Effects of Composite Formulation on Mechanical Properties of Biodegradable Poly(Propylene Fumarate)/Bone Fiber Scaffolds

Table 1

(a) High and Low Levels for Six Parameters Tested in a Resolution III, Two-level Fractional Factorial Design

Level	PPF Mn	NVP/PPF	BF/polymer	BF Type	BP/PPF	NaCl
+	4000	0.7 ml/g	2/8	DBF	0.5%	30%
−	2000	0.5 ml/g	0	MBF	0.1%	0

(b) Combinations of the Experimental Variables in the Resolution III, Two-level Fractional Factorial Design

Formula	PPF Mn	NVP/PPF	BF/polymer	BF Type	BP/PPF	NaCl
1	+	+	+	+	+	+
2	+	+	−	none	−	−
3	+	−	+	−	+	−
4	+	−	−	none	−	+
5	−	+	+	−	−	+
6	−	+	−	none	+	−
7	−	−	+	+	−	−
8	−	−	−	none	+	+