Characterization of mechanical properties and surface chemistry.
(a–b) Fiber diameter and pore diameter analysis for PCL (6 wt/v%), CA (10
wt/v%), and CA/SPH (10 wt/v% / 5 wt/v%) nanofiber scaffolds. Bars represent
standard error, n=10 from 3 productions. (c) Stiffness
measurement for PCL (6 wt/v%), CA (10 wt/v%), and CA/SPH (10 wt/v% / 5 wt/v%)
nanofibers in the wet state on the longitudinal and transverse directions. Bars
represent standard error, n=5 from 3 productions, * indicates
p < 0.05. (d–f)AFM images of (d) CA (10
wt/v%) and (e) CA/SPH (10 wt/v% / 5 wt/v%) nanofibers with (f) roughness
(Ra) of nanofibers
(n=3, FOV=3 from 3 productions). (g) Bright field images of
water droplets on CA (10 wt/v%) and CA/SPH (10 wt/v% / 5 wt/v%) cast films with
contact angle analysis (n=3 from 3 productions). Dots delimit
water droplet and film. Scales are 5 mm. (h) In vitro water absorption
measurements by weight gain (n=6 from 3 productions). Bars
represent standard error, * indicates p < 0.05.