37 results about "Stannous ion" patented technology

The invention discloses a preparation method of a polymer carbon nitride / tin sulfide (PCN (at) SnS2) heterojunction photoanode, which comprises the following steps of: constructing the PCN (at) SnS2 heterojunction photoanode in situ on a conductive substrate (FTO) by combining an electrochemical deposition method and a chemical vapor deposition method, adding anhydrous stannous chloride into ethanol for dissolving, spin-coating stannous ions on the surface of the conductive substrate, and oxidizing in an air atmosphere; the preparation method comprises the following steps: adding stannous sulfate and sodium citrate into deionized water, and stirring for dissolving; the prepared conductive substrate is used as a working electrode, and a tin film is deposited on the surface of the conductive substrate by adopting a three-electrode system; dicyandiamide, cyanuric acid and potassium thiocyanate are ground and mixed evenly and then put into a porcelain boat, and the conductive substrate deposited with the tin film is placed on the surface of the precursor and wrapped with aluminum foil; placing the porcelain boat in a tubular furnace, reacting in a nitrogen atmosphere, and cooling to room temperature to form PCN-coated SnS2 on the surface of the FTO. The method improves the problems of insufficient light absorption range and high electron-hole recombination rate of the polymer carbon nitride material, and has the advantages of simplicity, controllability and the like.

Disclosed are oral care compositions comprising: a tooth ligand mixture comprising a monocarboxylic acid, a dicarboxylic acid, and / or a tetracarboxylic acid; and a stannous ion source and a fluoride ion source, such as stannous fluoride. The oral care compositions show the ability to prevent and / or treat dental erosion and / or dental caries.

An oral care composition is provided and includes a natural flavor extract, a sulfur source such as dimethyl disulfide, a stannous ion source, and a soluble metal ion source that prevents the formation of methyl mercaptan. The natural flavor extract may contain dimethyl disulfide as an impurity. The soluble metal ion source may include a metal salt, a metal oxide, or a combination thereof, and the soluble metal ion source may include a copper ion source, a silver ion source, a zinc ion source, or combinations thereof.

The application discloses a kind of doped 3-trifluoromethylpyridine's tin-containing perovskite solar cell and preparation method thereof, preparation process includes: cleaning transparent conductive substrate is pretreated, deposition hole transport layer and carry out annealing treatment, 3-TFMP is added to tin-containing perovskite precursor solution and is stirred uniformly, and is deposited on the surface of hole transport layer, tin-containing perovskite active layer is obtained by annealing treatment, continue to deposit electron transport layer, hole blocking layer and top electrode in sequence, obtain tin-containing perovskite solar cell based on 3-TFMP doped perovskite after.The additive molecule containing strong electron-withdrawing functional group trifluoromethyl of the application can interact with SnI2 coordination in perovskite precursor to form complex (i.e. tin adduct), improve the redox potential of tin adduct, reduce highest occupied molecular orbital (HOMO) energy level, to inhibit stannous ion (Sn 2+ ) oxidation, improve the photoelectric conversion efficiency and stability of perovskite solar cell.

Disclosed herein are oral care compositions, in particular oral care compositions having enhanced stability of stannous ions. According to at least one aspect, there is provided an oral care composition comprising: a source of stannous ions; and crosslinked polyacrylic acid and / or salts thereof, wherein the weight ratio of the source of stannous ions to the crosslinked polyacrylic acid and / or salts thereof of the personal care composition is from about 4: 1 to about 1 :4.

This invention discloses a method for preparing tin dioxide hydrated colloidal precursors via dual-anode synchronous electrolysis, belonging to the field of electrochemical preparation technology of inorganic functional materials. The method includes the following steps: a) preparing an electrolyte containing 0.01 M hydrochloric acid and adjusting the initial pH value; b) using a high-purity tin plate as anode 1 and a titanium-based size-stabilized electrode as anode 2; using the titanium-based size-stabilized electrode as a common cathode; c) applying a DC voltage for constant-voltage synchronous electrolysis; anode 1 dissolves to generate stannous ions, anode 2 electrolyzes chloride ions to generate hypochlorous acid, and the hypochlorous acid instantly oxidizes the stannous ions to tetravalent tin ions in the bulk solution far from the cathode, forming a translucent tin dioxide hydrated colloidal precursor in situ in an acidic medium; d) drying the resulting colloid under reduced pressure and then calcining it at 200–250℃ to obtain high-purity nano-tin dioxide. This invention achieves integrated "dissolution-oxidation-gelation" through dual-anode synergy, avoiding the loss of hypochlorous acid during cathode reduction.

