Calcium hydrogen phosphate dihydrate (CHPD, CaHPO4· 2H2O) or brushite is found quite frequently in urinary calculi (stones). Crystallization of brushite has been carried out in sodium metasilicate (SMS) gel with and without adding ‘Sr’ as additive. In pure system, dicalcium phosphate anhydrous (DCPA, CaHPO4) or monetite and hydroxyapatite (HA, Ca5(PO4)3(OH)) grew along with brushite. The presen...

OBJECTIVE Osteomyelitis in the diabetic foot is a major risk factor for amputation, but there is a limited understanding of early-stage infection, impeding limb-preserving diagnoses. We hypothesized that bone composition measurements provide insight into the early pathophysiology of diabetic osteomyelitis. RESEARCH DESIGN AND METHODS Compositional analysis by Raman spectroscopy was performed ...

Dicalcium phosphate dihydrate (DCPD) reacts with fluoride ion in an aqueous solution and forms stable fluoroapatite (FAp). This reaction requires a lag time to form nano-sized precursor, hydroxyapatite (HAp)-like calcium phosphate, on DCPD surface. This long lag time prevents DCPD from applying as an effective fluoride removal agent from waste water. The purpose of this study is to improve the ...

The role of guanine nucleotides in insulin secretion was investigated in electrically permeabilized RINm5F cells. Ca2+ stimulated insulin release (EGO 2 p~ Ca2+). The GTP stable analog, GTPrS, elicited insulin secretion at vanishingly low Ca2+ concentrations (<lo-” M), slightly potentiated the response to intermediate Ca2+ levels, but exerted less than additive effects at maximal Ca2+ conce...

The rate of resorption calcium phosphate self-hardening materials for bone regeneration can be changed by changing the phase composition. Ca3(PO4)2/CaCO3/Ca(H2PO4)2·H2O/Na2HPO4·12H2O system is important synthesis self-curing bioactive with variable rates ratios initial components. Cement compositions in twelve figurative points a four-component composition diagram at fixed content α-Ca3(PO4)2 w...

In this study, an injectable bone substitute (IBS) consisting of citric acid, chitosan, and hydroxyl propyl methyl cellulose (HPMC) as the liquid phase and tetra calcium phosphate (TTCP), dicalcium phosphate dihydrate (DCPD) and calcium sulfate dehydrate (CSD, CaSO4 x 2H2O) powders as the solid phase, were fabricated. Two groups were classified based on the percent of citric acid in the liquid ...

We tested the hypothesis that fate of dietary phosphorus will not differ among a dicalcium phosphate-free practical diet treated with 6-phytase (3000 FTU/kg; Quantum Blue™; P-F + Phy), and positive (C) negative (P-F) control diets when fed to hybrid tilapia (Oreochromis aureus x O. niloticus; 29.8 g initial weight) stocked at 29 fish/m3 grown for 5 months market size (454 g/fish) in outdoor bio...