Sodium alginate	SA
Bacterial cellulose nanocrystals	BCNs
Chitosan	CS
Gelatin	GT
Hydroxyapatite	HAP
d-glucono-δ-lactone	GDL
Layer-by-layer	LBL
Alginate/bacterial cellulose nanocrystals-chitosan-gelatin	Alg/BCNs-CS-GT
Alginate-chitosan-gelatin	Alg-CS-GT
Extracellular matrix	ECM
Arg–Gly–Asp	RGD
Cell Counting Kit-8	CCK-8
Alkaline phosphatase	ALP
Bacterial cellulose	BC
Scanning electron microscope	SEM
Energy-dispersive X-ray	EDX
Transmission electron microscopy	TEM
Phosphate buffer saline	PBS
Simulated body fluid	SBF