3830 results about "Calcium EDTA" patented technology

An injectable and moldable putty comprising biodegradable calcium-based compounds including calcium sulfate, hydroxyapatite, and tricalcium phosphate is invented. The putty hardens into a solid body when mixed with water, saline, serum, or other neutral aqueous solutions. The hardening time of the putty can be tailored in order to meet the specific requirements of various dental or orthopedic applications. The pH of the putty is neutral during and after mixing. The invented putty may be used as bone graft, bone implant, or implantable drug delivery device.

Disclosed are oral care compositions comprising selected surface-active organophosphate compounds and methods of use to provide protection of teeth from erosion caused by the action of chemicals, such as harsh abrasives and acids. The surface-active organophosphate compounds are substantive to teeth, the phosphate groups binding the calcium in teeth and thus preventing loss of calcium from dissolution when contacted with acids. The organophosphate compound may also deposit a protective surface coating that prevents contact of teeth with erosive challenges. Selected organophosphate compounds contain one or more phosphate groups and are combined in the oral care composition with one or more of a fluoride ion agent, an antimicrobial agent preferably selected from quaternary ammonium compounds and polyvalent metal salts, an anticalculus agent and additional surfactant, to provide benefits including superior anti-erosion, anticaries, antiplaque and anti-staining as demonstrated by enhanced fluoride uptake, remineralization, resistance to acid demineralization and antimicrobial activities, resulting in improved overall tooth health, structural integrity and appearance.

The invention is a medical implantable device which is coated by the method according to the invention. The surface of the substrate used for the implantable device, in the raw condition, following a cleaning regime and physiochemical pretreatments, is coated using a biomimetic process in a supersaturated calcium phosphate solution (SCPS) to obtain the desired coating coverage and morphology maintaining a ratio of calcium to phosphorus pH, as well as solution temperature plays a major role in yielding precipitation of the proper phase of CaP so that composition, morphologies, crystal structures, and solubility characteristics are optimal for the deposition process. The biomimetic coating adds the attribute of osteoconductivity to the implant device. To maximize bone growth, the implant must also induce bone growth, or possess the attribute of osteoinductivity. This attribute is acquired by the use of therapeutic agents, i.e. bone morphogenic proteins (BMP), growth factors, stem cells, etc. The preparation of the SCPS solution is slightly altered so that during the immersion of the implant in the SCPS, the therapeutic agents are co-precipitated and bonded with the CaP directly on the underlying surface of the implant device. A final dipping process into a BMP solution provides an initial burst of cellular activity. For delivering stem and/or progenitor cell, after drying the dipped solution of BMP, the cells are cultured on the surface of the implant.

Aluminum and aluminum-zirconium antiperspirant compositions comprising basic aluminum chlorides that have a particular molecular size distribution defined by having an SEC-HPLC Band III/II ratio of at least 0.5, having SEC-HPLC Band III plus Band II area of at least 70% of the total area and having SEC-HPLC Band I content no more than 5% and containing betaine (trimethylglycine), calcium and/or strontium are disclosed. Also disclosed are the methods of making these compositions and the use thereof in consumer acceptable antiperspirant vehicles such as aerosols, gels, roll-on, sticks and soft solids.

The invention relates to a restoration agent for saline-alkali land soil, which consists of free gypsum dehydration, nature organic substance, microbial fertilizer and inorganic nutrient with weight ratio of 60-70:25-35:1-4:3-6; the content of dihydrate calcium sulfate in the free gypsum dehydration is over 80 percent; the nature organic substance consists of weathered coal and grass carbon with weight ratio of 1.0:0.93; the content of effective bacteria in the microbial fertilizer is 2.0 hundred millions/g; and the inorganic nutrient consists of urea, ordinary superphosphate and potassium chloride with weight ratio of 1.0:2.42:075. The restoration agent can utilize calcium ions in the free gypsum dehydration for replacing sodium ions in the soil so as to lower the alkalinity in the soil and provide calcium and sulfur elements for crops, while the nature organic substance can lower and regulate the slat content and the alkalinity in the soil. In addition, the nature organic substance, the microbial fertilizer and the inorganic nutrient can supply large amount of nutrient elements such as nitrogen, phosphorus, potassium and the like to the crop for normal growth, thereby being capable of improving the yield of the crop.

The present invention relates to ligands capable of binding a calcium dependent binding protein, that comprise an amino acid sequence corresponding to that of a wild type ligand for the calcium dependent binding protein with modification which results in enhanced affinity of the ligand for the calcium dependent binding protein.

