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Showing 1 to 14 of 14 for “"brushite"”.
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The Rational Design of Coiled-Coil Peptides towards Understanding Protein-Crystal Interactions and Amorphous-to-Crystalline Transitions
… dihydrate (CaHPO4 x 2H2O), commonly known as brushite. Coiled-coils were designed to alter the complete growth pathway of brushite beginning with an amorphous precursor and resulting in a modified crystalline state. Both the designed chemical character and the secondary structure of the …
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Chemical Controls on the Formation of Amorphous and Crystalline Calcium Phosphates
… of amorphous calcium phosphate (ACP) and brushite into hydroxylapatite, an important biomineral, has been documented. The relationships between synthesis conditions and the formation and transformation of these phases are not comprehensively understood. The metastable nature of ACP has …
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Optimising calcium phosphate cement formulations to widen clinical applications
… the liquid phase in the setting reaction of a brushite cement to produce monetite (dehydrated brushite) based cement, with increased solubility to overcome the problems faced by long term stability of hydroxyapatite (HA) cements; (2) manipulating the cement formulation to produce a cement that …
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Investigation of the potential beneficial effects of supplemental polyunsaturated fatty acids and glycosaminoglycans on the risk factors for calcium oxalate kidney stone formation using theoretical, experimental and human models
… and supersaturation (SS) of calcium oxalate, brushite and uric acid); crystallization experiments (metastable limit and crystal growth kinetics) were also conducted. For the CS studies, thermodynamic binding constants for calcium-CS and magnesium-CS complexes were determined by isothermal …
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Physical, chemical and biological controls on the origin, crystallization and dissolution of human kidney stones
… oxalate and other mineralogies include struvite, brushite, and apatite. Currently, stones are thought to be relatively insoluble mineral deposits that undergo few physical, chemical and biological post-depositional changes (diagenesis) such as dissolution and recrystallization. Furthermore, with …
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The formulation of a bioresponsive ceramic bone replacement
… ceramics were successfully produced by sintering brushite cement at temperatures ≥ 400°C, the dissolution of which could accelerated in the presence of ALP but was heavily dependent on material specific surface area. The process of sintering limits the possibility of producing biomaterials of …
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Rarity of kidney stones in South Africa's black population : studies of urinary macromolecules, crystal matrix extract containing osteopontin, and bone turnover markers in urine and serum from black and white subjects as a key to understanding this paradox
… oxalate (CaOx), calcium phosphate (CaP, or brushite) and uric acid (U A) using the computer programme EQUIL and for the calculation of the Tiselius Risk Index (TRI). CaOx crystallization experiments were performed. These included CaOx metastable limit (MSL) and BONN Risk Index (BRI) …
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Poultry Litter Ash as an Alternative Fertilizer Source for Corn
… phosphate anhydrous; CaHPO4; log K ̊ 0.30) and brushite (dicalcium phosphate dihydrate; CaHPO4.2H20; 0.63 log K ̊ ) species that were supported by BSED and elemental stoichiometric ratios (Ca:P; 1.12 to 1.71:1). Additionally, GPLA acidified from FB Fly had higher brushite and monetite …
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Comparative Analysis of Kidney Stone Composition in Patients from Ghana and South Africa: Case Study of Kidney Stones from Accra and Cape Town
… components of the stones analyzed from the GSH. Brushite (3.0%), cystine (3.8%) and struvite (19.6%) stones were only found in the stones of participants receiving treatment at the GSH. All kidney stones from the KBTH were mixed; made up of at least two chemical components. Pure kidney stones …
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Investigation of the effect of a solution of lime powder on urinary calcium oxalate kidney stone risk factors in artificial and real urines : in vitro and in vivo studies
… (COM), calcium oxalate dihydrate (COD), brushite and uric acid using the computer programme EQUIL and Tiselius Risk Index (TRI) was also determined. The above-mentioned CaOx crystallization experiments were also performed. Urine compositions, crystallization data and physicochemical risk …
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REACTIVE TRANSPORT OF IRON AND HYDROCHAR COLLOIDS IN A HYDROCARBON-CONTAMINATED SUBSURFACE ENVIRONMENT
… of P (i.e., adsorbed P and magnesium-bearing brushite). Their capacity to adsorb petroleum hydrocarbons was tested using benzene and batch isotherm experiments, and it was found to range between 1.6 and 2.8 μg g−1. This indicates that these potential amendments have a high affinity for …
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Complex bioactive fiber systems by means of electrospinning
… formations whereas in dynamic conditions brushite coexisted. In the second section, nanofiber functionalization strategies are investigated. First, a one-step process was introduced where a peptide-polymer-conjugate (PLLA-b-CGGRGDS) was co-spun with PLGA in such a way that the peptide is …
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The effects of calcium, magnesium and citrate health supplements on urinary risk factors for calcium oxalate kidney stone formation
… magnesium enhances citrate's ability to lower RS brushite (favourable synergistic interaction) and attenuates its ability to raise urinary pH (unfavourable synergistic interaction) and finally, calcium enhances citrate's ability to lower RS uric acid (additive effect). In the second study, the …
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The effects of calcium, magnesium and citrate health supplements on urinary risk factors for calcium oxalate kidney stone formation
… magnesium enhances citrate's ability to lower RS brushite (favourable synergistic interaction) and attenuates its ability to raise urinary pH (unfavourable synergistic interaction) and finally, calcium enhances citrate's ability to lower RS uric acid (additive effect). In the second study, the …