Table 2.

Preparation of PPF-HA printing solutions for bilayer and gradient scaffolds^*

mPPF (g)	VDEF (mL)	HA		BAPO
		(g)	(wt%)	(mg)	(wt%)
10	1.677	0	0	118.8	1
10	1.677	0.1489	1.25	240.1	2
10	1.677	0.3017	2.5	240.1	2
10	1.677	0.6192	5	240.1	2
10	1.677	1.3072	10	240.1	2

^*Considering PPF density (M_n 2530) ρ_PPF = 1.27 g/cm³ [35], and DEF density (Mn 172) ρ_DEF = 1.05 g/cm³ (Sigma Aldrich) at 25°C. m_PPF= PPF mass, V_DEF= DEF volume, wt% reported as $\frac{\mathbf{x}}{\mathbf{x}+{\mathbf{m}}_{\mathbf{\text{PPF}}}+{\mathbf{V}}_{\mathbf{\text{DEF}}}\ast {\mathbf{\rho }}_{\mathbf{\text{DEF}}}}\ast \mathbf{100}\%$