Sustainable phosphorus management in soil using bone apatite

2022 ◽  
Vol 305 ◽  
pp. 114344
Author(s):  
Partha Pratim Biswas ◽  
Gordon Turner-Walker ◽  
Jagat Rathod ◽  
Biqing Liang ◽  
Chun-Chieh Wang ◽  
...  
Keyword(s):  
Bone Apatite

The surface and the volume trace element compound of the of biological bone apatite

2014 ◽  
Author(s):  
Eugeniya Gusak ◽  
Kuznetsov Vladimir ◽  
Kochnko Alexandr ◽  
Gordienko Elena ◽  
Danilchenko Sergii ◽  
...  
Keyword(s):  
Trace Element ◽  
Bone Apatite

Design of hydroxyapatite bioceramics with micro-/nano-topographies to regulate the osteogenic activities of bone morphogenetic protein-2 and bone marrow stromal cells

Nanoscale ◽  
2020 ◽  
Vol 12 (13) ◽  
pp. 7284-7300 ◽  
Author(s):  
Xiangfeng Li ◽  
Minjun Liu ◽  
Fuying Chen ◽  
Yuyi Wang ◽  
Menglu Wang ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Regeneration ◽  
Bone Morphogenetic Protein ◽  
Stromal Cells ◽  
Bone Marrow Stromal Cells ◽  
Marrow Stromal Cells ◽  
Bone Morphogenetic Protein 2 ◽  
Natural Bone ◽  
Morphogenetic Protein ◽  
Bone Apatite

Biomimicking the nanostructure of natural bone apatite to enhance the bioactivity of hydroxyapatite (HA) biomaterials is an eternal topic in the bone regeneration field.

scholarly journals A Revised Radiocarbon Chronology of the Aceramic Shell Midden of Ra’s Al-Hamra 6 (Muscat, Sultanate of Oman): Implication For Occupational Sequence, Marine Reservoir Age, and Human Mobility

Radiocarbon ◽  
2016 ◽  
Vol 58 (2) ◽  
pp. 383-395 ◽  
Author(s):  
Antoine Zazzo ◽  
Olivia Munoz ◽  
Emilie Badel ◽  
Irène Béguier ◽  
Francesco Genchi ◽  
...  
Keyword(s):  
Human Mobility ◽  
Human Bone ◽  
Archaeological Sites ◽  
Sultanate Of Oman ◽  
Shell Midden ◽  
Time Period ◽  
Entire Sequence ◽  
Radiocarbon Chronology ◽  
Reservoir Age ◽  
Bone Apatite

AbstractRa’s al-Hamra 6 (RH-6) is one of the earliest stratified archaeological sites along the eastern littoral of the Arabian Peninsula. This shell midden was radiocarbon dated to the 6th–5th millennium cal BC, but the majority of the dates were obtained before the advent of accelerator mass spectrometry (AMS) 14C dating and suffer from large uncertainties. In addition, most of these dates were obtained on marine and mangrove shells and required correction for local variations from the global average marine 14C reservoir age (MRA). This proved difficult because no consensus value exists for this period in the area. Recent excavations at RH-6 offered the opportunity to redate this important site in order to precisely determine its occupation history and later use as a graveyard, and establish the marine reservoir effect for this time period. Thirty-eight samples of charcoal, shells, and human bone apatite were selected for 14C dating. Bayesian modeling of the 14C dates suggests that the formation of the shell midden spanned ~1 millennium, between the mid-6th and the mid-5th millennium cal BC. Positive and consistent ΔR values were calculated throughout the entire sequence, ranging from 99±27 to 207±43 14C yr. At the beginning of the 4th millennium cal BC, RH-6 was used as a graveyard, as suggested by the 14C dating of a shell in strict association with an individual buried at the surface of the site. 14C dating of human bone apatite allowed us to calculate that 89% of this individual’s diet derived from marine resources. This finding confirms previous observations showing the overwhelming presence of marine and mangrove-dwelling species in the faunal and charcoal assemblage, and implies a low mobility, or mobility restricted to the coast for this population during the 4th millennium cal BC.

scholarly journals The role of intracellular calcium phosphate in osteoblast-mediated bone apatite formation

2012 ◽  
Vol 109 (35) ◽  
pp. 14170-14175 ◽  
Author(s):  
S. Boonrungsiman ◽  
E. Gentleman ◽  
R. Carzaniga ◽  
N. D. Evans ◽  
D. W. McComb ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Intracellular Calcium ◽  
Apatite Formation ◽  
Bone Apatite

The Coating of Bovine-Source Hydroxyapatite on Titanium Alloy (Ti-6Al-4V ELI) Using Electrophoretic Deposition for Biomedical Application

2020 ◽  
Vol 1000 ◽  
pp. 97-106
Author(s):  
Dian Juliadmi ◽  
Nuzul Ficky Nuswantoro ◽  
Hidayatul Fajri ◽  
Irma Yulia Indriyani ◽  
Jon Affi ◽  
...  
Keyword(s):  
Particle Size ◽  
Titanium Alloy ◽  
Electrophoretic Deposition ◽  
Bone Growth ◽  
Biomedical Application ◽  
Size Variation ◽  
Bone Implant ◽  
Bioactive Substance ◽  
Good Coating ◽  
Bone Apatite

