Particles aqueous phosphate calcium and phosphate hydroxyapatites. Medical search. Frequent questions

In the literature it can be found, there are few studies relating to removal of strontium from aqueous solutions using bone ash 18 and eggshell powder 19 . (scialert.net)

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)
Bone substrates like hydroxyapatite and tricalcium phosphate have been widely used for promoting spinal fusion and reducing the complications caused by autograft. (biomedcentral.com)
In this study, we compared the osteoinductivity of whitlockite, hydroxyapatite, and tricalcium phosphate porous particles with SD rat spine posterolateral fusion model and investigated whether whitlockite could induce ectopic ossification with SD rat abdominal pouch model. (biomedcentral.com)
The micro-CT result from the posterolateral fusion model showed whitlockite had slightly but significantly higher percent bone volume than tricalcium phosphate, though none of the materials formed successful fusion with surrounding bone tissue. (biomedcentral.com)
Whitlockite had a potential of being a better bone substrate hydroxyapatite and tricalcium phosphate in spinal fusion with low risk of inducing ectopic ossification. (biomedcentral.com)
For example, tricalcium phosphate (TCP) has a high mineral content and low cold solubility (0.02%), but α-TCP decomposes to hydroxyapatite in hot water (80-100°C). Standard oat milk is around neutral pH, and heat processing is a short time, so the solubility of the mineral remains intact. (hawkinswatts.com)
However, if adding to a hot beverage or developing a high acid, shelf-stable beverage such as a fruit or coffee flavour, this will increase the solubility of the tricalcium phosphate, releasing more free mineral ions in the system and allowing adverse interactions. (hawkinswatts.com)

Calcium phosphate nanoparticles were produced in a range of calcium-to-phosphorus ratio, (1.20-2.19) in order to analyze the morphology and crystallinity changes, and to test the bioactivity of particles. (metu.edu.tr)
The findings suggest that calcium phosphate nanoparticles produced in this work have a potential to be used as biomaterials in biomedical applications. (metu.edu.tr)
Foliar spray of calcium borate Nanoparticles (CaB 4 O 7 -NPs) was applied as a nano-fertilizer on Lactuca sativa and Cucurbita pepo , the application of CaB 4 O 7 -NPs promoted shoot and root biomass production of lettuce by 2.7 and 1.9-fold compared to the untreated plants, respectively [14]. (jchemrev.com)
The treatment of the Blackeye bean plant with hybrid chitosan-calcium oxide nanoparticles increased the growth of the plant by 8 cm and 10.7 cm compared with 6 cm for the untreated plant [15]. (jchemrev.com)
The urea-modified hydroxyapatite nanoparticles were encapsulated into cavities of the softwood of Gliricidia sepium , such nano-fertilizer composition exhibited a moderate and controlled delivery of nitrogen at three divergent pH values (4.2, 5.2, and 7) up to day 60 compared to the commercial fertilizer [19]. (jchemrev.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)
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)
This study aimed to investigate and explore the possibility of using eggshell powder (ES) and natural hydroxyapatite (HAp) derived from chicken bone for adsorption of Sr(II) ions from aqueous solutions. (scialert.net)
The artificial neural networks (ANN) are carried out for prediction of adsorption efficiency for the removal of Sr(II) ions from aqueous solution by eggshell (ES) and bone ash-hydroxyapatite (BA-HAp). (scialert.net)
The natural calcium based adsorbents seems to be a suitable low-cost material for removing strontium ions from aqueous solutions. (scialert.net)
There are many techniques for removing metal ions from aqueous solutions 2 , 3 . (scialert.net)
In order to remove Sr ions from aqueous solutions, organic and inorganic adsorbents have been widely employed 4 - 10 . (scialert.net)
Thus, a more durable, less soluble, and more translucent material was developed 33 , with chemical bonding to the dental substrate by the bonding of calcium ions to carboxylic radicals existing in the enamel, dentin and cementum. (bvsalud.org)
In this study, a strontium-doped hydroxyapatite (Sr-HAP) was synthesized by the sol-gel method, which used as adsorbent to remove lead ions (Pb 2+ ) from water. (researchsquare.com)

2015 ) prepared a hydroxyapatite/chitosan (HAP/CS) porous material with a pore size of 100 ~ 300mm to adsorb Pb 2+ , and its maximum adsorption capacity was 264.42 mg/g. (researchsquare.com)

