Hydroxyapatite (HA) nanoparticles possess a wide range of medical applications because of their biocompatibility and compositional similarity to bone calcium phosphate...

2022年9月24日 · In this context, we have recently introduced UV-irradiation approach for the synthesis of Hap from eggshells where no high-temperature calcination was used (Sultana et al. 2021), and here we have addressed the effect of UV-irradiation on the crystallite size of Hap by applying different model equations.

2023年9月1日 · In this study, OV-HAp with abundant oxygen vacancies (OVs) were prepared by calcining carbonate-doped HAp (CHAp), and the effects of calcination temperature, time and atmosphere on the formation of OVs in OV-HAp and the influence of OVs concentration on its photoelectrochemical properties were investigated in detail.

2003年10月1日 · Surface changes of stoichiometric hydroxyapatite (HAp) by UV irradiation and radical formation were studied to make clear the factors of the photo-induced catalytic behavior.

2020年9月15日 · Here, we report the development of a composite of CS and UV-absorbing HAp, made as a film, using commercial CS, and HAp of marine origin (derived from waste fish bones). HAp was prepared by calcining bones pretreated in an iron-containing solution, forming a powder consisting of HAp, α-Fe 2 O 3 and a mixed iron‑calcium-phosphate [ 17 ].

2022年7月22日 · The UV–vis spectrum had shown a maximum absorbance peak at 256 nm (HAp) and 286 nm (HAp-Wts), while FT-IR results revealed the presence of functional groups such as alcoholic groups, phosphate, and carbonate groups denoting the successful synthesis of Wrightia tinctoria mediated HAp-Wt nanoparticles.

2021年1月21日 · Hydroxyapatite Ca 10 (PO 4) 6 (OH) 2 (HAp) is an important bioactive material for bone tissue reconstruction, due to its highly thermodynamic stability at a physiological pH without bio-resorption.

In the present study, a ternary magnetic nanocomposite (SiO2/MnFe2O4/ZIF-8) was synthesized via the embedding of the SiO2/MnFe2O4 nanocomposite within the metal–organic framework (ZIF-8). The...

Ti-substituted hydroxyapatite (TiHAP) is a new photocatalyst with high adsorption capacity and photocatalytic activity. The morphology and structure of TiHAP were characterized using...

2022年7月27日 · Hydroxyapatite (HAp) nanomaterials have been synthesized via wet-chemical precipitation route with Ca/P molar ratios of 1.40, 1.60, 1.67, 1.80 and 2.00.