59 results about "Triethyleneglycol dimethacrylate" patented technology

A process for producing an arginine-rich peptide mixture and the application thereof in cervical cancer therapy is provided. The process includes the following steps: A suspension of walnut meal and egg albumin is pretreated with ultrahigh pressure, and then digested by alkaline proteinase and papain in separated steps with the ultrasonic and microwave-assisted extraction. The peptides of interest are isolated from filtration supernatant obtained after the enzyme digestion by reversed phase high-performance liquid chromatography. By using the peptide mixture as a template, acrylic acid and methyl acrylic acid as functional monomers, triethylene glycol dimethacrylate as cross-linking agent, and isopropylthioxanthone in acetone as a photoinitiator, polymerization is induced by ultraviolet light to form a surface imprinted membrane for isolating and enriching the peptides of interest from the supernatant. The arginine content in the peptide mixture is more than 18%. The arginine-rich peptide mixture is able to strongly suppress the proliferation of human cervical cancer Hela cells. The approach is applicable to reduce the cost of production and speed up the commercialization of large-scale production.

A fluorescent pH transducer with internal reference consists of slide being processed by silanization, porphyrin derivative and benzo thiaanthracence derivative. The method for preparing fluorescent pH transducer with internal reference is also disclosed.

The invention relates to a preparation method of a hyperbranched hydrosiloxane supercritical carbon dioxide thickener. The method includes: in the presence of a catalyst, carrying out silicon-hydrogenreaction on triethylene glycol dimethacrylate and 1, 3, 5, 7-tetramethylcyclotetrasiloxane to generate a polymer. The hyperbranched hydrosiloxane polymer supercritical carbon dioxide thickener disclosed by the invention has good temperature resistance and pressure resistance, and can realize thickening performance under different temperature and pressure conditions, has good compatibility with various cosolvents, is non-toxic and safe to use, has small damage to the stratum, is small in dosage, and has good thickening effect.

The invention discloses a dental restoration technology new material for oral science and a preparing method thereof. The dental restoration technology new material is prepared from, by weight, 40-60 parts of triethylene glycol dimethacrylate, 30-50 parts of silicone resin, 3-6 parts of crystal whiskers, 5-8 parts of filler, 5-8 parts of abrasion resistant agent, 2-5 parts of mineral powder and 3-8 parts of steamed bone meal. The prepared dental restoration technology new material for the oral science is high in mechanical strength and anastomosis degree with teeth, even if the material is utilized for a long time, abutment tooth and mucosal tissue injuries cannot be not generated, no dental caries and periodontitis are caused, the material is high in plasticity, and the material is simple in preparing method and suitable for large-scale industrialized production.

The invention discloses a head-mounted high-definition anti-fog medical isolation mask which comprises a transparent protective cover, a cushion block and a fixing band. A high-definition anti-fog coating is arranged on the surface layer of the transparent protective cover, and the high-definition anti-fog coating is obtained by applying a high-definition anti-fog coating and then drying the high-definition anti-fog coating. The high-definition anti-fog coating comprises the following raw materials in parts by weight: 40-80 parts of a polyester acrylic monomer, 40- 80 parts of a polyurethane modified acrylic resin prepolymer, 20-70 parts of 2-acrylamide-2-methyl propane sulfonic acid, 5-30 parts of triethylene glycol dimethacrylate, 2-30 parts of inorganic oxide nanoparticles, 2-20 parts of a photoinitiator, 4-25 parts of a surface modifier, and 40-80 parts of a diluent. According to the head-mounted high-definition anti-fog medical isolation mask, pollutants such as droplets, blood, body fluid and secreta can be isolated for a wearer, and by arranging the high-definition anti-fog coating, the transparent protective cover has excellent anti-fog performance and high light transmittance.

A cell culture apparatus and a method for fabricating the cell culture apparatus are disclosed, the method comprises forming at least one fillister on a biomaterial composite layer by photolithography, wherein the biomaterial composite layer contains two gel materials. One is a bio-compatible hydrogel composition having various weight ratio of: 2-hydroxyethylmathacrylate (HEMA), bisphenolA and glycidyl methacrylate (bis-GMA), triethylene glycol dimethacrylate (TEGDMA), r-methacryloxypropyl trimethoxysilane (MAPTMS), α,α-diethoxyacetophenone (DEAP), and the other one is a photo-sensitive silica gel composition.

