Results 61 to 70 of about 11,894 (252)
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
doaj +1 more source
First Principles NMR Study of Fluorapatite under Pressure
, 2012 NMR is the technique of election to probe the local properties of materials. Herein we present the results of density functional theory (DFT) \textit{ab initio} calculations of the NMR parameters for fluorapatite (FAp), a calcium orthophosphate mineral ...
Astala +62 more
core +1 more source
High Zn content of Randall's plaque: A μ-X-ray fluorescence investigation [PDF]
, 2011 Kidney stone disease, or nephrolithiasis, is a common ailment. Among the different risk factors usually associated with nephrolithiasis are dehydration, metabolic defects (especially with regard to calcium and oxalate).
Albouy, Pierre-Antoine +7 more
core +2 more sources
Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review
Advanced Healthcare Materials, EarlyView.Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro +8 more
wiley +1 more source
DISTRIBUTION OF HALOGENS AND SULFUR IN APATITES FROM PORPHYRY COPPER DEPOSITS OF THE SOUTH URALS: NEW DATA [PDF]
Минералогия, 2016 New data on distribution of halogens and sulfur in apatites from diorite intrusives of the Voznesenskoe and Elenovskoe porphyry copper deposits, as well as Kutuevskoe ore occurrence, are presented.
V.V. Kholodnov +4 more
doaj
Hydrothermal Preparation of Apatite-Type Phases La9.33Si6O26 and La9M1Si6O26.5 (M = Ca, Sr, Ba)
Journal of Mathematical and Fundamental Sciences, 2013 Apatite-type lanthanum silicates show a great potential to be used as an electrolyte for intermediate- to low-temperature (600-700 ï‚°C) solid oxide fuel cells (ITSOFC).
Atiek Rostika Noviyanti +3 more
doaj +1 more source
Characterization of a calcium phospho-silicated apatite with iron oxide inclusions [PDF]
, 2011 An iron oxide containing calcium phosphate–silicate hydroxyapatite was synthesized by calcination at 900 °C of a sample obtained by precipitation in basic aqueous solution of Ca, P, Si, Fe and Mg containing acidic solution made from dissolution of ...
Borschneck, Daniel +4 more
core +3 more sources
Advanced Healthcare Materials, EarlyView.3D printed hybrid scaffolds combining bioactive silica–calcium chemistry with elastic polymers guide human bone stem cells to form bone. The scaffolds support cell survival, organization, and invasion while releasing osteogenic ions. Together, architecture and composition drive bone‐specific gene expression, extracellular matrix organization, and ...
David R. Sory +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
Formation and evolution of hydrated surface layers of apatites [PDF]
, 2005 Nanocrystalline apatites exhibit a very fragile structured hydrated surface layer which is only observed in aqueous media. This surface layer contains mobile ionic species which can be easily exchanged with ions from the surrounding fluids.
Combes, Christèle +3 more
core +1 more source