Fabrication of pocket-like hydrogel microstructures through photolithography.

Sumaru, Kimio; Takagi, Toshiyuki; Morishita, Kana; Satoh, Taku; Kanamori, Toshiyuki · Soft Matter · 2018

basic_science · Level V

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Abstract

Photolithographic fabrication of unique microstructures composed of flexible hydrogel sheets is proposed and demonstrated by using photo-acid-generating poly(methyl methacrylate). Crosslinking of a hydroxyl-rich polymer and lifting off of the crosslinked polymer layer from the substrate are controlled respectively in an area-selective manner upon micropatterned light irradiation, and various pocket-like microstructures are fabricated resultantly.