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In the current study, a porous 3D scaffold using Gallium-Apatite/chitin/pectin (Ga-HA/C/P) nanocomposites scaffolds (NCS) were fabricated by freeze-drying process with applications in orthopedics (bone tissue engineering). Various NCSs (0%, 30%, 50 and 70%) were prepared and characterized for its chemical structure, crystalline phase, surface texture by using various techniques such as FT-IR, XRD and SEM-EDX, respectively. The analyses of physicochemical properties proved that the formulated scaffolds were highly porous, and mechanically stable with superior density. The nanocomposite scaffolds also presented with increased swelling ability, lower biodegradation rate and higher mechanical strength. Further, biocompatibility and cytotoxicity of Ga-HA/C/P nanocomposite scaffolds were studied using NIH3T3 cells and MG-63 cells revealed no toxicity and cells attached and proliferated on scaffolds. Further implantation of prepared NCS showed mature bone formation through formation of new bone cells and osteoblast differentiation. Also, Ga-HA/C/P nanocomposites scaffolds proved to be more effective than chitin-pectin composite scaffolds. Taking results together it can be inferred that the prepared nanocomposite scaffolds possesses the prerequisites and showed great potential for treating orthopedic applications.
Cui et al. (2020) studied this question.
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