Introduction: Hydroxyapatite nanoparticles inhibit the growth of various cancer cells. The inhibitory effect of these nanoparticles on breast cancer cells of mcf7 has also been reported. However, no studies have been done on the effect of the hydroxyapatite nanoparticles on the radiation sensitivities of the MCF7 cell Line. Our goal in this study is to investigate the effect of...

The present paper investigates to examine the in vitro antibacterial activities of the chromium nanopartical which preparied by -green synthesis techniquesreduction of potassium dichromate solution with Arachis hypogaea leaf extract containing reducing sugars which act as reducing agent. Chromium nanoparticles were shown to be an effective control of two phytopathogenic bacteria, namely Erwinia...

Static bone scan was performed in 46 patients for evaluation of ocular Hydroxyapatite Vascularization. Study Findings indicated that bone scan, with TC-99m MDP is an appropriate method for evaluation of Hydroxyapatite Vascularization and for estimating the time For peg insertion into the Hydroxyapatite implant. Our study showed proper Hydroxyapatite Vascularization when the ratio of activ...

The aim of the present study was to examine the adsorption of bovine serum albumin (BSA) to hydroxyapatite surfaces by means of zeta potential. The electrophoretic mobility of both hydroxyapatite and BSA were negative, with BSA itself less negative than hydroxyapatite. The zeta potential of the surface of BSA-adsorbed hydroxyapatite was significantly more negative than that of hydroxyapatite al...

the aim of this study was to investigate the sol gel synthesis of ha/fa nanoparticles and the possible formation of tcp phase or unstoichiometric calcium deficient hydroxyapatite (cdha) from the precursors with a ca/p ratio of 1.62. in order to prepare the sol, the solutions of triethyl phosphite, ammonium fluoride and calcium nitrate in ethanol were used respectively as p, f and ca precursors....

Titanium has an osseointegrative property, while hydroxyapatite has an osteoconductive property. It remains a matter of controversy among researchers whether hydroxyapatite has higher osteoblast compatibility than titanium. Here, we compared the activities between osteoblasts cultured on titanium and those cultured on hydroxyapatite. An osteoblast-like cell line, MC3T3-E1, was cultured on machi...

objective(s):  although several chemical and physical methods for gene delivery have been introduced, their cytotoxicity, non-specific immune responses and the lack of biodegradability remain the main issues. in this study, hydroxyapatite nanoparticles (nps) and 1,2-dioleoyl-sn-glycero-3-phosphoethanol​amine (dope)-modified hydroxyapatite nps was coated with antisense oligonucleotide of e6 mrna...

This paper described the development of chitosan composites containing precipitated hydroxyapatite particles for potential applications in orthopaedic surgery or waste water treatment. The synthetic process and morphology of hydroxyapatite were reported. The effects of hydroxyapatite content on the microstructure and mechanical properties of composites were investigated. It was found that the Y...