• These included conversion of calcium oxalate dihydrate towards calcium oxalate monohydrate, changes in carbapatite spectra towards an amorphous phase, changes of magnesium ammonium phosphate towards a differing amorphous and crystalline phase and the appearance of hydroxyapatite on brushite fragments. (uzh.ch)
  • As early as 1797, Wollaston described urinary stone components as magnesium and ammonium phosphate in his publication entitled "On gouty and urinary concretions" [ 11 ]. (academie-sciences.fr)
  • Calcium oxalate/calcium phosphate, magnesium-ammonium phosphate, and staghorn calculi are associated with alkaline urine. (medscape.com)
  • The resulting amorphous mixture consists mostly of calcium and phosphate, but also contains varying amounts of water and hydrogen and hydroxide ions, depending on the synthesis conditions. (wikipedia.org)
  • Also, a first synthesis of deuterated amorphous biominerals including amorphous calcium carbonate (ACC), amorphous magnesium carbonate (AMC) and amorphous calcium phosphate (ACP). (kent.ac.uk)
  • A convenient and effective soft chemical method is presented for the synthesis of nano-scaled calcium citrate sheets. (jostchemical.com)
  • In this study, we reveal for the first time the chemical composition of the exoskeleton of Daphnia magna, using Raman spectroscopy , to be composed of α-chitin and proteins with embedded amorphous calcium carbonate (ACC). (nature.com)
  • Biominerals are key to all life, whether they make up exoskeletons of marine organisms (amorphous calcium carbonate), human bones (amorphous calcium phosphate) or being signs of extra-terrestrial life (amorphous iron sulfate) but little is know of their atomistic structures. (kent.ac.uk)
  • For example, the presence of calcium during struvite precipitation can decrease mineral purity by co-precipitating calcium carbonate and calcium phosphate minerals with struvite. (rsc.org)
  • ACP is generally categorized into either "amorphous tricalcium phosphate" (ATCP) or calcium-deficient hydroxyapatite (CDHA). (wikipedia.org)
  • It has been demonstrated that ACP has better osteoconductivity and biodegradability than tricalcium phosphate and hydroxyapatite in vivo. (wikipedia.org)
  • It can inhibit the formation, growth, and dissolution of hydroxyapatite crystals and their amorphous precursors by chemisorption to calcium phosphate surfaces. (nih.gov)
  • Etidronate disodium chemisorbs to calcium hydroxyapatite crystals and their amorphous precursors, blocking the aggregation, growth, and mineralization of these crystals. (nih.gov)
  • Adsorption of mucin by hydroxyapatite is related mainly to Ca-dependent electrostatic interactions between calcium ions and COO- of mucin [5]. (romj.org)
  • The objective of this thesis was to fabricate Hydroxyapatite on magnesium alloy for orthopedic biodegradable implant operations. (wichita.edu)
  • Hydroxyapatite (HA) is a calcium phosphate bio ceramic material that has nearly identical properties to that of the mineral component of bone. (wichita.edu)
  • The present work aims to deposit Hydroxyapatite (HA) on magnesium AZ31using electrode position technique to enhance the bio-degradable property of magnesium implant material. (wichita.edu)
  • Inorganic material is made up mainly of hydroxyapatite or other types of calcium phosphate. (wikilectures.eu)
  • Amorphous calcium phosphate (ACP) is a glassy solid that is formed from the chemical decomposition of a mixture of dissolved phosphate and calcium salts (e.g. (wikipedia.org)
  • The preparation involved the precipitation of nano-calcium citrate by adding ethanol to reach the super saturation state of a solution containing calcium and citrate salts. (jostchemical.com)
  • The phosphates used for conventional water treatment, have the role of maintaining the pH, while precipitating the salts. (fineaminchemicals.com)
  • Effects of sodium, magnesium, and calcium salts on the coagulation performance of cucurbit[8]uril for humic acid removal from synthetic seawater. (xjtu.edu.cn)
  • Unfolded phosphopeptides are believed to sequester ACP nanoclusters and form stable complexes in other biofluids such as urine and blood serum, preventing deposition of insoluble calcium phosphates and calcification of soft tissue. (wikipedia.org)
  • Sodium hexametaphosphate is used as a water softener in dyeing or post-processing, which can capture calcium ions and magnesium ions from the insoluble calcium soap, magnesium soap or calcium dye and magnesium dye precipitates that have been formed, and re-dissolve the precipitate. (chemindustry.com)
  • It is believed that ACP hydrolyzes under physiological temperatures and pH to form octacalcium phosphate as an intermediate, and then surface apatite. (wikipedia.org)
  • In aqueous media, ACP is easily transformed into crystalline phases such as octacalcium phosphate and apatite due to the growing of microcrystallites. (wikipedia.org)
  • Inactive ingredients: Each tablet contains magnesium stearate, microcrystalline cellulose, pregelatinized starch and starch (corn). (nih.gov)
  • The core, intermediate and surface envelopes consist in calcium phosphate apatite associated with whitlockite and amorphous carbonated calcium phosphate, all clarified by Fourier Transform InfraRed spectroscopy. (academie-sciences.fr)
