Table 1.

Composition, fiber diameter, thermal and mechanical properties of electrospun nanofibers.

Fiber code	Biomolecules	Fiber diameter (nm)	Tma (ºC)	ΔHma (J/g)	Xcb (%)	σTSc(MPa)	Еd (MPa)	εbd (%)
P	N.A.	523 ± 129	34	36.1	28.8	7.4 ± 1.1	6.8 ± 1.5	138 ± 18
PC	collagen I from calf skin	444 ± 67	35	27.5	24.3	5.8 ± 0.9	4.3 ± 0.7	184 ± 24

^aT_m (melting temperature) and ΔH_m (enthalpy change) determinated by the first heating run of DSC curves.

^bCrystallinity (X_c) determinated by the equation: $\mathrm{X}\%=\Delta H_{\text{m}}/\Delta H_m^0\times 100\%$ where $\Delta H_{\text{m}}^0$ is 139.5 J/g for 100% crystalline PCL.

^cσ_TS = Tensile strength, ε_b = elongation and Е = Young’s modulus determined by tensile test. Each experiment was done independently for 4 times.