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. 2021 Jul 27;8(8):105. doi: 10.3390/bioengineering8080105

Figure 2.

Figure 2

Physicochemical characterization of PCL RES. (A) Fiber diameter of PCL RES before and after air plasma treatment (N = 3, n = 15). (B) Tensile strength of PCL RES controls and loaded with bioactive compounds. (C) DCS of PCL RES loaded with bioactive compounds. (D) Contact angle of PCL RES loaded with bioactive compounds, before and after air plasma treatment. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001. N = 2, n = 3.