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. Author manuscript; available in PMC: 2020 Aug 7.
Published in final edited form as: Adv Funct Mater. 2017 Sep 20;28(12):1702009. doi: 10.1002/adfm.201702009

Figure 2.

Figure 2.

Chip design optimization. A) Compressive modulus of three different concentrations of GelMA/PEG hydrogel composites (* P < 0.05). B) Reswelling profiles of three different concentrations of GelMA/PEG hydrogel composites (* P < 0.05). C) Microstructure of GelMA/PEG composite hydrogel captured using scanning electron microscopy. D) Schematic of chip design E) Top view of sample chip with GelMA/PEG composite hydrogel section stained green. F) Optical image of top view of chip showing 100μm channel and 100μm pores. G) Cross-sectional view of sample chip with GelMA/PEG section stained green. H) Scanning electron microscope image of PDMS membrane with 100μm pores with 400μm spacing.