The invention relates to a hybrid peptide with a high arginine content and an application thereof in cervical cancer treatment. The preparation method comprises the following steps: using an ultrahighpressure to preprocess walnut meal and egg-white protein suspension; using alkaline protease and papain to enzymatically hydrolyze the preprocessing product in steps under the assistance of ultrasonic waves and microwaves; filtering the enzymatic hydrolysate, subjecting obtained supernate to reversed phase high performance liquid chromatography so as to separate target hybrid peptides in the supernate; taking the hybrid peptides as the template molecule, taking acrylic acid and methacrylic acid as the functional monomers, taking triethylene glycol dimethacrylate as the crosslinking agent, taking isopropyl thioxanthone as the initiator, and carrying out polymerization triggered by UV rays to form a surface molecularly imprinted membrane, which is used to separate and enrich target hybrid peptides in the supernate of the enzymatic hydrolysate. The arginine content of obtained hybrid peptide is more than 18%. The MTT method detection result show that the hybrid peptide with a high arginine content can effectively inhibit the proliferation of human cervical cancer Hela cell. The provided method reduces the product cost and the industrial production is promoted.

A cell culture apparatus and a method for fabricating the cell culture apparatus are disclosed, the method comprises forming at least one fillister on a biomaterial composite layer by photolithography, wherein the biomaterial composite layer contains two gel materials. One is a bio-compatible hydrogel composition having various weight ratio of: 2-hydroxyethylmathacrylate (HEMA), bisphenol A and glycidyl methacrylate (bis-GMA), triethylene glycol dimethacrylate (TEGDMA), r-methacryloxypropyl trimethoxysilane (MAPTMS), α,α-diethoxyacetophenone (DEAP), and the other one is a photo-sensitive silica gel composition.

The invention relates to preparation of a high-performance low-shrinkage hyperbranched polyamine-ester composite resin for dental repair. The high-performance low-shrinkage hyperbranched polyamine-ester composite resin for dental repair is prepared by mixing modified hyperbranched polyamine-ester with a general-purpose resin monomer, a photoinitiator and a silanized inorganic filler, wherein the modified hyperbranched polyamine-ester is obtained by reacting hyperbranched polyamine-ester with a modifier, the modifier is hydroxyethyl methylacrylate and 2, 4-toluene diisocyanate, and the general-purpose resin is bisphenol A-glycidyl dimethacrylate, carbamate dimethacrylate and triethylene glycol dimethacrylate. According to the invention, the prepared composite resin has excellent mechanical strength, bending strength, bending modulus and compression strength which are respectively 108.52 to 124.20 MPa, 8.6 to 9.37 GPa and 301.5 to 373.34 MPa; and the hyperbranched monomer containing double bonds and benzene rings and low in viscosity is prepared and added into a traditional organic matrix, so that the polymerization shrinkage rate of the composite resin material during curing is effectively reduced, and the polymerization shrinkage rate is 1.9-2.84%.

The invention discloses antibacterial monomer-containing repairing composite resin for dentistry and a preparation method thereof. The composite resin comprises 1-25% of bisphenol A-glycidyl methacrylate, 1-20% of carbamic acid ester dimethacrylate, 4-15% of triethylene glycol dimethacrylate, 1-10% of methylacryloyl oxygen dodecylpyridinium bromide, 55-80% of silicon dioxide, 0.5-1% of camphorquinone and 0.5-1% of N, N-dimethylamino ethyl methacrylate. The methylacryloyl oxygen dodecylpyridinium bromide in the composite resin is an antibacterial bonding monomer synthesized from antibacterial quaternary ammonium dodecylpyridine and polymerizable methylacryloyl groups and can be polymerized with other monomers, so that the composite resin has an antibacterial effect, and the bonding effect between the resin and teeth can be enhanced.

The invention relates to the field of adhesives, and discloses a water-based pressure-sensitive adhesive. The raw materials of the water-based pressure-sensitive adhesive include: resin, emulsifier and initiator; wherein, the resin includes UV monomer; the UV monomer is hexanediol diacrylate, trimethylol propane tripropionate or triethylene glycol Glycol dimethacrylate, wherein, the mass of hexanediol diacrylate is 3.5-8% of the total mass of the resin, the mass of trimethylolpropane tripropionate is 2-7% of the total mass of the resin, triethylene diacrylate The mass of alcohol dimethacrylate is 2.5%-6% of the total mass of the resin. The water-based pressure-sensitive adhesive has the characteristics of high peeling force and can be applied to polyvinyl chloride advertising stickers.

