Abstract Novel crystalline and thermally stable chitosan-N-acetylisatin (Chs-NAI) polymer derivatives were synthesized by chitosan modification. These polymers formed insertion of β-cyclodextrin (βCD) doping with zinc oxide nanoparticles (ZnO NPs) yielding pseudopolyrotaxane (Chs-NAI/βCD), Chs-NAI/ZnO-NPs, Chs-NAI/βCD/ZnO NP composites. The chemical structure morphology the newly prepared inves...

Calcium phosphate nanoparticles (CaP-NP) are ideal tools for transfection due to their high biocompatibility and easy biodegradability. After transfection these particles dissociate into calcium and phosphate ions, i.e. physiological components found in every cell, and it has been shown that the small increase in intracellular calcium level does not affect cell viability. CaP-NP functionalized ...

Calcium carbonate, especially with nanostructure, has been considered as a good candidate material for bone regeneration due to its excellent biodegradability and osteoconductivity. In this study, rod-like calcium carbonate nanoparticles (Rod-CC NPs) with desired water dispersibility were achieved with the regulation of poly (acrylic acid). Characterization results revealed that the Rod-CC NPs ...

Background: Bioactive glasses 58S, are silicate-based materials containing calcium and phosphate, which dissolved in body fluid and bond to the bone tissue. This type of bioactive glass is highly biocompatible and has a wide range of clinical applications. Methods: The 58S glass powders were synthesized via sol-gel methods, using tetraethyl orthosilicate, triethyl phosphate, and calcium nitrate...

the aim of the present study was to prepare nano-sized calcium fluoride (caf2). calcium fluoride nanoparticles were synthesized by cacl2.6h2o and ammonium fluoride. nanoparticles were synthesized by co-precipitation method. the synthesized nanocrystals were characterized by x-ray diffraction (xrd), fourier transform infrared spectroscopy (ftir), scanning electron microscopy (sem). the crystalli...

Nanobacteria or living nanovesicles are of great interest to the scientific community because of their dual nature: on the one hand, they appear as primal biosystems originating life; on the other hand, they can cause severe diseases. Their survival as well as their pathogenic potential is apparently linked to a self-synthesized protein-based slime, rich in calcium and phosphate (when available...

Calcium phosphate nanoparticles are highly biocompatible and biodegradable in bone regeneration. On the other hand, strontium magnesium enhance formation of bone. The substitution calcium by is an efficient way to improve biological properties phosphate-based biomaterials. Strontium-doped magnesium-doped with degrees cation 5, 10, 15, 20 mol% respect were prepared precipitation, followed surfac...

to evaluate the tolerance and effectiveness of conjugated estrogen for women with established post-menopausal osteoporosis and hot flushes, with the use of paired comparison, randomized, we tested during an 10 month period the bone mineral contents and plasma glucose in subjects who afforded by premarin in dosages of 0.625 mg for days 1 to 25 and oral medroxy progesterone acetate for days 15 to...

This paper presents a simple method for the rapid synthesis of magnetite/hydroxyapatite composite particles. In this method, superparamagnetic magnetite nanoparticles are first synthesized by coprecipitation using ferrous chloride and ferric chloride. Immediately following the synthesis, carbonate-substituted (B-type) hydroxyapatite particles are mechanochemically synthesized by wet milling dic...