Results 41 to 50 of about 3,135 (181)

Optimization of Fluorapatite/Bioactive Glass Nanocomposite Foams as Bone Tissue Scaffold: An in Vivo Study [PDF]

International Journal of Molecular and Cellular Medicine, 2023
The present study investigated the suitability of nanocomposite foams of fluorapatite and bioactive glass (FA /BG) in different weight ratios as scaffolds for bone tissue in rat tibia regeneration to determine the optimal composition.
Seyedali Seyedmajidi, Maryam Seyedmajidi, Sina Haghanifar   +2 more
doaj  

Distribution and rare earth element abundances of apatite in Bennu samples determined by synchrotron X‐ray fluorescence spectroscopy

Meteoritics &Planetary Science, EarlyView.
Abstract Apatite is often the most rare earth element (REE)‐enriched mineral in chondritic meteorites. REE enrichment and fractionation levels in apatite grains can give insight into the aqueous fluids in which they formed and the conditions prevailing within the host body. In this study, we applied synchrotron X‐ray fluorescence (SXRF) spectroscopy to
B. J. Tkalcec, P. Tack, T. Baert, J. Herthogs, B. Vekemans, B. Bazi, E. De Pauw, M. Di Michiel, G. Falkenberg, J. Garrevoet, G. Libourel, M. Portail, V. Guigoz, C. Collin, H. C. Connolly Jr., D. S. Lauretta, L. Vincze, F. E. Brenker   +17 more
wiley   +1 more source

Rare Earth Element Potential in the Araí Rift Metavolcanic, Central Brazil: Gamma‐Ray Signatures, Mineralogy and Exploration Implications

Terra Nova, EarlyView.
ABSTRACT Although central Brazil hosts significant ion‐adsorption rare earth element (REE) deposits associated with A‐type granites, their coeval volcanic counterparts have been largely overlooked as exploration targets. This study demonstrates that acidic metavolcanic rocks of the Araí Group share strong radiometric, geochemical and mineralogical ...
Yuri Ribeiro, Nilson Francisquini Botelho, Valmir da Silva Souza, Diego Guilherme da Costa Gomes   +3 more
wiley   +1 more source

Fluorapatite: A Review of Synthesis, Properties and Medical Applications vs Hydroxyapatite [PDF]

Iranian Journal of Materials Science and Engineering, 2022
Recently, using calcium phosphates and at the top of them, hydroxyapatite (HA) has been considered in medical and dental applications as an artificial biomaterial due to their chemical and structural similarity to the bodychr('39')s skeletal tissues such
Seyedali Seyedmajidi, Maryam Seyedmajidi
doaj  

Effects of Pretreatment on the Isotopic Composition of Structural Carbonate in Ray‐Finned Fish Teeth

Rapid Communications in Mass Spectrometry, Volume 41, Issue 1, 15 January 2027.
ABSTRACT Rationale The carbon and oxygen stable isotope ratios (δ13C and δ18O) of carbonate contained in fish tooth dentin have the potential to offer insights into environmental and ecological conditions, making them promising targets for analysis in fossil specimens.
Toshikazu Furuya, Kazuki Yokouchi, Taiga Okumura, Kotaro Shirai   +3 more
wiley   +1 more source

Permian sedimentary sequence containing analcimolite and authigenic aegirine from the Boskovice Basin (Bohemian Massif, Czechia)

The Depositional Record, Volume 12, Issue 5, November 2026.
The Permian freshwater lacustrine sedimentary sequence rich in analcime, with unusual authigenic aegirine and NaFe3+ clinopyroxene. Product of ashfall directly linked with fossil accumulation (Konzentrat‐Lagerstätte). Abstract The Early Permian freshwater lacustrine sedimentary sequence in the vicinity of Bačov (Czechia) is world‐famous for its rich ...
Jakub Jirásek, Dalibor Matýsek, Martin Kašing, Daniel Šimíček   +3 more
wiley   +1 more source

Efficacy of Fluoride Toothpaste Fortified With Micro‐ and Nano‐Hydroxyapatite on Remineralization and Surface Roughness of Synthetic Enamel

Clinical and Experimental Dental Research, Volume 12, Issue 5, October 2026.
ABSTRACT Objectives To evaluate the remineralization efficacy and surface effects of 1450 ppm fluoride toothpaste fortified with synthetic hydroxyapatite (Syn‐HAP) of varying particle sizes and concentrations on synthetic enamel. Material and Methods Nano‐sized Syn‐HAP (nanoSyn‐HAP) was synthesized via a mechanochemical process and characterized using ...
Porawit Kamnoedboon, Phakvalunch Rujiraprasert, Thawanrat Singthong, Thanaphum Osathanon, Chalermkwan Makornpan, Chawalid Pianmee, Naruporn Monmaturapoj, Dusit Nantanapiboon   +7 more
wiley   +1 more source

Study of the possibility of obtaining composites based on nanoscale hydroxyapatite reinforced with titanium oxide and calcium fluoride

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
The article discusses the possibility of obtaining a hardened composite material with a porous structure based on nanostructured hydroxyapatite (HAP) synthesized by precipitation from a solution.
E.A. Bogdanova, V.M. Skachkov, K.V. Nefedova   +2 more
doaj   +1 more source

Fractal Analysis of Jaw Bone Structure in Individuals With Dental Fluorosis: A Retrospective Cross‐Sectional Study

Clinical and Experimental Dental Research, Volume 12, Issue 5, October 2026.
ABSTRACT Objectives This retrospective cross‐sectional study aimed to evaluate differences in maxillary and mandibular trabecular bone structure in individuals with dental fluorosis using fractal dimension (FD) analysis. Materials and Methods The study included 47 individuals: 24 with dental fluorosis and 23 controls.
Ozlem Gormez, Hasan Huseyin Yilmaz, Abdulkadir Cakir   +2 more
wiley   +1 more source

Apatite as a Proxy for Reconstructing Magma Mixing Histories in Granitoids

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Apatite is a common accessory mineral in granites and mafic microgranular enclaves (MMEs), and its textural and compositional characteristics can record dynamic magmatic evolution processes. Apatites from the Early Cretaceous Sanguliu granite and its MMEs in the Liaodong Peninsula exhibit pronounced compositional heterogeneities. In this study,
Xiaowen Lin, Jiahao Zheng, Wanyi Feng
wiley   +1 more source