Acta Crystallographica Section B Structural Science, 2007 Apatites commonly adopt P63/m hexagonal symmetry. More rarely, monoclinic chemical analogues have been recognized, including the biologically significant hydroxyapatite, Ca10(PO4)6(OH)2, but the driving force towards lower symmetry has not been systematically examined.
Baikie, T +7 more
openaire +5 more sources
Marcasite at the Permian‐Triassic Transition
Geophysical Monograph Series, Page 377-399., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Elena Lounejeva +7 more
wiley +6 more sources
Ultrasonic Implantation of Bioactive Glass Particles into Poly(methyl methacrylate) Substrates [PDF]
, 1995 Poly(methyl methacrylate) substrates were immersed in suspensions containing bioactive 50CaO･50SiO(2) (mol%) glass particles (45 μm in diameter) and a 6:4 (volume fraction) mixture of ethanol and THF, and an ultrasonic energy was applied to the system. A
Nishiyama, Chikako +3 more
core +1 more source
U–Pb Dating, Gemology, and Chemical Composition of Apatite from Dara-e-Pech, Afghanistan
Crystals, 2023 Minerals of the apatite group commonly occur in granite pegmatites, and their ability to incorporate a wide range of trace elements makes them a good indicator of magma composition and magmatic–hydrothermal processes.
Biying Lai, Bo Xu, Yi Zhao
doaj +1 more source
Constraining the long-term evolution of the slip rate for a major extensional fault system in the central Aegean, Greece, using thermochronology [PDF]
, 2006 The brittle/ductile transition is a major rheologic boundary in the crust yet little is known about how or if rates of tectonic processes are influenced by this boundary.
Altherr +57 more
core +1 more source
Gemological and Mineralogical Studies of Greenish Blue Apatite in Madagascar
Crystals, 2022 Madagascar is known as the ‘Island of Gemstones’ because it is full of gemstone resources. Apatite from Madagascar is widely popular because of its greenish blue Paraiba-like color. This study analyzes apatite from Madagascar through standard gemological
Zhi-Yi Zhang +3 more
doaj +1 more source
α-tricalcium phosphate/fluorapatite-based cement - promising dental root canal filling material [PDF]
Processing and Application of Ceramics, 2022 α-Tricalcium phosphate/fluorapatite (α-TCP/FAp) mixed powders were prepared in order to obtain dental root canal filling cements. Different liquids for cement pastes have been investigated and the most suitable one for obtaining rheologically optimal ...
Kazuz Abdul +8 more
doaj +1 more source
Adsorption and release of BMP-2 on nanocrystalline apatite-coated and uncoated hydroxyapatite/b-tricalcium phosphate porous ceramics [PDF]
, 2009 The association of bone morphogenetic proteins (BMPs) with calcium phosphate bioceramics is known to confer them osteoinductive properties. The aim of this study was to evaluate the surface properties, especially regarding recombinant human BMP-2 (rhBMP-
Alam +38 more
core +3 more sources
Detrital zircon and apatite (U‐Th)/He geochronology of intercalated baked sediments: a new approach to dating young basalt flows [PDF]
, 2011 Simple numerical models suggest that many basaltic lava flows should sufficiently heat the sediments beneath them to reset (U‐Th)/He systematics in detrital zircon and apatite.
Aciego +32 more
core +2 more sources
Advances in Materials Science and Engineering, 2017 The bone-bonding ability of a material is evaluated by examining apatite formation on its surface in simulated body fluid (SBF). Partially stabilized zirconia (ZrO2) is currently attractive as an alternative to titanium (Ti) implants; however, no ...
Eiji Yoshida, Tohru Hayakawa
doaj +1 more source