The invention discloses a ceramic lamp holder for an LED (Light Emitting Diode) lighting lamp. The ceramic lamp holder is prepared through grinding the following ingredients in parts and then carrying out firing: 180-200 parts of china clay, 20-25 parts of clay, 30-35 parts of clay ceramsite, 20-25 parts of pearlite, 50-60 parts of vermiculite, 15-20 parts of meerschaum, 10-15 parts of aluminum silicate, 5-6 parts of polyacrylamide, 6-8 parts of sodium methylsilicate, 8-10 parts of isooctyl triethoxysilane, 10-12 parts of rosin resin, 10-12 parts of petroleum resin, 8-10 parts of polyester resin, 3-5 parts of hydroxypropyl methylcellulose, 2-5 parts of dimethylacetamide, 3-5 parts of triglycol dimethacrylate, 3-5 parts of tetramethyl ammonium chloride, 3-5 parts of calcium chloride and 3-5 parts of zinc chloride. According to the ceramic lamp holder for the LED lighting lamp, the forming time is greatly shortened, the efficiency is increased, the ceramic lamp holder has relatively high strength and is not prone to breakage, delicate shapes and structures can be formed in a manner of being matched with steel molds, the calcining deformation rate is low, the calcining shrinkage is low, and thus the requirements of the lamp holder on shape size accuracy are met.

The invention relates to a hybrid peptide with a high arginine content and an application thereof in stomach cancer treatment. The preparation method comprises the following steps: using an ultrahighpressure to preprocess walnut meal and egg-white protein suspension; using alkaline protease and papain to enzymatically hydrolyze the preprocessing product in steps under the assistance of ultrasonicwaves and microwaves; filtering the enzymatic hydrolysate, subjecting obtained supernate to reversed phase high performance liquid chromatography so as to separate target hybrid peptides in the supernate; taking the hybrid peptides as the template molecule, taking acrylic acid and methacrylic acid as the functional monomers, taking triethylene glycol dimethacrylate as the crosslinking agent, taking isopropyl thioxanthone as the initiator, and carrying out polymerization triggered by UV rays to form a surface molecularly imprinted membrane, which is used to separate and enrich target hybrid peptides in the supernate of the enzymatic hydrolysate. The arginine content of obtained hybrid peptide is more than 18%. The MTT method detection result show that the hybrid peptide with a high arginine content can effectively inhibit the proliferation of human stomach cancer SGC-7901 cell. The provided method reduces the product cost and the industrial production is promoted.

The invention relates to a mixed peptide with high arginine content and its application in the treatment of breast cancer. The preparation method comprises the following steps: pretreating the walnut meal and egg white protein suspension by ultra-high pressure, and then using alkaline protease and papain to enzymolyze the pretreated product step by step under the assistance of ultrasonic waves and microwaves; enzymatic hydrolysis The supernatant liquid after liquid filtration was separated by reversed-phase high performance liquid chromatography to separate the target mixed peptide; the mixed peptide was used as template molecule, acrylic acid and methacrylic acid were functional monomers, triethylene glycol dimethacrylate was The coupling agent, isopropylthioxanthone as the initiator, UV-induced polymerization to form a surface molecularly imprinted membrane, which is used to separate and enrich the target mixed peptides in the enzymatic hydrolysis solution. The content of arginine in the mixed peptide is more than 18%; it is found by the MTT method that the homo-arginine mixed peptide can effectively inhibit the proliferation of human breast cancer MCF‑7 cells. This law helps to reduce product cost and accelerate the realization of industrialized production.

The time-release dental adhesive is made as a two-part preparation to increase shelf life. The first part contains three monomers (hydroxyethyl methacrylate [HEMA], triethyleneglycol dimethacrylate [TEG-DMA], and bisphenol A di(ethyl-methacrylate) [BPA-DEMA]), glycerol, a polymerization catalyst, a filler, and a stabilizer. The second part contains the same three monomers listed above, an acrylic resin to increase viscosity, an accelerator, a filler, and a sugar or sugar-based sweetener. When desired for use, the two parts are mixed in a 1:1 ratio by weight. The adhesive cures to a strong, hard bonding agent, but gradually weakens in the presence of moisture to provide a time-release adhesive. The amount of elapsed time before release of the adhesive may be controlled by changing the quantity of sugar or sugar-based sweetener in the adhesive.

Disclosed is an anti-UV LED light decay, radiation cross-linked polyethylene insulating material, and a preparation method thereof. The raw materials comprise a matrix resin, a specific photoinitiator, a specific photoinitiator aid, and a specific multi-functional group crosslinking aid. The matrix resin is composed of polyethylene resin, a light-transmitting resin, and an ethylene-vinyl acetate copolymer. The preparation method comprises weighing each raw material in accordance with a formula, mixing and stirring the polyethylene resin, the specific photoinitiator, the specific photoinitiator aid and the specific multi-functional group crosslinking aid to prepare a premix, mixing the premix with the remaining raw materials, and extruding same to form and obtain an insulating material. The insulating material of the present invention can be processed at a low temperature, and has a sufficient degree of crosslinking without the need to reduce the extrusion speed.