Atomic force microscopy has been applied to an acrylate polymer microarray to achieve a full topographic characterisation. This process discovered a small number of hydro-responsive materials created from monomers with disparate hydrophilicities that show reversibility between pitted and protruding nanoscale topographies.
Hook, A. L., Yang, J., Chen, X., Roberts, C. J., Mei, Y., Anderson, D. G., …Davies, M. C. (2011). Polymers with hydro-responsive topography identiﬁed using high throughput AFM of an acrylate microarray. Soft Matter, 7, doi:10.1039/c1sm06063e