Powders of ?-tricalcium phosphate (?-TCP, Ca3PO4) doped with manganese (Mn2+) are comprehensively analyzed electron paramagnetic resonance (EPR) and electron-nuclear double (ENDOR) techniques. The modeling the spectra permitted to calculate values zero-field splitting (B20 = ?904 MHz; B40 ?1.41 MHz B43 195.2 MHz) explain origin low-field hyperfine structures as allowed spin transitions fine str...

Phosphogypsum (PG) is a by-product of the phosphorus (P) chemical industry, and usually contains ~2% residual phosphate. The P in PG would cause pollution environment by way long-term stacking. Phosphate-solubilizing fungi (PSF) can effectively promote release from insoluble aim this study was to investigate capacity between tricalcium phosphate (TCP) Aspergillus niger (ANG) via flask experimen...

In the present study, amorphous tricalcium phosphate (TCP) has been synthetized by a wet route to obtain low temperature ?-TCP at 650 °C (LT-?TCP) and compare its structural, physical–chemical thermal properties with those of obtained conventional solid-state reaction method 1400 (HT-?TCP). Even if no significant differences were observed concerning values lattice parameters measured Rietveld r...

Aligned porous non-sintered and sintered a-tricalcium phosphate (a-TCP) scaffolds are prepared by ice-templating converted into the low-temperature calcium phosphates calcium-deficient hydroxyapatite (CDHA), brushite monetite. This is achieved hydrothermal treatment or incubation in phosphoric acid solution has a high clinical potential due to higher solubility of these phases. Further details ...

Surface functionalization of hydroxyapatite (HA) and beta-tricalcium phosphate (TCP) bioceramics with chemical ligands containing a pyrrogallol moiety was developed to improve the adhesion of bone cell precursors to the biomaterials. Fast and biocompatible copper-free click reaction with azido-modified human fetal osteoblasts resulted in improved cell binding to both HA and TCP bioceramics, ope...

Metallic biomaterials are widely used for implants and dental orthopedic applications due to their good mechanical properties. Among all these materials, 316L stainless steel has gained special attention, because of its characteristics as an implantable biomaterial. However, the Young’s modulus this metal is much higher than that human bone (~193 GPa compared 5–30 GPa). Thus, a stress shielding...

Hydroxyapatite (HAp) and β-tricalcium phosphate (β-TCP) are widely used bioceramics for surgical or dental applications. This paper is dealing with dissolution kinetics of synthetically prepared β-TCP and four types of HAp granules. Two groups of HAp, treated at different temperatures, each of them with two different granule sizes, were tested. Three corrosive solutions with different pH and si...

in this study, based on a biomimetic approach, novel 3d biodegradable porous hybrid scaffolds consisting of chitosan, gelatin, and tricalcium phosphate were developed for bone and cartilage tissue engineering. macroporous chitosan/ gelatin/β-tcp scaffolds were prepared through the process of freeze-gelation/solid-liquid phase separation. the results showed that the prepared scaffolds are highly...

tricalcium phosphate as hydroxyapatite is used as a suspension stabilizer in styrene polymerization process. particle size of tcp plays an essential role in the particles’ size distribution and geometrical form of polystyrene products. as the particle size of tcp is reduced, there will be much better chance to engulf the styrene particles. the higher the number of tcp particles surrounding each...

This study aimed at preparing and studying the properties of nanoparticles of calcium phosphate (nCaP) with Ca/P ratios ranging from 1.0 to 1.67 using a spray-drying technique. Micro-structural analyses suggested that the nCaPs with Ca/P ratios of 1.67 to 1.33 were nano-sized amorphous calcium phosphate (ACP) containing varying amounts of acid phosphate and carbonate. The nCaP with Ca/P ratio o...