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- W3080825056 abstract "Scaffolds are the important part of the tissue-engineering field that are made from different biomaterials using various techniques. In this study, new scaffold based on polycaprolactone (PCL) and poly (hydroxybutyrate-co-hydroxyvalerate) (PHBV) containing hydroxyapatite nanopraticles (n-HA) were fabricated using the dual-leaching technique (DLT). Morphology, porosity, degradation rate, Fourier transfer infrared ray (FTIR) spectra, surface, and mechanical properties as well as capacity of cell binding and cell proliferation on the constructed scaffolds were evaluated. FTIR analysis showed that n-HA particles have some interest interactions with polymeric chains. The best 3D-structure was seen in PCL70PHBV30 scaffold using the scanning electron microscopy (SEM) and its structure improved in the presence of 3, 5 wt% of n-HA. Results of energy dispersive x-ray analysis (EDXA, map of Ca) showed that the nanoparticles have the uniform distribution within the fabricated scaffolds. Porosity analysis showed that the particulate salt leaching technique is a successful approach to building a 3D structure. Increasing of PHBV content and n-HA up to 3 and 5 wt% in the PCL matrix led to increase porosity in all samples. Mechanical properties analysis showed that values of compression modulus and strength are decreased with addition of PHBV and HA nanoparticles. These results were directly in line with the results of morphology and porosity. Cell culture experiments demonstrated that the PCL/PHBV/nHA nanocomposite scaffold has a better tendency of proliferation to cells than that of the pure PCL/PHBV scaffold. All of these results suggest promising potentials of the developed PCL/PHBV/nHA scaffolds in this study desire for bone tissue engineering." @default.
- W3080825056 created "2020-09-01" @default.
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- W3080825056 date "2020-09-08" @default.
- W3080825056 modified "2023-10-05" @default.
- W3080825056 title "Design and fabrication of bone tissue scaffolds based on <scp>PCL</scp>/<scp>PHBV containing</scp> hydroxyapatite nanoparticles: <scp>dual‐leaching</scp> technique" @default.
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- W3080825056 doi "https://doi.org/10.1002/jbm.a.37087" @default.
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