14 results about "Cetylpyridinium" patented technology

The invention discloses a reagent combination, an analyzer and a detection method for detecting beryllium element content in a water sample. The reagent combination is composed of a color developing agent, a masking agent, a buffer solution and a catalytic solution. The color developing agent comprises chrome cyanine R; the masking agent comprises EDTA (Ethylene Diamine Tetraacetic Acid), ascorbic acid, tartaric acid and ethylene glycol amine; the buffer solution comprises ammonium acetate and hydrochloric acid; the catalytic liquid comprises hexadecylpyridinium chloride. Compared with a standard method, the adopted reagents have the advantages that the reaction steps are simplified, the stability of the reagents is better, the shelf life is longer, the reagents such as ammonia water and hexamethylenetetramine used in the standard method not only have pungent smell and larger environmental pollution, but also are easy to volatilize and deteriorate, and are not beneficial to long-term storage, so that the long-term measurement result is deviated, and the accuracy of the detection result is improved. Reagents used in the method do not have the defects, and can be stored for a long time at normal temperature, so that the method can be suitable for unattended automatic instruments and automatic water quality monitoring stations.

The present invention relates to a solid composition in the form of powder or granulate comprising a salt of chlorhexidine selected from chlorhexidine digluconate and chlorhexidine diacetate or a mixture thereof, and cetylpyridinium chloride for use in the prevention and / or treatment of oral infectious pathologies.

For minoxidil in a minoxidil-containing formulation to be efficiently absorbed through the scalp, it is important that the formulation blends well with and spreads across the surface of the scalp. In other words, the object of the present invention is to provide a minoxidil-containing topical pharmaceutical composition that blends well with the skin. [Solution] (a) 5-15 w / v% minoxidil, (b) at least one selected from the group consisting of cetylpyridinium and its salts, and benzethonium and its salts, and (c) 8-30 w / v% water, (d) lower alcohol, and (e) 10-30 w / v% polyhydric alcohol. A topical pharmaceutical composition characterized in that the polyhydric alcohol is at least one selected from the group consisting of 1,3-butylene glycol, dipropylene glycol, propylene glycol, glycerin, and polyethylene glycol.

A composition, in particular for the prophylaxis and / or treatment of caries, gingivitis, halitosis and / or arteriosclerosis, comprises N-cetylpyridinium chloride, at least one flavonoid, at least one polymer, in particular a homopolymer comprising at least one monomer having a polar functional group, in particular polylysine, and optionally chlorhexidine, wherein the weight ratio of chlorhexidine to N-cetylpyridinium chloride is between 0 and 7, in particular between 0.01 and 6, especially between 0.1 and 5, more especially between 0.2 and 4, for example between 0.4 and 3.2.

The present application relates to novel antibacterial mouthwash compositions comprising hyaluronic acid, cetylpyridinium chloride # imgabs0 # and taurine salt surfactants having unexpected stability, and their use in the treatment of plaque, gingivitis, halitosis, implant infections, tooth decay, inflammation and tooth coloration, and in favor of moisturizing and protecting teeth and gums.

A composition having a porous amorphous framework containing silica and one or more metal oxide, in particular zirconia or titania or alumina. The pores of the framework are templated on micelles of one or more ionic or non-ionic surfactants. The framework may be templated by using an antimicrobial amphiphilic active agent such as octenidine or cetylpyridinium which will thereby be loaded in the pores of the porous framework. The framework may form a whole particle or a shell onto a particle. A composite material may be formed by dispersing the particles comprising the composition in a matrix material, such as a dental composite or restorative resin. A method of making the composition by way of a sol-gel technique which includes mixing an acid, water and one or more oxide precursors is also disclosed; the acid is preferably an organic and / or chelating acid such as acetic acid.

The invention provides a high-strength, high-temperature-resistant and ultraviolet-resistant composite membrane with a mussel-like structure and a preparation method thereof. Basalt flakes are used as raw materials, and hydrochloric acid is used for preliminary surface etching. Then, strontium ions, tetrabutylammonium ions and cetylpyridinium ions are used for exchange with magnesium ions between basalt flakes to form a multi-layer structure of the basalt flakes. Then, ball milling is used to realize liquid-phase peeling of the basalt flakes, and finally basalt nanosheets are formed by shedding. After basalt nanosheets are doped into aramid nanofibers, vacuum self-assembly and filtration are performed to form a membrane to obtain a high-strength, high-temperature-resistant and ultraviolet-resistant composite membrane with a mussel-like structure. The invention adopts a simple, effective and easy-to-operate preparation method to prepare the high-strength / high-temperature-resistant / ultraviolet-resistant composite membrane with a mussel-like structure. The raw materials are low-cost, no large-scale equipment is required, and industrialization is relatively easy to achieve, thereby improving the possibility of industrialized mass production.

The present invention relates to a pharmaceutical composition for preventing, alleviating, or treating synucleinopathy, comprising rifapentin, amphotericin B, cetylpyridinium, domifene, or tocofersolan as an active ingredient. The rifapentin, amphotericin B, cetylpyridinium, domifene, tocofersolan, or a pharmaceutically acceptable salt thereof of the present invention inhibits the fibrillation and oligomerization of alpha-synuclein, and thus can be effectively used in the treatment of synucleinopathy.