A systematic evaluation of mechanical and biocompatibility properties of different volume fractions of hydroxyapatite whiskers in comparison with three commercial dental composites filled with micro- and nanosilica particles was carried out. (hindawi.com)
Six groups with different hydroxyapatite whiskers mass fractions were taken into account in order to be compared with the performances of silica particles based composites group. (hindawi.com)
With this aim, different mass fraction of hydroxyapatite based composites and three commercial composites loaded with silica particles were tested and compared in order to verify the effective enhancement in both biocompatibility and mechanical properties. (hindawi.com)
Hydroxyapatite (HAP) as the most thermally stable crystalline phase of CaP is mostly used in the form of ceramics or composites scaffolds with polymers. (encyclopedia.pub)
Hydroxyapatite-PMMA composites. (dokumen.pub)
Hydroxyapatite-PS composites. (dokumen.pub)

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)
These studies are limited in the literature although there is no study about the artificial neural networks was used for modeling of adsorption of Sr(II) from aqueous solutions by eggshell and bone ash. (scialert.net)
11 Calcium phosphate-coated implants have been described in the literature which demonstrate early direct bone attachment to the hydroxyapatite surface and this occursas quickly as one month post-operatively. (com.pk)

In this study, we develop an integrated process for the direct recovery and separation of dicalcium phosphate dihydrate for fertilizer and livestock feed additive production from a low-grade (2.0 wt% P) iron-rich (19.7 wt% Fe) phosphate ore. (rsc.org)
The developed process achieves around 70% phosphorus recovery as an industrial-grade (19 wt% P) dicalcium phosphate dihydrate product with minimal iron, magnesium, and aluminum contamination, while also producing value-added calcium sulfate dihydrate (gypsum) and iron/magnesium byproducts. (rsc.org)
40% P 2 O 5 ), while livestock feed additives are usually in the form of dicalcium phosphate (CaHPO 4 ), monocalcium phosphate (Ca(H 2 PO 4 ) 2 ), or defluorinated phosphate (Ca 3 (PO 4 ) 2 ). (rsc.org)
This means the amount of dicalcium phosphate required is higher to achieve the same dosage of calcium in the final product. (hawkinswatts.com)

2004 ) used calcined hydroxyapatite to adsorb Pb 2+ , Zn 2+ and Cu 2+ , and found that at pH 5, the adsorption capacity of HAP on Pb 2+ , Zn 2+ and Cu 2+ were 85.6, 29.8 and 20.6 mg/L, respectively. (researchsquare.com)
14] Yea X., Liua T., Li Q., Liua H., Wu Z., Comparison of Strontium and Calcium Adsorption Onto Composite Magnetic Particles Derived from Fe 3 O 4 and Bis(trimethoxysilylpropyl) amine , Colloids Surf . (nsmsi.ir)

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)

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 composition of amorphous calcium phosphate is CaxHy(PO4)z·nH2O, where n is between 3 and 4.5. (wikipedia.org)
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)
A commercial preparation of ACP is casein phosphopeptide-amorphous calcium phosphate (CPP-ACP), derived from cow milk. (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)
Amorphous calcium phosphate in combination with casein phosphopeptide has been used as a dental treatment to treat incipient dental decay. (wikipedia.org)
XRD patterns, HRTEM, SAED, and SEM analyses revealed the amorphous nature of the asprepared nano calcium phosphate particles at low Ca/P ratios. (metu.edu.tr)

The characterization results confirmed that nanometer-sized, spherical calcium phosphate particles were produced. (metu.edu.tr)

For this reason, in the recent five years hydroxyapatite particles and whiskers have been added as novel bioactive and biocompatible reinforcing filler in dental restorations. (hindawi.com)

Effects of strontium-substitution in sputter deposited calcium phosphate coatings on the rate of corrosion of magnesium alloys. (pitt.edu)
In this work, a strontium-doped hydroxyapatite (Sr-HAP) was synthesized by the sol-gel method. (researchsquare.com)
TEOS xerogel was investigated as adsorbent to removal strontium ion from aqueous solution in batch operations. (nsmsi.ir)

The present study evaluates the synthesis of biocompatible osteoconductive and osteoinductive nano calcium phosphate (CaP) particles by industrially applied, aerosol-derived flame spray pyrolysis method for biomedical field. (metu.edu.tr)

