion at pH 8, pH 3 (complete wetting), and again at pH 8. The scheme shows the protonation/deprotonation process of PDEAEMA. Reproduced with permission from E. Stratakis et al., Chem. Commun. (Cambridge) 46, 4136 (2010). Copyright 2010. The Royal Society of Chemistry.