Preparation and characterization of hydroxyapatite nanoparticles doped with nickel, tin, and molybdate ions for their antimicrobial effects.

Background: Hydroxyapatite (HAp) nanoparticles doped with some ions have shown anticancer and antibacterial properties and are of great interest for the development of new biomedical applications. Therefore, the present study aimed to investigate the preparation and characterization of HAp nanoparticles doped with (Ni), tin (Sn), molybdate (Mo) ions for prevention of infections specially in bone tissue engineering.

Methods: HAp and HAp nanocrystal powders doped with nickel (Ni), tin (Sn), molybdate ions (Mo) with concentrations of 500, 1000, and 2000 ppm were prepared by the sol-gel method using a combination of calcium nitrate and phosphorous pentoxide as chemical reagents.

Plasma Cytokines Profile in Subjects with Alzheimer's Disease: Interleukin 1 Alpha as a Candidate for Target Therapy.

Background: Testicular function depends on temperature, and it has been shown that scrotal hyperthermia causes a sharp decrease in sperm parameters due to oxidative stress. In recent years, the use of natural materials from the plant and nanoparticles has attracted much attention. Therefore, the present study aimed to investigate the effect of curcumin and Fe2O3 nanoparticles on sperm parameters in rats.