The concentration of calcium phosphate is higher in milk than in serum, but it rarely forms deposits of insoluble phosphates. (wikipedia.org)
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)
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)
When insoluble particles are added to a beverage they must be as small as possible or else they will sediment rather than stay suspended. (hawkinswatts.com)

These powdered particles that get condensed upon the surface of the substrate ultimately fuse together to form a thin film over the implant surface. (com.pk)

Data obtained show better interfacial interaction with filler/matrix until 20 wt% of hydroxyapatite whiskers partially replaced silica particles filler. (hindawi.com)
In fact, it was shown that the incorporation of hydroxyapatite with whiskers morphology can provide larger load transfer and favor toughening mechanisms, thus, increasing flexural modulus and fracture toughness of resins in comparison with conventional silica based fillers [ 6 - 11 ]. (hindawi.com)
In addition, hydroxyapatite whiskers (wHA) have been considered the best option as reinforcing filler in comparison with other whiskers based on carbon, ceramic, glass, metal, and polymer due to the absence of cytotoxicity effects [ 12 , 13 ]. (hindawi.com)
This information is of primary interest in order to achieve a final consistency and specific formulation of hydroxyapatite whiskers mixed with silica particles filler in resin composite. (hindawi.com)
6] Park J., Photocatalytic Activity of Hydroxyapatite-Precipitated Potassium Titanate Whiskers , J. Alloys Compd . (nsmsi.ir)

In the present study, the calcium phosphate powders (HAP, HAP-TCP) were produced by a precipitation technique involving the use of aqueous solutions of calcium nitrate and diammonium hydrogen phosphate. (metu.edu.tr)

Thermochimie des solutions aqueuses: calculs de solubilité de composés inorganiques (phosphates, carbonates, oxalates. (epfl.ch)

and the liquid consists of calcium chloride which is a setting accelerator and water-reducing agent in aqueous solution [ 12 ]. (biomedcentral.com)
Alternatively, precipitated calcium carbonate can also be the product of contacting calcium with carbonate salts (e.g., calcium chloride and sodium carbonate) in an aqueous environment. (hurtowniaanita.pl)
Title: Calcium chloride and sodium phosphate in neonatal parenteral nutrition containing TrophAmine: precipitation studies and aluminum content. (aablocks.com)

In particular, six different ratios of hydroxyapatite/silica particles were investigated. (hindawi.com)

CN103663526A Superfine heavy calcium carbonate. (hurtowniaanita.pl)
The invention discloses a superfine heavy calcium carbonate preparation method, relates to a wet preparation method of superfine heavy calcium carbonate, and provides a preparation method of superfine heavy calcium carbonate with grain size less than 0.5 micron. (hurtowniaanita.pl)
Ultrasonic Dispersing and Wet-milling of Calcium Carbonate (CaCO3) Cement, and its paved derivative, concrete, is a widely-consumed material in any modern society: residential walkways, recreational parks and building construction are just some of the many uses of cement. (hurtowniaanita.pl)
The process of obtaining calcium carbonate nanopowders includes two stages: dry and wet milling processes. (hurtowniaanita.pl)
Ground calcium carbonate, commonly referred to as GCC, is widely used as an industrial mineral.Ground calcium carbonate process refers to the ground calcium carbonate manufacturing or production process, in which raw materials are ground to fine and even ultra-fine ground calcium carbonate powder. (hurtowniaanita.pl)
Processing of calcium carbonate, kaolin and titanium dioxide. (hurtowniaanita.pl)
Calcium carbonate (CaCO3) may be used for lead removal. (hurtowniaanita.pl)
When the large calcium carbonate is fed into ball mill, it will be ground and the grain size can is between 0.074mm and 0.4mm, in normal, this final calcium carbonate can not meet the required size of industries. (hurtowniaanita.pl)
processing calcium carbonate caco3 wet milling Calcium Carbonate Mill Feed size ≤15 ≤25mm Discharge size 0.125 0.010mm Applications grinding processing calcium carbonate gypsum powder processing power plant desulfurization milling non metallic minerals coal preparation and so on. (hurtowniaanita.pl)
Grinding Mills, Grinding Machines, Calcium Carbonate Grinding Mill manufacturer / supplier in China, offering High Efficiency Grinding Mill Machine for Calcium Carbonate Powder Manufacturing, High Efficiency 28 Rollers Grinding Mill, Super Fine Powder Solution of Wet Grinding Mill and so on. (hurtowniaanita.pl)
wet grinding mill for calcium carbonate caco. (hurtowniaanita.pl)

