Results 51 to 60 of about 1,956 (252)
Reinvestigation of the crystal structure of Ca2Ce8(SiO4)6O2 apatite by Rietveld refinement
Acta Crystallographica Section E: Crystallographic Communications, 2018 Ca2Ln8(SiO4)6O2 apatites with Ln = La, Ce, Pr, Nd, Sm, Eu, Gd and Tb crystallize in space group P63/m. The crystal structure of apatite-type Ca2Ce8(SiO4)6O2 [dicalcium octacerium hexakis(silicate) dioxide], which has been synthesized by calcination, was ...
Nicolas Massoni +2 more
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Литосфера, 2020 Research subject. This article aims to review modern methods for investigating detrital zircons and apatites used as mineral indicators of the composition and age of distributive provinces. Materials and methods.
L. V. Badida, A. V. Maslov, G. A. Mizens
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Scientific Reports, 2021 This paper introduces the use of topological data analysis (TDA) as an unsupervised machine learning tool to uncover classification criteria in complex inorganic crystal chemistries.
Scott Broderick +3 more
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Bioengineering, 2023 Biomimetic nanocrystalline apatites analogous to bone mineral can be prepared using soft chemistry. Due to their high similarity to bone apatite, as opposed to stoichiometric hydroxyapatite for example, they now represent an appealing class of compounds ...
Christophe Drouet +7 more
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Natural Aging of Biomaterials in Ambient and Physiological Environments
Advanced NanoBiomed Research, EarlyView.Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley +1 more source
Apatite Revisited: The Role of Anisotropy in Apatite Analysis [PDF]
Microscopy and Microanalysis, 2010 Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
DT Adams, AE Koenig, HA Lowers
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Advanced Physics Research, EarlyView.This review explores color‐center‐mediated photochromism in inorganic materials and elaborates on defect‐originated photochromic fundamentals. It categorizes typical material systems by three core color‐center sources, including oxygen vacancies, non‐oxygen anion‐related defects, and cation‐related defects and summarizes feasible defect engineering ...
Jingxuan Zhang +3 more
wiley +1 more source
Model Evaluation the Effect of Size, Shape and Surface Condition of Apatite Nanocrystals on the Deviation of Ca / P ratio from stoichiometric [PDF]
Журнал нано- та електронної фізики, 2014 The causes of Са / Р ratio deviation in biological apatites from stoichiometric one were discussed. By the simple model evaluation Са / Р ratio was shown to deviate from stoichiometric one because of small sizes of crystals, and peculiarities in chemical
S.N. Danilchenko
doaj
The Anatomical Record, EarlyView.Polarized microscopic images of the outer bone cortex (a and b) and deeper trabecular bone (c and d) of the deer calcaneus in thin cross‐sections. The brighter gray levels reflect more oblique‐to‐transverse collagen fibers in the compression/dorsal bone (a, c) and the darker gray levels reflect more longitudinal collagen in the tension/plantar bone (b,
John G. Skedros +3 more
wiley +1 more source
Characterization of antiseptic apatite powders prepared at biomimetics temperature and pH
Materials Research, 2008 Antiseptic apatite-based calcium phosphates were prepared as the single-phase powders. Phosphocalcic oxygenated apatites were synthesized from calcium salts and orthophosphate dissolved in oxygenated water solution at 30%, under the biomimetic conditions
Soumia Belouafa +4 more
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