Samples prepared using different concentrations of reaction reagents and the mass fraction ratio of β-TCP/HA calculated from X-ray diffraction spectrum.

Scaffold products	Ca (M)	Cu (M)	Zn (M)	Ratio (β-TCP/HA)
P0	0.85	—	—	59/41
P1	0.84	0.005	0.005	64/36
P2	0.81	0.02	0.02	70/30
P3	0.75	0.05	0.05	—