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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: Mater Sci Eng C Mater Biol Appl. 2018 Nov 30;97:1–11. doi: 10.1016/j.msec.2018.11.036

Fig. 1.

Fig. 1.

Morphological and physical properties of coxially structured PCL/gelatin fibres. (A) TEM images of PCL/gelatin fibres with a PCL-to-gelatin ratio of 1:5, 2.5:5 or 3.5:5. Clear core and sheath boundaries were identified. All scale bar shows 100 nm. (B) Quantitative analysis of fibre diameters. (C) Burst pressure for the tubular grafts consisting of coaxial PCL/gelatin fibres. (D) Compliance of these grafts. Graft compliance measurement shows the percent of vascular graft diameter change per 100 mm Hg. (E) Mass swelling ratio of PCL/gelatin fibres showing the hydrogel nature of the materials. Data represent mean ± SEM. n = 3–4 samples. * p < 0.05; *** p < 0.01, vs PCL:Gel (1:5). + p < 0.05, vs PCL:Gel (2.5:5).