Fig. 2
From: Photothermal sensitive nanocomposite hydrogel for infectious bone defects

The selection of GelMA concentration in hydrogels. a General view of contraction behavior at elevated temperatures across different GelMA concentrations. b FT-IR analysis of hydrogel components. c SEM micrographs of hydrogel structures at various GelMA concentrations (scale bar = 500 μm). d Volume ratios at distinct GelMA concentrations. e Swelling ratios at distinct GelMA concentrations. f Stress-strain curves of hydrogels by GelMA concentration. g Young's modulus of hydrogels across concentrations. *P < 0.05. One-way ANOVA (n = 3). h Porosity and (i) pore sizes in hydrogels at different GelMA concentrations. *P < 0.05. Unpaired t-test, two-tailed (n = 3). Error bars represent mean ± SD