Table 2.

Percentage porosity of HFIP-derived scaffolds.

Silk particles	Porogen size
%	μm
Density method
	210–300	500–600	850–1000
0	94.3 ± 0.7	93.5 ± 0.6	91.3 ± 0.8
50a)	90.1 ± 0.6	–	–
100	81.9 ± 0.9	84.4 ± 1.4	81.5 ± 0.9
200	78.2 ± 0.4	79.2 ± 2.4	77.8 ± 0.1
Liquid displacement method
	210–300	500–600	850–1000
0	93.5 ± 1.1	92.3 ± 1.2	90.9 ± 0.8
50a)	89.6 ± 1.3	–	–
100	80.1 ± 1.0	83.3 ± 1.2	78.8 ± 1.4
200	66.7 ± 2.1	77.2 ± 2.3	78.6 ± 1.3

Porosity values are average ± standard deviation; N = 4.

^a)No scaffolds were made with 50% reinforcement other than 210–300 μm pore size.