Including humans, many multicellular organisms produce similar hard tissues, such as bones, teeth, shells, skeletal units, and spicules. These hard tissues are biocomposites and incorporate both structural macromolecules (lipids, proteins, and polysaccharides) and inorganic minerals. We do not fully understand the control mechanism of biomineralization in primitive or in developed organisms. Th...

Reconstruction and augmentation of the alveolar bone defects pose a challenge for dental surgeons due to its complex structure. The primary objective tissue engineering is regenerate or replace damaged tissues organs including with grafts, cells, biological molecules. 45S5-bioglass (45S5-BG), superior osteoconductive osteoinductive abilities, has been at forefront engineering, regeneration, per...

Conducted biomineralogical studies indicate piezoelectric properties of apatite, which is one of the major components of bone. This publication presents hypothetical correlations between piezoelectric properties of bone apatite and the accompanying electromagnetic phenomena in bones and their environment. It notes the correlations between electrical properties of bones and changes in the electr...

apatite (a); c-cpx, f – iron, m – merrillite, s – silica, p – plagioclase. CL picture is slightly zoomed out. SHOCK-INDUCED TEXTURE IN LUNAR MG-SUITE APATITE AND ITS EFFECT ON VOLATILE DISTRIBUTION. A. Cernok1, J. Darling2, L. White2, J.Dunlop2, and M. Anand1,3. 1Open University, School of Planetary Sciences, Walton Hall, MK7 6AA, United Kingdom ([email protected]), 2University of Portsmout...

Introduction: The volatile component of apatite [Ca5(PO4)3(F,Cl,OH)] makes it a popular choice for studying the abundance and distribution of indigenous lunar volatiles [e.g. 1-5]. The thermodynamic behavior of volatile partitioning into apatite is, however, poorly constrained. Limited experimental studies of apatite/melt partitioning have focused on terrestrial systems [6], chlorine-brine syst...

The hydrothermal syntheses of hydroxyapatite and polymer composite materials were studied. The apatite precursor slurry was prepared by agitating a mixture of CaCO3 and CaHPO4·2H2O, and 3 kinds of polymeric fibers were added. The mixture was treated under hydrothermal conditions at 180 °C for 5 hours. The XRD patterns of the products showed that the products were well-crystallized hydroxyapatit...