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. Author manuscript; available in PMC: 2009 Dec 15.
Published in final edited form as: Nat Mater. 2009 Jan;8(1):15–23. doi: 10.1038/nmat2344

Figure 4. Examples of surfaces with micro- or nanoscale heterogeneity.

Figure 4

a, Biphasic discs with smooth and rough surface; scale bar, 1 μm (image: Joerg Lahann). b, Pillar arrays for mapping force of epithelial cell migration134; scale bar, 5 μm (© 2005 PNAS). c, Asymmetrically coated particles136; scale bar, 5 μm (© 2003 RSC). d, Micropatterned particles114; scale bar, 100 μm (© 2007 PNAS). e, Control of spreading of an endothelial cell through a micropatterned substrate27; scale bar, 10 μm (© 1997 AAAS).