  • Hybrid anion exchange resin containing hydrous ferric oxide (HAIX-Fe) was used in column tests to remove phosphate (PO 4 ) from fresh urine, hydrolyzed urine, and anaerobic digester filtrate, and subsequently recover PO 4 as struvite (MgNH 4 PO 4 ·6H 2 O) or potassium struvite (MgKPO 4 ·6H 2 O) via precipitation in the spent regenerant. (rsc.org)
  • However, whilst its unequivocal presence in bones and teeth is debated, there is evidence that transient amorphous precursors are involved in the development of bone and teeth. (wikipedia.org)
  • In the laboratory, stored samples of formulations of artificial blood, serum, urine and milk (which approximate the pH of the naturally occurring fluid) deposit insoluble phosphates. (wikipedia.org)
  • 6 Thus, P recovery from the most concentrated waste streams that comprise domestic wastewater, such as human urine and anaerobic digester sidestreams, 7,8 would provide an alternative to phosphate rock fertilizers while having the important benefits of decreasing nutrient loading to receiving waters and reducing operational problems caused by mineral scaling at wastewater treatment plants. (rsc.org)
  • Recovery of phosphorus (P) from various types of wastewater has been proposed as a more sustainable alternative to phosphate rock mining due to concerns about the finite supply of phosphate rock, economic scarcity of phosphate, and the critical need for P in agriculture and food production. (rsc.org)
  • These consist of rebuilding the enamel minerals lost during the carious process with calcium, phosphorus, and fluoride preparations. (tooth-life.com)
  • Phosphorus does not exist in elemental form in the natural environment because elemental P is extremely reactive and readily combines with oxygen (O) to form phosphate (PO 4 ). (ufl.edu)
  • The term phosphate rock (or phosphorite) is used to denote any rock with high phosphorus content. (mineralseducationcoalition.org)
  • The largest and least expensive source of phosphorus is obtained by mining and concentrating phosphate rock from the numerous phosphate deposits of the world. (mineralseducationcoalition.org)
  • Such mixtures are also known as calcium phosphate cement. (wikipedia.org)
  • phosphoric acid and aluminum dihydrogen phosphate binder are used together with activated aluminum hydroxide, talc, magnesium oxide, calcium aluminate cement, etc. (wgraj.net)
  • Retarders are mainly used in amorphous refractories bonded with calcium aluminate cement containing fast hardening minerals. (wgraj.net)
  • For the castable with ultra-fine silica powder as the main binder, calcium aluminate cement can be used as the delayed accelerator, because Al3+ and Ca2+ ions can be released slowly during the hydrolysis process of calcium aluminate cement. (wgraj.net)
  • Precipitation from a moderately supersaturated and basic solution of a magnesium salt produces amorphous magnesium calcium phosphate (AMCP), in which magnesium incorporated into the ACP structure. (wikipedia.org)
  • In the study, the team developed a dissolution-precipitation method to convert eggshells into endotoxin-free and immunocompatible amorphous calcium phosphate (ACP) particles. (keaipublishing.com)
  • Objective - Mucin can promote formation of gallstones via precipitation with calcium phosphate. (romj.org)
  • relates to the formulation of solid dispersions comprising a hardly soluble drug substance together with a carrier (PVP), wherein the the drug substance is present in amorphous form or in crystalline form (Khougaz K et al. (allindianpatents.com)
  • Calcium Citrate Tetrahydrate USP/GB Ultrafine Powder can be used as a dietary ingredient and as a nutrient. (jostchemical.com)
  • However, the addition of aluminum powder should be appropriate, otherwise the strength of amorphous refractories will be greatly reduced, or uneven connected pores will be caused. (wgraj.net)
  • The indomethacin is physically mixed with the silica by co-grinding or melting resulting in amorphous form of indometacin (Watanabe T et al. (allindianpatents.com)
  • Commonly it is light-colored, indicating that it is a volcanic rock high in silica content and low in iron and magnesium, a type usually classed as rhyolite. (mineralseducationcoalition.org)
  • The crystalline precipitates gradually become amorphous and loosely adherent facilitating online cleaning. (fineaminchemicals.com)
  • Calculations support the description of a cluster with central Ca2+ ion surrounded by six phosphate PO43− anions, which in turn are surrounded by eight further calcium ions. (wikipedia.org)
  • The idea behind it is that the posner molecules meld and release calcium-ions which stimulises the neurons. (wikipedia.org)
  • By contrast to phosphates, the FINEAMIN®, components are adsorbed on the crystalline compounds of calcium and magnesium and hence prevent further crystal growth and sludge formation. (fineaminchemicals.com)
  • In wastewater, P exists as one of several possible phosphate compounds including orthophosphate, polyphosphates, and organic phosphate (Crites and Tchobanoglous 1998). (ufl.edu)
  • The aim of the present work was to investigate the chemiluminescence (CL) of neutrophils activated with calcium phosphate particles coated with mucin. (romj.org)
  • Effects of strontium-substitution in sputter deposited calcium phosphate coatings on the rate of corrosion of magnesium alloys. (pitt.edu)
