Related Experiment Video
Updated: Jul 13, 2025
Synthesis of Graphene-Hydroxyapatite Nanocomposites for Potential Use in Bone Tissue Engineering
Published on: July 27, 2022
Sodium alginate/Hydroxyapatite/nanocellulose composites: Synthesis and Potentials for bone tissue engineering.
S Iswarya1, T Theivasanthi1, Subash C B Gopinath2
1International Research Centre, Kalasalingam Academy of Research and Education (Deemed University), Krishnankoil 626126, Tamil Nadu, India; Department of Physics, Kalasalingam Academy of Research and Education (Deemed University), Krishnankoil 626126, Tamil Nadu, India.
Sodium alginate/hydroxyapatite/nano cellulose nanocomposite films show promise for bone tissue engineering. These biocompatible materials exhibit enhanced tensile strength and favorable biodegradation properties, making them suitable for regenerative medicine applications.
Area of Science:
- Biomaterials Science
- Nanotechnology
- Tissue Engineering
Background:
- Hydroxyapatite (HA) is a key bioceramic for biocompatibility in bone regeneration.
- Sodium alginate (SA) based nanocomposites are explored for biomedical applications.
- Nano cellulose (NC) can enhance mechanical properties of biopolymer films.
Purpose of the Study:
- To prepare and characterize sodium alginate/hydroxyapatite/nano cellulose (SA/HA/NC) nanocomposite films.
- To evaluate the effect of HA and NC incorporation on the mechanical and biological properties of SA films.
- To assess the potential of these nanocomposite films for bone tissue engineering.
Main Methods:
- Solution casting technique for nanocomposite film preparation.
- Characterization using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray Analysis (EDAX), and Fourier-Transform Infrared Spectroscopy (FTIR).
- Mechanical testing (tensile strength), swelling, biodegradation, and biomineralization assays.
Main Results:
- XRD confirmed the presence of HA and NC fillers within the SA matrix.
- FTIR analysis revealed distinct functional groups in the nanocomposite films.
- SEM visualized the morphology of fillers and the nanocomposite films.
- Significant improvements in tensile strength were observed with NC incorporation, with a 331% increase at 5 wt% NC.
- Swelling, biodegradation, and biomineralization tests indicated suitability for bone tissue engineering.
Conclusions:
- SA/HA/NC nanocomposite films demonstrate excellent biocompatibility and mechanical strength.
- The incorporation of HA and NC significantly enhances the properties of SA films for bone regeneration.
- These nanocomposite films represent a promising biomaterial for advanced bone tissue engineering applications.
