Adsorption of 177Lu from Water by Using Synthetic Hydroxyapatite

2021 ◽  
Vol 232 (10) ◽  
Author(s):  
Melania Jiménez-Reyes ◽  
Perla Tatiana Almazán-Sánchez ◽  
Jaime Jiménez-Becerril ◽  
Marcos Solache-Ríos
Keyword(s):  
Synthetic Hydroxyapatite

Microstructural comparison of synthetic bioceramics with natural bioceramics

1991 ◽  
Vol 49 ◽  
pp. 38-39
Author(s):  
Shulin Wen ◽  
Jingwei Feng ◽  
A. Krajewski ◽  
A. Ravaglioli
Keyword(s):  
Recent Work ◽  
Human Body ◽  
Human Tissues ◽  
Main Constituent ◽  
Laboratory Furnace ◽  
Chinese Adult ◽  
Human Enamel ◽  
Biological Compatibility ◽  
Synthetic Hydroxyapatite ◽  
Synthetic Work

Hydroxyapatite bioceramics has attracted many material scientists as it is the main constituent of the bone and the teeth in human body. The synthesis of the bioceramics has been performed for years. Nowadays, the synthetic work is not only focused on the hydroapatite but also on the fluorapatite and chlorapatite bioceramics since later materials have also biological compatibility with human tissues; and they may also be very promising for clinic purpose. However, in comparison of the synthetic bioceramics with natural one on microstructure, a great differences were observed according to our previous results. We have investigated these differences further in this work since they are very important to appraise the synthetic bioceramics for their clinic application.The synthetic hydroxyapatite and chlorapatite were prepared according to A. Krajewski and A. Ravaglioli and their recent work. The briquettes from different hydroxyapatite or chlorapatite powders were fired in a laboratory furnace at the temperature of 900-1300°C. The samples of human enamel selected for the comparison with synthetic bioceramics were from Chinese adult teeth.

scholarly journals Comparative Fixation of Calcium and Strontium by Synthetic Hydroxyapatite

1960 ◽  
Vol 235 (7) ◽  
pp. 2152-2156
Author(s):  
R.C. Likins ◽  
H.G. McCann ◽  
A.S. Posner ◽  
D.B. Scott
Keyword(s):  
Synthetic Hydroxyapatite

Removal of Cu from aqueous solutions by synthetic hydroxyapatite: EXAFS investigation

2008 ◽  
Vol 149 (2) ◽  
pp. 209-213 ◽  
Author(s):  
Alessia Corami ◽  
Francesco D’Acapito ◽  
Silvano Mignardi ◽  
Vincenzo Ferrini
Keyword(s):  
Aqueous Solutions ◽  
Synthetic Hydroxyapatite

A Novelty of Synthetic Hydroxyapatite from Cockle Shell and Characterization

2015 ◽  
Vol 1087 ◽  
pp. 429-433 ◽  
Author(s):  
Rusnah Mustaffa ◽  
Mohd Reusmaazran Mohd Yusof ◽  
Yusof Abdullah
Keyword(s):  
Bone Graft ◽  
Bone Repair ◽  
Artificial Bone ◽  
Synthetic Bone ◽  
Potential Source ◽  
Mineral Constituent ◽  
Bone Graft Substitutes ◽  
Synthetic Hydroxyapatite ◽  
Anadara Granosa ◽  
Cockle Shell

In Malaysia recently, it was found that cockle shell (Anadara granosa) is a potential source of biomaterial for bone repair. It is the most abundant sea species cultured in Malaysia. A possible advantage of using cockle shell as a biomaterial is that they may act as an antilog of calcium carbonate. Malaysian Nuclear Agency took this challenge to develop synthetic bone graft from natural cockle shell. To date, the artificial bone graft substitutes developed from hydroxyapatite (Ca10(PO4)6(OH)2) a bio ceramic is similar to the mineral constituent of human bone. The structure and the composition of hydroxyapatite (HA) are similar to the mineral phase of bone and, its bioactivity and biocompatibility makes it a preferred bone graft.

Insulin Adsorption by Hydroxyapatite

2008 ◽  
Vol 396-398 ◽  
pp. 65-68
Author(s):  
Elena Mavropoulos ◽  
Nilce C.C. da Rocha ◽  
Andrea Machado Costa ◽  
Maria Helena M. Rocha-Leão ◽  
Alexandre Mello ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Adsorption Experiment ◽  
Adsorption Ability ◽  
Adsorption And Desorption ◽  
Synthetic Hydroxyapatite ◽  
Pre Treatment

In this study, the insulin adsorption ability by synthetic hydroxyapatite was investigated. Hydroxyapatite before thermal treatment and heated at 900°C and 1100°C were incubated in a solution containing 32 mg insulin/gHA. Adsorption and desorption experiments were carried out at 37°C under constant and slowly stirring. From FTIR results it was observed that insulin was tightly attached to HA surface after 96 hours adsorption experiment. Thermal pre-treatment on HA samples had no effect on insulin adsorption. However, protein desorption was more pronounced on samples not submitted to thermal treatment.

Synthetic hydroxyapatite-solubility product and stoichiometry of dissolution

1978 ◽  
Vol 23 (5) ◽  
pp. 329-336 ◽  
Author(s):  
L.C. Bell ◽  
H. Mika ◽  
B.J. Kruger
Keyword(s):  
Solubility Product ◽  
Synthetic Hydroxyapatite

Phase relationships in the join Ca(OH)2–CaCO3–Ca3(PO4)2–H2O at 1000 bars

1969 ◽  
Vol 37 (285) ◽  
pp. 75-82 ◽  
Author(s):  
G. M. Biggar
Keyword(s):  
Phase Equilibria ◽  
Water Content ◽  
X Ray Diffraction ◽  
X Ray ◽  
Synthetic Hydroxyapatite ◽  
Diffraction Patterns ◽  
Phase Relationships

SummaryPhase equilibria involving calcite, apatite, portlandite, liquid, and vapour were determined at 1000 bars. Calcite, apatite, and portlandite melt at 654 °C to form a liquid of composition (wt %), Ca(OH)2 53 %, CaCO3 46 %, Ca3(PO4)2 1 %. With water present melting occurs at 635 °C to form a similar liquid with a low water content. The X-ray diffraction patterns of the equilibrium apatites were not significantly different from synthetic hydroxyapatite.

Structural and microstructural characterization of bioapatites and synthetic hydroxyapatite using X-ray powder diffraction and Fourier transform infrared techniques

2006 ◽  
Vol 39 (3) ◽  
pp. 385-390 ◽  
Author(s):  
Santu Chakraborty ◽  
Sandip Bag ◽  
Subrata Pal ◽  
Alok K. Mukherjee
Keyword(s):  
Fourier Transform ◽  
Powder Diffraction ◽  
Microstructural Characterization ◽  
Fourier Transform Infrared ◽  
Calcium Hydroxyapatite ◽  
Partial Replacement ◽  
Human Teeth ◽  
X Ray ◽  
Rabbit Bone ◽  
Synthetic Hydroxyapatite

Bioapatite, the main constituent of mineralized tissue in mammalian bones and teeth, is similar in structure and composition to calcium hydroxyapatite (HAP), Ca10(PO4)6(OH)2. The crystallographic analyses of four bioapatites of human-, goat- and rabbit-bone and human-teeth origin, and one synthetic HAP preparedviamicrowave irradiation, have been carried out using X-ray powder diffraction techniques. Fourier transform infrared spectra and Rietveld analyses indicate partial replacement of PO43−ions by CO32−ions in all bioapatites.

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