Chủ nhật, 26/07/2026 | 19:57
Abstract In this paper, the effects of hydrothermal and calcination conditions on the structure of nano-hydroxyapatite synthesized from Thunnus tonggol bone were studied. The characteristics of samples were determined by various techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and optical X-ray fluorescence spectroscopy (XRF). XRD results showed that the hydrothermal and calcination conditions affect the crystallinity and purity of nano-hydroxyapatite product. The suitable conditions for the synthesis of nano-hydroxyapatite have been proposed such as hydrothermal at 120°C in 7 hours and calcination at 800°C in 1 hour. Under the conditions, the hydroxyapatite had the nanoparticle size in a range of 30–100 nm, and reached a BET surface area of 15.8 m2/g, a pore volume of 0.018 cm3/g, and a pore diameter of 23.0 Å. The molar ratio of Ca/P in the nano-hydroxyapatite was 1.67, which would be the expected ratio for hydroxyapatite. The nano-hydroxyapatite product has high crystallinity and biological compatibility when tested in Simulated Body Fluid (SBF). Keywords: nano-hydroxyapatite, Thunnus tonggol, biocompatibility, fish bone |
Bộ Công Thương xác định thực hiện Nghị quyết số 57-NQ/TW là nhiệm vụ chính trị quan trọng, thường xuyên và việc triển khai phải đồng bộ, quyết liệt.
24/07/2026