Disclosed herein are oral care compositions comprising docosahexaenoic acid (DHA) and at least one of (i) a stannous ion source, such as stannous fluoride, or (ii) tetradecyl aminobutyroylvalylaminobutyric urea trifluoroacetate, optionally further comprising arginine or a salt thereof, and methods of using the oral care compositions to treat inflammation in the oral cavity.

A stable stannous ion emulsion complex formed from combining a first aqueous phase with an oil phase to form a water in oil emulsion; forming a second aqueous phase; and combining the second aqueous phase with the water in oil emulsion. The first aqueous phase including water, stannous ions, a chelating agent, and a pH buffer. The oil phase including an oil and a first emulsifier. The water in oil emulsion including equal amounts of the oil phase and the first aqueous phase. The second aqueous phase including water, stannous ions, a chelating agent, a pH buffer, and a second emulsifier.

An oral care composition comprising a source of stannous ions and a surfactant combination of taurine salt and an amphoteric surfactant (e.g., betaine) effective to treat dental plaque biofilms and neutralize bacterial toxins while providing an improved sensory experience.

The present application discloses an anhydrous oral care composition comprising: (i) from about 0.01% to about 5% by weight of a strongly swellable, lightly to moderately crosslinked polyvinylpyrrolidone; (ii) about 10 wt% to about 60 wt% sodium bicarbonate; (iii) from about 0.01% to about 5% by weight of at least one source of fluoride ions; (iv) from about 0.01% to about 5% by weight of at least one source of stannous ions; and (v) from about 0.01% to about 75% by weight of at least one oral care ingredient.

The present invention relates to improved phosphopeptide stabilised amorphous calcium phosphate and / or amorphous calcium fluoride phosphate complexes and compositions containing those complexes. Methods of making the complexes of the invention and of treating or preventing oral conditions are also provided. In one aspect, the present invention provides a composition comprising equal to or greater than about 8% w / v stannous associated phosphopeptide (PP) stabilized amorphous calcium phosphate (ACP) or amorphous calcium fluoride phosphate (ACFP) complexes wherein the complexes have a stannous ion content of equal to, or greater than, 1 mole of stannous per mole of PP but less than 4 moles of stannous per mole of PP.

An oral care composition comprising a source of stannous ions, a taurine salt surfactant, and a source of soluble or partially soluble zinc ions effective to treat dental plaque biofilms and neutralize bacterial toxins while providing an improved sensory experience.

The present invention relates to improved complexes of amorphous calcium phosphate and / or amorphous calcium fluoride phosphate stabilised by phosphopeptides / phosphoproteins by addition of stannous ions. These complexes have anticariogenic properties useful to protect tooth structures as they remineralize (repair) early stages of dental caries and have other dental / medical applications (including anti-calculus, anti-erosion / corrosion and anti-dentinal hypersensitivity). Methods of making the complexes of the invention and of treatment or prevention of various dental conditions including dental caries, dental calculus, dental erosion / corrosion and dental hypersensitivity are also provided.

This invention discloses a conductive dendritic composite gel, its preparation method, and its applications. The invention uses a hydrogel as a matrix, leveraging the hydrophilicity of the hydrogel framework to attract tin ions. Furthermore, by in-situ deposition of metal dendrites within the gel, a highly efficient conductive pathway is constructed. The conductive dendritic composite gel of this invention achieves simultaneous improvement in both mechanical and electrical properties. In addition, the sensor prepared based on this conductive dendritic composite gel exhibits high sensitivity and a wide detection range, effectively monitoring and identifying changes in limbs, demonstrating broad application potential in the field of wearable devices.

An oral care composition is disclosed, comprising: a dental ligand mixture comprising a monocarboxylic acid, a dicarboxylic acid, and / or a tetracarboxylic acid; and a stannous ion source and a fluoride ion source, such as stannous fluoride. The oral care composition exhibits the ability to prevent and / or treat tooth erosion and / or dental caries.