The invention discloses a method for liquid-phase stripping of a MoSe2 nanosheet based on a pyridine ionic liquid aqueous solution, which comprises the following steps: placing a blocky material MoSe2 in the pyridine ionic liquid aqueous solution to carry out probe ultrasonic liquid-phase stripping, and carrying out centrifugal washing and drying treatment on dispersion liquid to obtain the MoSe2 nanosheet. Wherein the pyridine ionic liquid is 1-dodecyl pyridine isonicotinic acid [C12py] [C6H5NO2], 1-tetradecyl pyridine isonicotinic acid [C14py] [C6H5NO2] or 1-hexadecyl pyridine isonicotinic acid [C16py] [C6H5NO2]. The invention also discloses a preparation method of the pyridine ionic liquid. According to the method, the operation process is simple, the few-layer MoSe2 nanosheets can be efficiently prepared on a large scale at low cost, the yield of the MoSe2 nanosheets subjected to liquid phase stripping under the optimal condition reaches 37%, and the proportion of the nanosheets with the thickness smaller than 2 nm reaches 80%.

The invention discloses a bimetallic AuPd alloy porous material and a preparation method and application thereof.The preparation method comprises the steps that a sodium tetrachloropalladate aqueous solution, a chloroauric acid aqueous solution, cetylpyridinium chloride and water are mixed to be uniform, an ascorbic acid aqueous solution is added under the stirring condition, the mixture is stirred to react till the color of liquid is changed into gray black from yellow transparent, centrifugation is conducted, and a product is obtained; the preparation method comprises the following steps: adding an aqueous solution into a reaction kettle, stirring to obtain a colloidal product, washing the colloidal product to obtain a first precipitate, uniformly mixing the first precipitate with a solvent to obtain a first solution, dripping the first solution onto an electrode, soaking the electrode into a 1H, 1H, 2H, 2H-perfluorooctyltrimethoxysilane ethanol solution, and drying to obtain the bimetallic AuPd alloy porous material. The bimetallic AuPd alloy porous material is applied to nitrogen reduction synthesis of ammonia, the ammonia yield is up to 43.67 [mu] g.h <-1 >. Cm <-2 >, and the Faraday efficiency is up to 43.83%. The bimetallic AuPd alloy porous material is synthesized through a wet reduction method, the ammonia yield is high through the synergistic effect of Au and Pd bimetals, and the bimetallic AuPd alloy porous material can be widely applied to the field of electrocatalytic synthesis of ammonia.

This invention relates to the field of biomedical materials technology, and discloses a cerium-doped mesoporous bioactive glass and its preparation method. The cerium-doped mesoporous bioactive glass comprises a SiO₂-CaO-P₂O₅ glass network and cerium element doped in the glass network; the cerium-doped mesoporous bioactive glass has an amorphous mesoporous structure. This cerium-doped mesoporous bioactive glass is prepared by employing a sol-gel method combined with a water-in-oil self-assembly strategy. Using hexadecylpyridine bromide as a template agent, urea as a slow-release alkali source, and triethanolamine as a reaction regulator, a stable emulsion is constructed in an aqueous system, followed by the sequential introduction of silicon, phosphorus, calcium, and cerium sources. This successfully achieves in-situ uniform doping of cerium element in the mesoporous bioactive glass network framework. Furthermore, this method requires no subsequent modification steps, and a multifunctional material with an amorphous mesoporous structure, Ce³⁺ / Ce⁴⁺ mixed valence state, and controllable CeO₂ nanocrystal distribution can be obtained in one step.

The application belongs to the technical field of hydrogenation catalysis nanomaterials, and particularly relates to a preparation method of a carbon-nitrogen layer modified platinum / alumina composite hydrogenation catalyst. The application uniformly mixes a chloroplatinic acid aqueous solution, camphor sulfonic acid and chlorohexadecylpyridine, reduces Pt ions into superfine Pt nanoparticles by ultraviolet lamp irradiation, then uniformly disperses alumina beads, and obtains the carbon-nitrogen layer modified Pt / Al2O3 composite hydrogenation catalyst by high-temperature calcination. The catalyst has good catalytic hydrogenation performance and stability. The preparation method provided by the application is simple and easy to operate.

The invention discloses a polishing electrolyte for a connecting rod and a preparation method thereof, and belongs to the technical field of metal surface treatment. The polishing electrolyte for the connecting rod comprises the following components: phosphoric acid, sulfuric acid and a composite additive, wherein the composite additive comprises sodium polyphosphate, a compound corrosion inhibitor, TiO2 particles and polyethylene glycol in a mass ratio of 1: (4-6): (1-2): (1-2); the compound corrosion inhibitor comprises thiourea, cetylpyridinium bromide and sodium dodecyl sulfate according to the mass ratio of 1: (1.5-2): (1.5-2). The polishing electrolyte provided by the invention has excellent polishing effect and stability, and the connecting rod subjected to electrolytic polishing treatment by adopting the polishing electrolyte provided by the invention has the characteristics of excellent corrosion resistance, smooth surface, bright color and the like.