Compositions containing strontium fortified calcium nanoparticles and/or microparticles, and methods of making and using thereof are described herein. The strontium fortified calcium compounds contain calcium ions, calcium atoms, strontium ions, strontium atoms, and combinations thereof and one or more anions. Exemplary anions include, but are not limited to, citrate, phosphate, carbonate, and combinations thereof. The particles can be formulated for enteral or parenteral administration by incorporating the particles into a pharmaceutically carrier. The compositions can further contain one or more active agents useful for bone diseases or disorders, such as vitamin D, growth factors, and combinations thereof. The compositions can be used to treat or prevent one or more bone diseases or disorders of the bone, such as osteoporosis. Alternatively, the particles can be coated onto a substrate, such as the surface of an implant. The coatings can be used to improved biocompatibility of the implant, prevent loosening of the implant, reducing leaching of metal ions from metallic implants, and reduce corrosion. The coatings can be applied to the substrate using a variety of techniques well known in the art. In one embodiment, the coating is applied using electrophoretic deposition. The use of nano- and/or microparticles that provide high surface area helps to improve interfacial strength between the coating and the implant, which allows for the use of lower sintering temperatures. Lowering sintering temperatures minimizes or prevents thermal decomposition of the coating material and/or degradation of the implant material.

The present invention is a bioactive endodontic material and its use for filling the tooth and bone cavities. The present invention, by using calcium salt, calcium oxide, calcium silicate, and calcium phosphate compounds as essential constituents, and mixing them with a water base solution, prepares a bioactive calcium and phosphate enriched material. The enriched material (cement) comprises high concentration of water-soluble calcium and phosphate, and immediately forms hydroxyapatite during and after setting. The cement is biocompatible, antibacterial, capable to form an effective seal against reentrance of microorganisms into the filled cavity, compatible to handle and set in an aqueous environment, and able to stimulate hard tissue healing.

Dairy or non-diary based fortified carbonated beverage solutions that supply essential nutrients in the human diet. The solution contains per 354 ml, calcium, magnesium and potassium ions in the form of salts and optionally vitamins A, D, C, lutein, zeaxanthin and folic acid in specified amounts to provide dietary supplementation. Sweeteners, stabilizers, flavors and carbonation can also be added to enhance flavor, taste, mouth-feel, ingredient solubilization and product appearance. A method of making the beverages is also described. A method of using carbonation to reduce bacterial counts and reduce degradation of essential nutrients in milk-based beverages with or without pasteurization is also disclosed.

Calcium amino acid chelate complexes for fortification of dairy products and oleaginous foods, dairy products and oleaginous foods fortified with calcium amino acid chelate complexes, and methods of preparing calcium amino acid chelate complexes are disclosed and described. The calcium amino acid chelate complexes of the present invention are stable, palatable, and bioavailable. Preparation steps include reacting a calcium compound, an amino acid ligand, a pH adjuster, and, optionally, a stabilizing/suspending agent in an aqueous environment.

A process for preparing the bioactive porous structure on the surface of Ti explant for tooth includes such steps as blasting sand, double acid treating, treating with H2O2 and heat treating. Its surficial TiO2 layer can induce the crystallization of hydroxy apatite, and has high compatibility to bone tissue and high successful rate.

The invention discloses a composition used in a scale-inhibition corrosion inhibitor, a scale-inhibition corrosion inhibitor, and an application thereof. The composition used in the scale-inhibition corrosion inhibitor comprises cyclodextrin and/or a cyclodextrin derivative, a carboxylic-acid-group-containing homopolymer, a sulfonic-acid-group-containing copolymer, and selectively hydroxycarboxylic acid with a weight ratio of 1:0.2-20:0.04-15:0.2-30:0-20. The scale-inhibition corrosion inhibitor provided by the invention is environment-friendly. According to the invention, the application of phosphorus-containing compound or non-renewable molybdate or tungstate is prevented, such that the scale-inhibition corrosion inhibitor is phosphorus-free and nitrogen-free. The scale-inhibition corrosion inhibitor has high tolerance to calcium and alkali, resistance to corrosion of high-concentration chloride ion and sulfate ion, and wide applicability to water quality. Therefore, technical condition is provided for operation of circulation water under high concentration multiple and for reducing sewage discharge. The scale-inhibition corrosion inhibitor provided by the invention has excellent scale inhibition and corrosion inhibition performances in circulation water system application. With the scale-inhibition corrosion inhibitor, a dose is low, scale-inhibition treatment process is simple and substantial effect is provided. The scale-inhibition corrosion inhibitor is suitable for popularization.