In wastewater, P exists as one of several possible phosphate compounds including orthophosphate, polyphosphates, and organic phosphate (Crites and Tchobanoglous 1998). (ufl.edu)

citation needed] ACP lacks the long-range, periodic atomic-scale order of crystalline calcium phosphates. (wikipedia.org)

Synthesis of Hybrid Polyphenol/Hydroxyapatite Nanomaterials with Anti-Radical Properties. (upmc.fr)

Preforms of calcium phosphate ceramics were produced by using a modified slip casting technique. (metu.edu.tr)

Indeed, in a study originally aimed to show that the bonding phenomenon is chemical in nature, surface topography changes in the micrometer range were observed in hydroxyapatite ceramic implants, suggesting that micromechanical interlocking contributed to the bonding mechanism [8]. (toysis.pics)

Title: Budget-impact model for colonoscopy cost calculation and comparison between 2 litre PEG+ASC and sodium picosulphate with magnesium citrate or sodium phosphate oral bowel cleansing agents. (aablocks.com)

Studies have shown that it does form a remineralized phase of hydroxyapatite consistent with the natural enamel. (wikipedia.org)
As the main biomineral component in enamel and dentine, hydroxyapatite is responsible for their higher mechanical performances. (hindawi.com)

Hydroxyapatite-glass nanocomposites. (dokumen.pub)
Hydroxyapatite-YSZ nanocomposites. (dokumen.pub)
Hydroxyapatite-Ti nanocomposites. (dokumen.pub)
Hydroxyapatite-collagen nanocomposites. (dokumen.pub)

Such mixtures are also known as calcium phosphate cement. (wikipedia.org)

2017 ) studied the magnetic hydroxyapatite-mixed oxidation of multi-walled carbon nanotubes (mHAP-oMWCNTs) to remove Pb 2+ in water, and the results showed that mHAP-oMWCNTs showed better performance than mHAP, mMWCNT and HAP-oMWCNTs. (researchsquare.com)
2013 ) prepared Si-CHAP by hydrothermally doping silicon carbon into hydroxyapatite. (researchsquare.com)

The process combines leaching using dilute sulfuric acid (0.29 M) and selective precipitation using calcium oxide. (rsc.org)

Ahmed F, Rashid H, Farookhi S, Verma V, Mulyar Y, Khalifa M, Sheikh Z. Surface modifications of endosseous dental implants by incorporation of roughness and hydroxyapatite coatings. (com.pk)

This paper discusses the processes of grit-blasting, plasma spraying, acid-etching, anodization and implant surface coatings with hydroxyapatite. (com.pk)

Aqueous tape-cast slurries of hydroxyapatite with a solid loading of 32 vol% were prepared from various fractions of aggregated (mean particle size 4.7 - 5.6 μm) and dispersed powder (mean particle size 0.17 - 0.29 μm). (ceramic-science.com)

New iron phosphate and borophosphate compounds were synthesized and characterized by single crystal/powder X-ray diffraction, infrared spectroscopy, raman spectroscopy, thermogravimetric analysis, electron microscopy and elemental analysis. (metu.edu.tr)

In addition, biocompatibility test showed less cytotoxic effect with the addition of 20 wt% of hydroxyapatite in comparison with higher rates. (hindawi.com)
To overcome the present lack in the literature about hydroxyapatite based composite, we proposed a systematic analysis of the mechanical and biocompatibility performances of them in comparison with commercial dental composite. (hindawi.com)

2. Organic Phosphate is contributed by human excreta (feces) and food residues. (ufl.edu)
Organic phosphates are present in sugars, phospholipids, and nucleotides. (ufl.edu)

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)
Calcium hydroxylapatite combines high elasticity and viscosity with an ability to induce long-term collagen formation making it an ideal agent for a global facial approach. (jcadonline.com)

Under electron microscopy, its morphological form is shown as small spheroidal particles in the scale of tenths nanometer. (wikipedia.org)
Noncellular materials such as mineral crystals, corro- examination of biofilms would await the electron microscope, sion particles, clay or silt particles, or blood components, which allowed high-resolution photomicroscopy at much depending on the environment in which the biofilm has devel- higher magnifications than did the light microscope. (cdc.gov)