The present invention discloses a two-dimensional covalent organic framework material and a preparation method and application thereof. The preparation method comprises the following steps: placing 2,5-dimethoxybenzene-1,4-diformaldehyde, tetrakis(4-aminophenyl)ethylene, an acetic acid aqueous solution, and a first solution in an ampoule under inert gas protection, performing ultrasonication, and then refrigerating and cyclically pumping gas to prepare a two-dimensional organic framework material containing a Schiff base structure; the present invention adopts 2,5-dimethoxybenzene-1,4-diformaldehyde and tetrakis(4-aminophenyl)ethylene as precursors, introduces a simple imine bond structure into the covalent organic framework material, and compared with common small molecule fluorescent probes, the covalent organic framework material has a large specific surface area (353.13 m 2 / g), high sensitivity (228nM), and fast response time (50s); based on its superior recognition performance, it was applied to the detection of stannous ions in food cans, realizing the first application of covalent organic framework materials in the food field.

An oral care composition is provided and includes a hops extract, where the hops extract includes dimethyl disulfide, a stannous ion source, and a stabilizing system including a Michael acceptor. The Michael acceptor has an alpha, beta-unsaturated carbonyl group. The alpha, beta-unsaturated carbonyl group can include an aldehyde, a ketone, a cyclic ketone, or a combination thereof.

The invention belongs to the technical field of fluorescent probe materials and detection methods thereof, and discloses a fluorescent probe, a method for detecting stannous ions by the fluorescent probe and application of the fluorescent probe, the fluorescent probe for detecting the stannous ions is an organic compound containing an azide group, and the structural general formula of the fluorescent probe is R-N3; wherein R is a fluorophore emitting fluorescence based on an intramolecular charge transfer mechanism, and comprises any one of a coumarin fluorophore, a phthalimide fluorophore, a 1, 8-naphthalimide fluorophore, a dicyanoisophorone fluorophore and a rhodamine derivative fluorophore. The azide group on the stannous ion fluorescent probe disclosed by the invention is reduced into the amino group by utilizing the characteristic of strong reducibility of Sn < 2 + >, the Sn < 2 + > can be detected by optical / electrochemical / colorimetric / gas signal change, and the stannous ion fluorescent probe disclosed by the invention has the advantages of interference resistance, universality, high sensitivity, multi-mode detection and the like.

An oral care composition comprising high water oral care compositions comprising an orally acceptable carrier, zinc phosphate, a first stannous ion source (i.e., stannous fluoride), and a second stannous ion source (i.e., stannous chloride). Methods and uses for this composition are also described throughout.

Disclosed are oral care compositions comprising: a tooth ligand mixture comprising a monocarboxylic acid, a dicarboxylic acid, and / or a tetracarboxylic acid; and a stannous ion source and a fluoride ion source, such as stannous fluoride. The oral care compositions show the ability to prevent and / or treat dental erosion and / or dental caries.

Oral care compositions and, preferably, oral care compositions having enhanced stannous ion stability are disclosed herein. In accordance with an aspect of the invention, provided is an oral care composition comprising a stannous source; a nitrate source; a polymer system comprising a carbomer, a phosphate / acrylate copolymer, or a combination thereof; and about 10 wt.% or more of water, wherein the oral care composition has a reduction in stannous ions (Sn(II)) of about 45% or less after 2 weeks of being kept in an environmentally controlled room at a temperature of 60 °C, and wherein all weight percentages are based on the total weight of the oral care composition.

The application belongs to the technical field of electrochemical cells, and particularly relates to a water-based crown ether electrolyte capable of chelating stannous ions and a preparation and application thereof. The electrolyte comprises deionized water, acid, soluble stannous salt and crown ether with a specific internal cavity size. The application introduces crown ether as a functional additive in a conventional acidic stannous salt electrolyte, chelates stannous ions through the specific internal cavity size, the special chemical confinement effect can regulate the nucleation kinetics of stannous ions, induce uniform tin deposition, prevent the formation of large tin particles and "dead tin", and further improve the deposition / dissolution reversibility of the tin negative electrode. The double-deposition type tin-manganese full cell assembled by using the electrolyte has a high discharge platform of 1.68 V and a long cycle stability of more than 300 cycles. The preparation method of the electrolyte is simple, the H-type double-deposition type tin-manganese full cell has low requirements on equipment conditions, raw materials are abundant, the production cost is low, and the application has a large practical application prospect.

