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. Author manuscript; available in PMC: 2018 Dec 1.
Published in final edited form as: Small. 2017 Nov 2;13(47):10.1002/smll.201701949. doi: 10.1002/smll.201701949

Figure 4.

Figure 4

Characterizations of density, porosity, hydrophilicity, tensile, and degradation properties of PLA/CNT fibers. A) Density and porosity of PLA/CNT fibers. B) Water absorption rates and contact angle images of fibers with different CNT concentrations. C) Tensile properties of PLA/CNT fibers with different CNT concentrations. D) Degradation behavior of fibers. E) SEM images showing morphological changes of PLA/CNT fibers with 0, 0.2, 0.4, and 0.8 mg mL−1 CNT concentrations for up to 12 weeks. Insets depict the high-resolution micrograph of the electrospun fibers. Results are presented as means ± standard deviations (n = 3; *p < 0.05, **p < 0.01, and ***p < 0.001).