Research about the utilization of titanium alloy (Ti-6Al-4V ELI) as implant material in the treatment of orthopedic cases had been increasing. Health problems appear due to the drawbacks of using titanium. The lack of titanium using is bio-inertness characteristic, which decreasing its bioactivity and results in low bone growth and effect for implant failure. The titanium can be modified with coating on the surface using a bioactive substance that is natural-source hydroxyapatite. Bovine-source hydroxyapatite (bovineHA) contains apatite component that is similar to human bone apatite. The coating process was carried out using particle size variation (25 μm, 63 μm, and 125 μm) of bovineHA. The electrophoretic deposition (EPD) method was applied to coat hydroxyapatite with 10 volt for 5 minutes onto the titanium surface. The result showed that different size particles have an effect on coating properties. The coating composed by particle-sized 25 μm has better surface coverage (95.89%), indicating more particle mass (particle weight 6.97x103 μg) attached to surface material, thus resulting thick coating. The good coating characteristic using bovine-source hydroxyapatite with small particle size was expected can be used in biomedical applications due to fulfill the prerequisite of the bone implant.

Study of fossil bones by synchrotron radiation micro-spectroscopic techniques and scanning electron microscopy

2013 ◽  
Vol 21 (1) ◽  
pp. 149-160 ◽  
Author(s):  
I. M. Zougrou ◽  
M. Katsikini ◽  
F. Pinakidou ◽  
E. C. Paloura ◽  
L. Papadopoulou ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Cross Sections ◽  
Weight Ratio ◽  
Spectroscopic Techniques ◽  
X Ray ◽  
Osteocyte Lacunae ◽  
Fossil Bones ◽  
Bone Apatite ◽  
Scanning Electron

Earlymost Villafranchian fossil bones of an artiodactyl and a perissodactyl from the Milia excavation site in Grevena, Greece, were studied in order to evaluate diagenetic effects. Optical microscopy revealed the different bone types (fibro-lamellar and Haversian, respectively) of the two fragments and their good preservation state. The spatial distribution of bone apatite and soil-originating elements was studied using micro-X-ray fluorescence (µ-XRF) mapping and scanning electron microscopy. The approximate value of the Ca/P ratio was 2.2, as determined from scanning electron microscopy measurements. Bacterial boring was detected close to the periosteal region and Fe bearing oxides were found to fill bone cavities,e.g.Haversian canals and osteocyte lacunae. In the perissodactyl bone considerable amounts of Mn were detected close to cracks (the Mn/Fe weight ratio takes values up to 3.5). Goethite and pyrite were detected in both samples by means of metallographic microscopy. The local Ca/P ratio determined with µ-XRF varied significantly in metal-poor spots indicating spatial inhomogeneities in the ionic substitutions. XRF line scans that span the bone cross sections revealed that Fe and Mn contaminate the bones from both the periosteum and medullar cavity and aggregate around local maxima. The formation of goethite, irrespective of the local Fe concentration, was verified by the FeK-edge X-ray absorption fine structure (XAFS) spectra. Finally, SrK-edge extended XAFS (EXAFS) revealed that Sr substitutes for Ca in bone apatite without obvious preference to the Ca1or Ca2unit-cell site occupation.

Basic Properties of Carbonate Apatite Cement Consisting of Vaterite and Dicalcium Phosphate Anhydrous

2012 ◽  
Vol 529-530 ◽  
pp. 192-196 ◽  
Author(s):  
Arief Cahyanto ◽  
Michito Maruta ◽  
Kanji Tsuru ◽  
Shigeki Matsuya ◽  
Ishikawa Kunio
Keyword(s):  
Body Temperature ◽  
Xrd Analysis ◽  
Dicalcium Phosphate ◽  
Carbonate Content ◽  
Carbonate Apatite ◽  
Steel Mold ◽  
Apatite Cement ◽  
Ft Ir ◽  
Bone Apatite ◽  
Diametral Tensile Strength

The aim of the present study is to fabricate bone cement that could transform to carbonate apatite (CO3Ap) completely at body temperature. The powder phase of vaterite and dicalcium phosphate anhydrous (DCPA) was mixed with 0.8 mol/L of NaH2PO4, Na2HPO4, and Na3PO4 aqueous solution, respectively, with liquid to powder ratio (L/P ratio) of 0.45, 0.55, and 0.65. The paste was packed into split stainless steel mold, covered with the glass slide and kept at 37°C and 100% relative humidity for up to 96 hours (h). XRD analysis revealed that the cement became pure CO3Ap within 24 h for Na3PO4, 72 h for Na2HPO4, and 96 h for NaH2PO4, respectively. FT-IR results showed that all of the obtained specimens could be assigned to B-type CO3Ap. CHN analysis showed the carbonate content of the specimen were 10.4 ± 0.3% for NaH2PO4, 11.3 ± 0.7% for Na2HPO4, and 11.8 ± 0.4% for Na3PO4, respectively. Diametral tensile strength of the set CO3Ap cement was 1.95 ± 0.42 MPa for NaH2PO4, 2.53 ± 0.53 MPa for Na2HPO4, and 3.45 ± 1.53 MPa for Na3PO4, respectively. The set CO3Ap cement had low crystallinity similar to bone apatite since it was synthesized at body temperature. We concluded, therefore, that CO3Ap cement prepared from the present method has higher possibility to be used as an ideal bone replacement.

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