The application discloses a carbon nitride modified halloysite supported nanometal composite catalyst and a preparation method and application thereof, and relates to the technical field of nanometer catalyst preparation. The catalyst is prepared by the following steps: etching modification of halloysite nanotubes by means of a eutectic solvent, then forming a graphite phase carbon nitride nanometer thin layer on the surface of the modified halloysite by means of a gas phase deposition-pyrolysis method to obtain a carbon nitride modified halloysite composite; then, depositing Co2(OH)2CO3 precursors on the surface of the carbon nitride modified halloysite by means of a sol-gel method, supporting stannous ions by means of the electrostatic adsorption effect of the hydroxyl groups of the Co2(OH)2CO3 precursors, reducing Pt metal ion precursors into Pt nanoparticles by means of the strong reducing property of the stannous ions and realizing a good anchoring effect, and finally forming a stable CoO / Co-Pt / SnO2 composite by means of inert atmosphere calcination, so as to obtain the catalyst. The catalyst has high catalytic activity, selectivity and stability in a selective catalytic hydrogenation reaction, and thus has a good application prospect in the field of nanometer catalysis.

The invention belongs to the technical field of electrochemical batteries, and particularly relates to a water-based crown ether electrolyte capable of chelating stannous ions as well as preparation and application of the water-based crown ether electrolyte. The electrolyte includes deionized water, an acid, a soluble stannous salt, and a crown ether having a specific lumen size. Crown ether is introduced into a traditional acidic stannous salt electrolyte to serve as a functional additive, stannous ions are chelated through the specific inner cavity size of the crown ether, the nucleation kinetics of the stannous ions can be regulated and controlled through the special chemical confinement effect, uniform deposition of tin is induced, large tin particles and dead tin are prevented from being formed, and therefore the stannous salt electrolyte is prepared. And the deposition / dissolution reversibility of the tin negative electrode is further improved. The double deposition type tin-manganese total battery assembled by using the electrolyte has a 1.68 V high discharge platform and long cycle stability of more than 300 circles. The electrolyte provided by the invention is simple and convenient in preparation method, and the H-type double-deposition tin-manganese total battery has low requirements on equipment conditions, is rich in raw materials, is relatively low in production cost, and has a relatively great practical application prospect.

Oral care compositions comprising a stannous ion source, a taurate surfactant and substantially free of a zinc ion source, which are effective in treating dental plaque biofilm and neutralizing bacterial toxins, while providing an improved sensorial experience.

The present invention relates to improved complexes of amorphous calcium phosphate and / or amorphous calcium fluoride phosphate stabilised by phosphopeptides / phosphoproteins by addition of stannous ions. These complexes have anticariogenic properties useful to protect tooth structures as they remineralize (repair) early stages of dental caries and have other dental / medical applications (including anti-calculus, anti-erosion / corrosion and anti-dentinal hypersensitivity). Methods of making the complexes of the invention and of treatment or prevention of various dental conditions including dental caries, dental calculus, dental erosion / corrosion and dental hypersensitivity are also provided.

The invention discloses an electrotinning substrate and a production method of a high-resistance easily-formed low-titanium electrotinning plate. The electrotinning substrate comprises the following chemical components in percentage by weight: 0.001-0.025% of C, less than or equal to 0.030% of Si, 0.50-0.70% of Mn, 0.010-0.030% of Ti, less than or equal to 0.010% of P, less than or equal to 0.010% of S, less than or equal to 0.005% of N, 0.005-0.040% of Als, less than or equal to 0.06% of Cu, less than or equal to 0.04% of Ni, less than or equal to 0.06% of Cr and less than or equal to 0.05% of Mo. A plating solution in the electrotinning process adopts a PSA electrotinning insoluble anode electrotinning solution, and comprises stannous ions, PSA, EN, ENSA and sodium gluconate. The tinned substrate is not easy to deform and break during cold rolling and annealing; the produced electroplated tin plate is easy to form through cold machining; and the adhesive force of a coating after the produced electroplated tin plate is made into a can is less than or equal to grade 1.

Oral care compositions comprising a stannous ion source, a taurate surfactant and a soluble or partially soluble zinc ion source, which are effective in treating dental plaque biofilm and neutralizing bacterial toxins, while providing an improved sensorial experience.

Disclosed herein are oral care compositions comprising a stannous ion source and a red dye. According to one aspect, there is provided an oral care composition comprising: a stannous ion source; a nitrate ion source; a phosphate source; and a red dye consisting of Red 30.

Oral care compositions comprising a stannous ion source, a surfactant combination of taurate and amphoteric surfactant (e.g., betaines), which are effective in treating dental plaque biofilm and neutralizing bacterial toxins, while providing an improved sensorial experience.