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. Author manuscript; available in PMC: 2019 Oct 1.
Published in final edited form as: Biomaterials. 2018 Jul 30;181:126–139. doi: 10.1016/j.biomaterials.2018.07.047

Scheme 1.

Scheme 1

Fabrication of patterned hydrogel substrate using photolithography. a) Micro-patterning on silicon wafer via photolithography and PDMS preparation; b) Hydrogel substrate fabrication using gelatin mold stamped against PDMS; and c) Microscopic images showing pattern maintenance through PDMS stamp - Gelatin mold - Hydrogel substrate.