Abstract: Provided are an enzyme immobilization carrier and a preparation method therefor, an immobilized enzyme and a preparation method therefor, and use thereof. The enzyme immobilization carrier comprises a resin matrix and a divinyl sulfone group modified on the resin matrix by means of a covalent bond. In order to realize the directed immobilization of an enzyme, the divinyl sulfone group is loaded on the resin matrix by means of the covalent bond. In a subsequent enzyme immobilization reaction, by using specific binding of the divinyl sulfone group to a histidine tag, the divinyl sulfone group in the enzyme immobilization carrier is connected to a specific amino acid residue in an enzyme molecule by means of a covalent bond, without reacting with an active group in the enzyme molecule, thereby effectively avoiding excessive influence of the enzyme immobilization carrier on enzyme conformation, and thus retaining a high catalytic activity of the enzyme.

Abstract: An immobilized 4,5-dicyanoimidazole, and a preparation method and application thereof. The immobilized 4,5-dicyanoimidazole is obtained through a free radical copolymerization reaction of a first comonomer, a second comonomer, and a third comonomer. The first comonomer is divinyl benzene or ethylene glycol dimethacrylate. The second comonomer is styrene or methyl methacrylate.

Abstract: The present disclosure relates to stabilized oral care compositions comprising amino acids and traditionally incompatible flavor components. Methods of making and use are further provided.

Abstract: A coated packaging article may include a packaging article and a coating. The packaging article may include a body having an interior surface, and the coating may be disposed over at least one portion of the interior surface of the body. The coating may include an edible oil and a surfactant. The coating may be in a liquid state on the interior surface inside the packaging article. The coating may be in direct contact with the at least one portion of the interior surface of the body.

Abstract: A stabilized oral care composition comprises amino acids and traditionally incompatible flavor components. Methods of making and use are further provided.

Abstract: Provided are an enzyme immobilization carrier and a preparation method therefor, and an immobilized enzyme and a preparation method therefor. The enzyme immobilization carrier includes a resin ball matrix, an —N(CH2OOH)2 group linked on the resin ball matrix by means of a chemical bond, and a metal ion adsorbed on the —N(CH2OOH)2 group in a chelating manner through coordination. The resin ball matrix is an amino-type methacrylic resin and/or an epoxy-type methacrylic resin, and the resin ball matrix has a particle size of 200-700 ?m. Therefore, the problems in the related art that an enzyme immobilization carrier is relatively poor in enzyme compatibility and poor in immobilization effect, and an immobilized enzyme is relatively poor in activity, and relatively poor in stability during repeated use are solved.

Abstract: Provided are a catalyst loaded with a TEMPO-type compound, and a preparation method and use thereof. The catalyst loaded with the TEMPO-type compound uses a polymer resin as a carrier, and the polymer resin is a polystyrene resin containing a chloromethyl or bromomethyl, herein the content of the chloromethyl or bromomethyl in the polymer resin is 0.5-5.0 mmol g?1.

Abstract: The present invention relates to a flow control method for a high-accuracy and high-stiffness hydrostatic device, comprising: a main body and an auxiliary body; the upper surface of the main body forms a first flow channel, and a lug boss is formed on the first flow channel; the upper surface of the main body forms a second flow channel; the middle of the main body is concave down to form a pressure stabilizing cavity; the end of the first flow channel is provided with first throttling holes; the second flow channel is provided with a main oil hole; the first flow channel is provided with an oil distribution channel; the lug boss is provided with a second throttling hole; a bump matched with a bearing platform is formed on the bottom of the auxiliary body; a film sheet is arranged between the bump and the bearing platform; and the surface of the bump is provided with a groove.

Abstract: Provided are an immobilized enzyme and an application thereof in continuous production. The immobilized enzyme is a Polyethyleneimine (PEI)-modified immobilized enzyme, and includes: an enzyme, which includes Amine Dehydrogenase (AmDH) and/or Formate Dehydrogenase (FDH); and a carrier, which is a cyanuric chloride-activated amino carrier. The problem in the prior art of poor performance of an immobilized enzyme is solved, the catalytic activity and reusability of the immobilized enzyme are improved, and the immobilized enzyme is suitable for the field of enzyme immobilization.

Abstract: Described herein are—inter alia—complexes comprising a curcuminoid; and an anionic surfactant. Methods of making and using same are also described.

