Complex stiffness gradient substrates for studying mechanotactic cell migration.

Kuo, Cheng-Hwa R; Xian, Jian; Brenton, James D; Franze, Kristian; Sivaniah, Easan · Adv Mater · 2012

basic_science · Level V

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Abstract

Polyacrylamide gels are cast upon a stiff support with controlled topography, resulting in a thin gel layer of variable height. The topographical profiles project a stiffness map onto the gel, resulting in controlled linear and non-linear 2D stiffness gradients. Fibroblasts, which migrate towards stiffer substrates, accumulate in areas with a gel thickness below 15 μm.

Medical subject headings