Fig. 10.

CTP proliferation on PDMS post microtextures and corresponding smooth surfaces after 9 days of culture. (a) All post microtextures had increased numbers of cells compared to the smooth surfaces. The maximum number of cells was observed on the post microtextures with 20 µm height (H) and 10 µm inter-space (IS) (20H-10IS), compared with the number of those on the smooth surfaces (p < 0.05). For the same height, post microtextures with 10 µm inter-space have shown highest cell numbers. For the same inter-space, post microtextures with 20 µm height have shown highest cell numbers. (b) Post microtextures with 10 µm height and 10 µm inter-space (10H-10IS) have shown cell numbers normalized to surface area that are nearly three times greater than that on the smooth surface, while 40 µm height and 20 µm inter-space (40H- 20IS) post microtextures exhibited the lowest cell number/unit area. For the same height, post microtextures with 10 µm and 40 µm inter-spaces have shown higher cell numbers while 20 µm inter-space have shown lowest cell numbers. For the same inter-space, post microtextures with 40 µm height have shown lowest cell numbers. * denotes statistical significance compared to other surfaces (p < 0.05).