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. 2021 Mar 4;6(10):6861–6870. doi: 10.1021/acsomega.0c06057

Figure 2.

Figure 2

Physical characterization of the composite hydrogel. (A) Homogeneous solution was poured into culture dishes and shaken until evenly dispersed. (B) Samples were cut into dumbbells for the tensile test. (C) Photo showing the setup of the tensile test. (A–C) Photograph courtesy of Wei Zhou. Copyright 2020. (D) Tensile modulus and (E) compressive strength of the composite hydrogel samples, including 1, 2, and 4 w/v % PAL and no PAL as the control group. Data are the mean ± standard deviation (n = 5). (F) Swelling ratio of the composite hydrogel samples in PBS (pH = 7.4) at 37 °C.