Inorganic calcium phosphate

No similar reciprocity can exist below the bone-mineralizing product where the tissue fluid must be undersaturated with respect to bone salt and inorganic calcium phosphate. Within the normal range of products, reciprocity with respect to bone as the solid phase is probably masked, as already explained, by varying bone solubility. However, if parathyroid activity regulates bone solubility, then states of fixed parathyroid activity,... 

K-casein), linked together by inorganic calcium phosphate (3). They have molecular weights in the region 10 - >10, and diameters of 20-600 nm (4), compared with the monomeric caseins which have... 

Reported studies on native casein micelles have indicated that P NMR spectroscopy was useful to determine the nature of phosphate molecules as phosphoserins and inorganic calcium phosphate" . Quantitative assessment of the various micellar components was also probed by Rasmussen et al (1997). Nevertheless, in the case of cheeses which are highly-hydrated and heterogeneous samples, investigations by high-field NMR appear as a true challenge. The NMR technique implies some evident technical limitations as for instance, the sample preparation (introduction in NMR tubes or rotor), but NMR is also dependant on the intrinsic sample properties such as heterogeneity and multi-phase liquid/solid nature which induce some susceptibility effects and the presence of anisotropic interactions. The feasibility of the P NMR spectroscopy to study cheeses has been first probed on the milk powder, main component of these dairy products. 

Natural bone is made of 60% of inorganic calcium phosphate minerals. " To this end, many researchers have developed synthetic bone substitutes based upon ceramics to better mimic the natural composition of bone. Ceramics have been widely used for orthopedic and dental applications, and have been used... 

Phosphorus, like nitrogen, is an essential constituent of living matter where it may be partly in combination (as phosphate groups) with organic groups, for example in lecithin and egg yolk, or mainly in inorganic form, as calcium phosphate(V), in bones and teeth. 

Kamitakahara, M., Tanihara, M. and Miyazaki, T. (2006) Hydroxyapatiteforming ability and mechanical properties of organic-inorganic hybrids reinforced by calcium phosphates. Journal of the Ceramic Society of Japan, 114, 692—696. 

Fig. 12.13 SEM micrographs and EDX spectra of the SGA-Ca surface before and after soaking in SBF. The EDX spectra clearly show the evolution of the inorganic chemical composition on the surface from silicon and calcium oxide to a calcium phosphate.

Inorganic nanoparticles have also attracted interest in the field of drug delivery [73]. These inorganic nanoparticles include calcium phosphate, gold, silicon oxide, and iron oxide. They can be prepared easily with controllable size and can be readily... 

Inorganic salts that contain halogens are usually soluble. They commonly occur as simple, single, negatively charged anions in soil. There are two common exceptions to this generalization. First, fluorine is commonly found bonded to phosphate in insoluble minerals called apatites, which are calcium phosphate fluorides. 

The inclusion of solvent molecules as part of the crystal lattice is another common phenomena in both organic and inorganic systems. Calcium phosphate used in modem building plaster, sets when it reacts with water and crystallizes as a stable deca-hydrate. In pharmaceutical systems it is common... 

Phosphorus is one of the inorganic macronutrients in all known forms of life. Inorganic phosphorus in the form of phosphate (PO/ ) plays a major role in vital biological molecules, such as DNA and RNA. Living cells also utilize phosphate to transport cellular energy via adenosine triphosphate (ATP). Phospholipids are the main structural components of all cellular membranes. Calcium phosphate salts are... 

---