. Author manuscript; available in PMC: 2015 Mar 1.

Published in final edited form as: Biofabrication. 2013 Dec 17;6(1):015002. doi: 10.1088/1758-5082/6/1/015002

Table 3.

Porosity estimations for electrospun coaxial fibre membranes based on gravimetry, calculated using Eq. 2 and Eq. 3. n=3.

	Electrospun time, min	2PU10GE	4PU10GE	6PU10GE	8PU10GE
Fibre Diameter (μm)		0.54±0.06	1.04±0.10	1.15±0.13	1.22±0.11
Fibre Bulk density (g/cm³)		-	1.34	1.34	1.32
Membrane Thickness (μm)	10	21.6±4.0	23.4±2.6	25.1±5.2	22.2±14.0
Membrane Thickness (μm)	40	56.8±4.9	40.3±5.7	36.0±5.4	67.7±6.7
Fibre packing density (g/cm³)	10	0.285±0.068	0.276±0.009	0.257±0.066	0.214±0.079
Fibre packing density (g/cm³)	40	0.595±0.045	0.539±0.057	0.474±0.017	0.469±0.056
Porosity (%)	10	-	79.4 2±0.63	80.79±4.93	83.84±6.0
Porosity (%)	40	-	59.78±4.29	64.51±1.3	64.51±4.25