  • Magnesium (Mg) and its alloys are potential biodegradable implant materials because of their alluring biological property. (wichita.edu)
  • This kind of admixture can be used to prepare lightweight porous amorphous refractories. (wgraj.net)
  • Here we aimed to investigate the anti-inflammatory effects of calcium citrate in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. (jostchemical.com)
  • The anti-inflammatory effects of calcium citrate were investigated by assessing pro-inflammatory factors (NO, ROS, NF-κB, iNOS, and COX-2) and pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α). (jostchemical.com)
  • Eggshells is an ideal raw material to synthesize bone graft materials as it contains plenty of calcium and phosphorous components," said first author of the study, Dr Qianli Ma Qianli Ma the Department of Biomaterials at the University of Oslo (UiO). (keaipublishing.com)
  • Post treatment of HA coating is required to convert the amorphous phases into complete HA. (wichita.edu)
  • The experimental results signified that HA coatings after post treatment in alkali solution 1M NaOH can slowdown the biodegradation rate of AZ31 magnesium alloy in Phosphate Buffered Saline (PBS). (wichita.edu)
  • Calcium phosphate (CaP)-based biomaterials have superior properties and have been widely used for bone defect repair, due to their similarities to the inorganic components of human bones. (encyclopedia.pub)
  • Inorganic Phosphate is contributed by detergents and household cleaning products such as soaps. (ufl.edu)
  • Calcium phosphatic stones are characteristic of communities, such as those of the Neolithic period, where the diet was rich in cereal carbohydrates and poor in animal proteins. (academie-sciences.fr)
  • In this contribution, we proposed a new solvent system for PAs by replacing a portion of the FA with urea and calcium chloride (FAUCa). (preprints.org)
  • Urea imparts the hydrogen bonding and calcium ion from the calcium chloride, as a Lewis acid was added to the system to compensate for the pH decrease due to the addition of urea. (preprints.org)
  • 2020). Tracking the interaction of drug molecules with individual mesoporous amorphous calcium phosphate/ATP nanocomposites - an X-ray spectromicroscopy study . (lightsource.ca)
  • The following table shows the representation of other common forms of calcium phosphate in enamel. (wikilectures.eu)
  • These highlights do not include all the information needed to use ROSUVASTATIN CALCIUM TABLETS safely and effectively. (nih.gov)
  • See full prescribing information for ROSUVASTATIN CALCIUM TABLETS. (nih.gov)
  • Rosuvastatin calcium tablets can be taken with or without food, at any time of day. (nih.gov)
  • Advise patients to promptly report to their physician unexplained and/or persistent muscle pain, tenderness, or weakness and discontinue rosuvastatin calcium tablets if signs or symptoms appear. (nih.gov)
  • For-example, attempts to increase the surface area of a compound, either by spraying the amorphous compound onto an inert carrier or by micronising the compound. (allindianpatents.com)
  • The composition of amorphous calcium phosphate is CaxHy(PO4)z·nH2O, where n is between 3 and 4.5. (wikipedia.org)
  • Following investigations into the composition of amorphous calcium phosphates precipitated under different conditions, Posner and Betts suggested in the mid-1970s that the structural unit of ACP was a neutral cluster Ca9(PO4)6. (wikipedia.org)
  • Retarders can delay the setting and hardening time of amorphous refractories, and the action mechanism of retarders varies with the properties of binders and retarders used. (wgraj.net)
  • toxic oxygen scavengers (hydrazine) to act against residual oxygen, phosphates to control and adjust the pH, polymers to prevent "phosphates hideouts" etc. (fineaminchemicals.com)
  • an oxygen scavenger to remove the residual oxygen from the water, phosphates for cleaning, ammonia for stabilizing the system pH and so on. (fineaminchemicals.com)
  • However, the major limitation of magnesium is its rapid degradation in physiological fluids and low corrosion resistance property which might lead to failure of implants. (wichita.edu)
  • These models used well defined molecular units and yielded results showing the calcium distribution throughout ACC to be uniformed, contrary to former reports on the atomistic structure of ACC. (kent.ac.uk)
  • Although the demand for additional calcium during pregnancy is recognized, the dietary reference intake for calcium was lowered for pregnant women in 1997 to amounts recommended for nonpregnant women (1,000 mg/day), and recently (November 2010) the Institute of Medicine report upheld the 1997 recommendation. (jostchemical.com)
  • Material and Methods - Polydisperse calcium phosphate nanowires (CP) were prepared from hot gelatin solution and according to scanning electron microscopy (SEM) had the length 1-10 μm and thickness 50-450 nm. (romj.org)
  • Chemical Properties of Calcium Phosphate" Encyclopedia , https://encyclopedia.pub/entry/31249 (accessed December 02, 2023). (encyclopedia.pub)
  • The properties and varieties of concrete additives for refractories, especially refractory castables, ramming materials, plastics and other amorphous refractories are different. (wgraj.net)