A simple and efficient method for the chemoselective 1,1-diacetate protection of aromatic aldehydes with acetic anhydride by using Ni2+ supported on hydroxyapatite-core-shell magnetic γ-Fe2O3 nanoparticles (γ-Fe2O3@HAp-Ni2+) under solvent free conditions. This method has several advantages, including high yield, short reaction time, simple work-up and recyclable property of the catalyst. The ca...

Aseptic loosening and bacterial infections are the two main causes of failure for metallic implants used joint replacement. A coating that is both bioactive possesses antimicrobial properties may address such shortcomings improve performance implant. We have sought to study combining hydroxyapatite-based nanoparticles or coatings with baicalein, a plant-extracted molecule antibacterial antioxid...

It is known that iron found as a trace element in bone tissue, the main inorganic constituent of which hydroxyapatite. Therefore, iron-doped hydroxyapatite (HApFe) materials could be new alternatives for many biomedical applications. A facile dip coating process was used to elaborate nanocomposite coatings. The HApFe suspension prepare coatings achieved using co-precipitation method, adapted la...

Ag-doped nanocrystalline hydroxyapatite nanoparticles (Ag:HAp-NPs) (Ca10-xAgx(PO4)6(OH)2, xAg = 0.05, 0.2, and 0.3) with antibacterial properties are of great interest in the development of new products. Coprecipitation method is a promising route for obtaining nanocrystalline Ag:HAp with antibacterial properties. X-ray diffraction identified HAp as an unique crystalline phase in each sample. T...