Fig. 3
From: Biomimetic approaches with smart interfaces for bone regeneration
Biomimetic apatite coating formed on surface functionalized polymeric substrates (a): poly(methyl methacrylate) (ref: 121, with permission from Elsevier); (b):chitosan (ref: 120; with permission from Elsevier); (c): poly(vinyl alcohol) with permission from Elsevier (ref: 122); (d): poly(hydroxy ethyl methacrylate-co-methyl methacrylate); (e): high magnification image of (d)