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. Author manuscript; available in PMC: 2014 May 21.
Published in final edited form as: ACS Appl Mater Interfaces. 2013 Feb 20;5(5):1673–1680. doi: 10.1021/am302690t

Figure 8.

Figure 8

(A) Photograph of a three-layer thiol-ene hydrogel formed from sequential visible light-mediated thiol-ene photopolymerization. PEG4NB macromer concentration was 10 wt% in each layer. Eosin-Y concentration in the bottom layer was 2.0 mM. 5 wt% of blue microparticles was added in the top layer for visualization purpose. (B) Photograph of an example small gel disc (left, 2 mm Dia. x 1 mm H) used to fabricate a thick gel coating (right, 6 mm Dia. x 6 mm H). (Note: gel in the left curled up due to partial drying)