By Yongmei, Zheng

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2°. 6°. 27 The layered poly(N-isopropylacrylamide)-nanoclay (PNIPAM-nanoclay) hydrogel composite film was fabricated, as shown in Fig. 20a. The nanoclay platelets, the PNIPAM monomer, and the initiator were assembled through vacuum filtration. 3°. The AFM image shows the typical hierarchical micro-/nanoscale structure on the surface under water, which plays a great role in its underwater superoleophobicity. 20 (a) Vacuum-assisted infiltration process for fabricating nacrelike organic/inorganic composite film.

36. When immersing the FTS-derived surface into the water, the oil droplet spread out quickly once it contacted the surface. As well known, the wettability of a surface is governed by the surface free-energy and the surface roughness. SEM images show that the FTS-derived surface is composed of nanofibers and microbumps, which crisscross each other and form a 3D network architecture. 1°, respectively. (c) While under water, the oil droplet spread out when contact with the surface, indicating the surface is superoleophilic under water.

56. Zhao Y, Hu C, Hu Y, Cheng H, Shi G, Qu L (2012) A versatile, ultralight, nitrogen-doped graphene framework, Angew Chem Int Ed, 51(45), 11371–11375. 57. Reynolds JG, Coronado PR, Hrubesh LW (2001) Hydrophobic aerogels for oil-spill clean up—synthesis and characterization, J Non-Cryst Solids, 292(1–3), 127–137. 58. Venkateswara Rao A, Hegde ND, Hirashima H (2007) Absorption and desorption of organic liquids in elastic superhydrophobic silica aerogels, J Colloid Interf Sci, 305(1), 124–132. 59.

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Bio-inspired wettability surfaces : developments in micro- by Yongmei, Zheng
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