Fig. 1 | Scientific Reports

Fig. 1

From: Hierarchical micro-nano topographies to control Bacteria and mesenchymal stem cells biological responses

Fig. 1

SEM images of the different topographies under study fabricated in (polydimethyl siloxane) PDMS and (poly(methyl methacrylate)) PMMA. The topographies are classified according to their aspect ratio as LAR (Low Aspect Ratio), HAR (High Aspect Ratio) microtopographies and ME (Moth-eye) nanocones. The hierarchical topographies include a combination of the LAR features with ME nanocones. The geometrical arrangements are either HPA (Hexagonal Pillar Arrangement), SPA (Square Pillar Arrangement) and Gratings.

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