The invention discloses small molecule polypeptide Ca-chelate of fishbone, which belongs to the field of functional food or additive. The method for preparing the small molecule polypeptide Ca-chelate of the fishbone comprises the following steps: boiling the fishbone at high temperature and high pressure; pulping to obtain the fishbone paste; utilizing the compound protease to execute enzymolysis; centrifuging to obtain the liquid supernatant and the sediment; filtering the liquid supernatant to obtain the small molecule polypeptide liquid of the fishbone; executing the composite acid acidification through citric acid and lactic acid for the sediment so as to obtain the fishbone calcium liquid; mixing the small molecule polypeptide liquid of the fishbone with the fishbone calcium liquid; executing the chelation at 40-50 degrees centigrade while the pH value is 7.5-8.5; and drying to obtain the small molecule polypeptide Ca-chelate of the fishbone. The invention has high Ca-chelate rate which reaches over 90%, and has high biological absorption rate of the calcium which reaches over 70%. The invention has no side effects, has good flavor, can be directly absorbed from intestinal mucosa after being eaten, solves the problems that the solubility of the traditional calcium source is bad, the absorption rate is low and the side effect is large, and solves the problem of producing calculi. In addition, the invention has a simple preparation method and low cost.

Process, apparatus and composition for calcium fortification of beverages are provided. The methods comprise continuously blending in water a calcium source, preferably calcium hydroxide, and an acid source for a time sufficient to produce soluble calcium salts, but with minimal precipitation. The acid source is preferably citric acid. The calcium salt solution remains in an in-line retaining reaction hold tube for the necessary period to produce calcium salt in solution without significant precipitation, and is then continuously and immediately added to a non-dairy beverage, such as orange juice, to calcium fortify the beverage. The pH of the calcium salt solution can be monitored to optimize the amount of soluble salt and minimize the amount of precipitate.

The invention discloses a formula milk powder for promoting the absorption of fatty acid and calcium and a preparation method thereof. Raw cow milk, lactose, 1,3-Dioleoyl 2-palmitoyl triglyceride and demineralized whey powder as main materials are added with concentrated whey albumen powder, Alpha-lactalbumin powder, oligosaccharide, walnut oil, casein phosphopeptide, docosahexaenoic acid, arachidonic acid, nucleotide, lutein, inositol, carnitine and the like as well as vitamins, mineral substances and other nutrients needed for strengthening infants, and fat humanization, protein humanization and carbohydrate humanization are realized. The powdery product is produced by the processes of blending, homogenization, concentration, spray-drying, packaging and the like. According to the physiological characteristics and nutritional demand of the infants, the invention reinforces the calcium, the 1,3-Dioleoyl 2-palmitoyl triglyceride, other nutrient ingredients and the like, and aiming at the oversea clinical test conclusion of the 1,3-Dioleoyl 2-palmitoyl triglyceride, the final test conclusion of comparison with breast milk and infant formula milk powder sold on the market in the process of a clinical feeding test is that the feeding result of the designed formula approximates the feeding result of the breast milk and is better than the feeding result of an infant formula milk powder group sold on the market.

The invention discloses a method for recovering cobalt and lithium from waste lithium cobaltite and preparing lithium cobaltite. The method comprises the following steps: (1) leaching out the cobalt and lithium in the waste lithium cobaltite by using acid and a reducing agent, so as to obtain lixivium; (2) removing copper, iron, aluminum, calcium and magnesium in the lixivium by using a chemical method; (3) precipitating the cobalt and lithium in a solution without impurities with carbonate; (4) drying the cobalt lithium carbonate, and blending corresponding cobalt salt and/or lithium salt according to cobalt-lithium ratio; and (5) calcining so as to obtain lithium cobaltite product. The lithium cobaltite obtained by the method is good in property, cobalt and lithium recoveries are above 99% and above 96% respectively. The method has the advantages of simple process, low cost and high economic benefits, and is easy to carry out industrial production.

An overbased calcium sulfonate grease composition comprising a reduced amount of overbased calcium sulfonate, calcium hydroxyapatite, base oil, one or more converting agents, and one or more complexing acids if a complex grease is desired. The calcium sulfonate grease composition improves thickener yield and expected high temperature utility as demonstrated by dropping point. A method of making the composition comprising the steps of mixing the calcium sulfonate and base oil, adding the calcium carbonate either before or after conversion, adding one or more converting agents, and adding one or more complexing acids. All or a portion of one or more of the complexing acids may be added with or prior to the one or more converting agents.

The present invention relates to a nano silver calcium alginate antibacterial dressing. It is a product made up by using calcium alignate fibre on which the nano silve granules are adsorbed, the nano silver content is 0.01-1% of total weight of said dressing. Besides, said invention also provides its preparation method and concrete steps.

A method of manufacturing an overbased calcium sulfonate grease comprising a reduced amount of overbased calcium sulfonate, water and at least one non-aqueous converting agent, where at least a portion of the non-aqueous converting agent is added after one or more delay periods relative to the addition of the water. A delay period may involve the period of time it takes to adjust the temperature of the mixture, a period of time during which the mixture is held at a temperature or within a range of temperatures, and multiples and any combination thereof. These calcium sulfonate greases have improved thickener yield and high dropping points compared to greases of substantially similar composition made without a delay between the additions of water and a non-aqueous converting agent, particularly when a poor quality overbased calcium sulfonate is used.