Abstract: The present disclosure provides a chlorhexidine-cyclamate complex having a formula [C22H32Cl2N10][C6H12NO3S]2 having antibacterial and antiplaque properties, together with oral care compositions comprising the complex, and methods of making and using these complexes and compositions.

Abstract: The present invention relates to a flow control method for a high-accuracy and high-stiffness hydrostatic device, comprising: a main body and an auxiliary body; the upper surface of the main body forms a first flow channel, and a lug boss is formed on the first flow channel; the upper surface of the main body forms a second flow channel; the middle of the main body is concave down to form a pressure stabilizing cavity; the end of the first flow channel is provided with first throttling holes; the second flow channel is provided with a main oil hole; the first flow channel is provided with an oil distribution channel; the lug boss is provided with a second throttling hole; a bump matched with a bearing platform is formed on the bottom of the auxiliary body; a film sheet is arranged between the bump and the bearing platform; and the surface of the bump is provided with a groove.

Abstract: An oral care composition having a soluble zinc polyphosphate complex made by combining ingredients including an inorganic zinc salt, and a plurality of long chain polyphosphates having 6 or more phosphate polymer units, the relative amount of inorganic zinc salt and long chain polyphosphates providing a phosphorus to zinc mole ratio of at least 6:1. Further provided is a method of treating a subject suffering from dentinal sensitivity applying the oral care composition to the teeth and gums of the subject.

Abstract: A soluble zinc polyphosphate complex made by combining ingredients which include an inorganic zinc salt and a plurality of long chain polyphosphates having 6 or more phosphate polymer units, the relative amount of inorganic zinc salt and long chain polyphosphates providing a phosphorus to zinc mole ratio of at least 6:1. Further provided is a method of making this soluble zinc polyphosphate.

Abstract: A bottle with a retractable straw comprises a bottle body, a bottle cap and a straw. The bottle cap comprises a bottom cap, a rotating sleeve and a top cap. The bottom cap covers a mouth of the bottle body and is provided with a first sleeve tube. A spiral slideway is arranged on an inner wall of the first sleeve tube. The rotating sleeve is arranged on an upper surface of the bottom cap. A second sleeve tube is arranged on the rotating sleeve. A vertical sliding groove is formed in a tube wall of the second sleeve tube. Limiting grooves in opposite directions are formed in upper and lower ends of the sliding groove and connected with the sliding groove.

Abstract: A coated packaging article may include a packaging article and a coating. The packaging article may include a body having an interior surface, and the coating may be disposed over at least one portion of the interior surface of the body. The coating may include an edible oil and a surfactant. The coating may be in a liquid state on the interior surface inside the packaging article. The coating may be in direct contact with the at least one portion of the interior surface of the body.

Abstract: This application relates to a novel chlorhexidine lauryl sulfate salt, which provides enhanced chlorhexidine stability and enhanced anti-bacterial activity, and to formulations and methods utilizing the novel salt.

Abstract: Described herein are zirconium oxychloride clusters comprising zirconium oxychloride and a basic amino acid. Oral care compositions comprising the same; and methods of making and using the same are also described.

Abstract: Provided is an amination method for a polystyrene-type resin, and a method for immobilizing an enzyme using an aminated polystyrene-type resin. The amination method includes: in a solvent, a catalyst is used to catalyze a polystyrene-type resin and an enamine salt to perform a Friedel-Crafts alkylation reaction, to obtain an aminated polystyrene-type resin, herein the catalyst is a Lewis acid catalyst. By means of the Friedel-Crafts alkylation reaction, the enamine salt is grafted onto the polystyrene-type resin, and the polystyrene-type resin is aminated. The conditions of the Friedel-Crafts alkylation reaction are easy to control, the post-treatment process is simple, and it is only necessary to remove the catalyst and the unreacted enamine salt by washing. Therefore, the above amination method in the present application has few steps and is simple and easy to implement. Meanwhile, the amination method further avoids the use of a noble metal catalyst, thereby reducing production cost.

Abstract: A soluble zinc polyphosphate complex made by combining ingredients which include an inorganic zinc salt and a plurality of long chain polyphosphates having 6 or more phosphate polymer units, the relative amount of inorganic zinc salt and long chain polyphosphates providing a phosphorus to zinc mole ratio of at least 6:1. Further provided is a method of making this soluble zinc polyphosphate.