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7.1 Methods and mechanisms of surface tension change 109
Figure 7.14. Schematic illustration of (A) molecular structures of keratin sulfate and chondroitin sulfate, and (B)
manipulating activity of osteoblasts on Ti-6Al-4 V orthopedic implant surface based on poly(3,4-ethylenedioxy-
thiophene)/glycosaminoglycans by electrical stimulus-responsive wettability. [Adapted, by permission, from
Chen, D; Gao, M; Fu, Y; Xu, X; Hao, Z, Electrochim. Acta, 182, 841-6, 2015.]
Figure 7.15. Synthetic route of formation of light-responsive silica nanoparticles. [Adapted, by permission, from
Lin, B; Zhou, S, Appl. Surf. Sci., 359, 380-7, 2015.]
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orthopedic implants. Unlike small macromolecular dopants, glycosaminoglycans as
biomacromolecules are expected to only move around in polymeric substance but not
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through the surface when responding to the external stimulus. The wettability related to