Chemical Properties of Calcium Phosphate" Encyclopedia , https://encyclopedia.pub/entry/31249 (accessed December 02, 2023). (encyclopedia.pub)
Hydroxyapatite: Structure and properties. (dokumen.pub)
Objectives: To mark the milestone of 10 years of use in the aesthetic field, this review will consider the evolution of calcium hydroxylapatite in aesthetic medicine, provide a detailed injection protocol for a global facial approach, and examine how the unique properties of calcium hydroxylapatite provide it with an important place in today's market. (jcadonline.com)

After this threshold, the mechanical performances decrease dramatically due to both the hydroxyapatite agglomerates formation and the low degree of resin conversion. (hindawi.com)

Background: Calcium hydroxylapatite is one of the most well-studied dermal fillers worldwide and has been extensively used for the correction of moderate-to-severe facial lines and folds and to replenish lost volume. (jcadonline.com)

Phosphorus supplements are usually produced from high-grade phosphate rock concentrates (28-40 wt% P 2 O 5 ). (rsc.org)
The main role of phosphate supplements is to deliver soluble and bioavailable phosphorus to plants and livestock as crop fertilizers or animal feed additives. (rsc.org)

The average primary particle size was determined as 23 nm by counting more than 500 particles in TEM pictures. (metu.edu.tr)
In light of these drawbacks, Industrial Sonomechanics has developed a flow-through, ultrasonic wet milling process, which employs high-amplitude ultrasound to quickly reduce the size of CaCO 3 particles down to the required d 50 (hurtowniaanita.pl)
According to Stokes Law below, particle size ( d ) is the most significant factor in determining sedimentation rate. (hawkinswatts.com)
A small particle size also helps to reduce any gritty mouthfeel. (hawkinswatts.com)
Nanocrystalline and nanostructured TiO2-Cr2O3 thin films and powders were prepared by a facile and straightforward aqueous particulate sol-gel route at low temperature of 400°C. The prepared sols showed a narrow particle size distribution with hydrodynamic diameter in the range of 17.7 nm to 19.0 nm. (sharif.edu)
The prepared sols showed a narrow particle size distribution with hydrodynamic diameter in the range 17.2-19.3 nm. (sharif.edu)
particle size and surface coating are the most important intrinsic factors. (jchemrev.com)

In the wet phosphoric acid process, the phosphate rock is reacted with sulfuric acid (H 2 SO 4 ), producing gypsum (CaSO 4 ·2H 2 O) and aqueous phosphoric acid (reaction (1) ). (rsc.org)

Title: Comparison of patient acceptance of sodium phosphate versus polyethylene glycol plus sodium picosulfate for colon cleansing in Japanese. (aablocks.com)

Conclusion: Calcium hydroxylapatite is a very effective agent for many areas of facial soft tissue augmentation and is associated with a high and well-established safety profile. (jcadonline.com)

Title: Interaction of the non-phosphorylated peptide G7-18NATE with Grb7-SH2 domain requires phosphate for enhanced affinity and specificity. (aablocks.com)

The Sr(II) removal from aqueous solutions by natural calcium based materials were studied in a batch mode. (scialert.net)

Anatomy14

Organisms11

Diseases8

Chemicals and Drugs157

Analytical, Diagnostic and Therapeutic Techniques and Equipment23

Phenomena and Processes41

Disciplines and Occupations1

Technology, Industry, Agriculture2

Information Science3

Health Care1

Removal of strontium from aqueous solutions1

Tricalcium8

Nanoparticles5

Ions10

Porous1

Composites6

Bone3

Dicalcium phosphate4

Adsorption2

Octacalcium phosphate2

Amorphous7

Characterization1

Bioactive1

Strontium3

Biocompatible1

Insoluble4

Substrate1

Whiskers5

Diammonium1

Carbonates1

Chloride3

Ratios1

Carbonate11

Wastewater1

Crystalline1

Nanomaterials1

Ceramics1

Ceramic1

Magnesium1

Enamel2

Nanocomposites4

Cement1

Carbon2

Precipitation1

Implants1

Coatings1

Fractions1

Compounds1

Biocompatibility2

Organic2

Combines2

Electron2

Properties3

Mechanical1

Fillers1

Phosphorus2

Size7

Gypsum1

Versus1

Conclusion1

Peptide1

Batch1