68results about How to "Avoid photolysis" patented technology

The invention belongs to the field of medicine preparations, which particularly relates to a chewable tablet of montelukast sodium. Because the production process of the chewable tablet of the montelukast sodium needs the light shielding operation at present, the mass production is inconvenient, and the chewable tablet of the montelukast sodium has the defect of poorer stability. In the invention, zinc stearate and an opacifier of iron oxide red, iron oxide yellow and titanium dioxide are added into the auxiliary materials of a chewable tablet of montelukast, so that the content of relevant substances can be lowered, and the stability of the chewable tablet is enhanced.

The invention provides a catheter for optical ablation of tissue in a living body, the catheter including: a distal end; a proximal end; an elongate catheter body coupled between the distal end and the proximal end; a light emission device at the distal end and configured to emit an ablation light having characteristics selected to regulate an optically regulatable transcription control element operably linked to a nucleic acid sequence for a gene product, the expression of which gene product in cells directly or indirectly kills cells; and a projection control mechanism coupled to the light emission device and configured to control an effectively illuminated area where the optically regulatable transcription control element is effectively regulatable by the ablation light projected from the light emission device. Also provided is a system which includes the catheter, and methods to prevent, inhibit or treat AF which employ an expression cassette and / or one or more selected wavelengths of light.

To provide a compound having an effect for preventing photolysis of a liquid crystal composition, and having a high solubility in the liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1), a liquid crystal composition contains the compound, and a liquid crystal display device includes the composition:M(Z-Q)a(Rb)b  (1)wherein, in formula (1), a is 1 to 4, and b is a numerical value: (4−a); M is an organic group; Z is a single bond or the like; and Q is a monovalent group represented by formula (Q-1), (Q-2) or (Q-3), in which Ra and Rb are hydrogen, alkyl or the like.

The invention discloses an efficient stable perovskite solar cell and a preparation method thereof. The cell is characterized in that the cell structurally comprises a transparent conductive substrate, a window layer, a perovskite light absorption layer and an anti-ultraviolet hydrophobic layer from bottom to top in sequence. Compared with a traditional perovskite solar cell, the efficient stableperovskite solar cell has the advantages that one layer of anti-ultraviolet hydrophobic layer is added to the surface of the perovskite light absorption layer, on one hand, the anti-ultraviolet hydrophobic layer can have the dampproof and protective effects, and thus the perovskite light absorption layer is prevented from being hydrolyzed; on the other hand, the anti-ultraviolet hydrophobic layercan also absorb ultraviolet light, so that the perovskite light absorption layer is prevented from being photolyzed, and the ultraviolet light can be converted into visible light and can be used. Therefore, the efficient stable perovskite solar cell has remarkable advantages that the stability and photoelectric conversion efficiency of the efficient stable perovskite solar cell are improved.

The invention relates to an antibacterial drug for livestock, particularly a preparation method of a smellless coated enrofloxacin preparation. The antibacterial drug for livestock is prepared from the following raw materials in percentage by weight: 5-15% of enrofloxacin, 0.01-0.1% of polyacrylic resin II, 1-10% of polyethyleneglycol, 50-70% of stearic acid, 25-45% of beta-cyclodextrin, 50-60% of water and 30-50% of anhydrous ethanol. The preparation method comprises the following steps: evenly stirring beta-cyclodextrin and water, adding enrofloxacin and polyethyleneglycol, stirring, drying the obtained inclusion compound, and pulverizing; heating stearic acid to a transparent liquid, adding the pulverized inclusion compound, and carrying out spray freeze-drying to obtain microcapsule particles; and finally, dissolving a hydrophobic material in anhydrous ethanol, and carrying out bottom-spray coating on the microcapsule particles to obtain the finished product. After the enrofloxacin is coated, the bitterness is covered up, so that the enrofloxacin does not stimulate the stomach, thereby preventing the ingesting animals from gastrospasm and nausea, and thus, the enrofloxacin can be orally dosed to pigs; the multilayer coating prevents the enrofloxacin from composition under the light, and can be mixed in a wet state; and the invention is convenient for production, and fully displays the powerful bactericidal action of enrofloxacin.

The invention belongs to the field of daily chemicals, and particularly relates to a skin-care composition with a sunscreen effect as well as a preparation method and application thereof. The skin-care composition, provided by the invention, comprises the following components: a natural plant extract, palmitoyl tetrapeptide-7, vitamin E, oryzanol and oligomeric proanthocyanidin, wherein the natural plant extract contains a variety of natural plant sunscreen extracts, has a very good overall effect of absorbing ultraviolet light, scavenging free radicals, inhibiting generation of melanin, inhibiting release of allergy mediators, protecting fibroblasts, inhibiting the activity of matrix metalloproteinase and the like, and has a very good sunscreen effect; the oligomeric proanthocyanidin can be used as a protective agent for the oryzanol and the vitamin E, is free of skin irritation, has an antioxidant protective effect on skin, and can improve the skin-care and sunscreen effect of the composition.

The invention discloses a preparation method and application of water-soluble insect-resistant and mosquito-repellent plant oil. The plant oil is included in a water-soluble cyclodextrin derivative to prepare a water-soluble inclusion compound. One or more kinds of inclusion compounds are taken for compounding to prepare a water spray agent or fumigant or powder used for insect prevention, mould prevention, bacteriostasis, freshness preservation and other aspects of grain, food materials, food, uncooked and cooked meat products and aquatic products. In addition, the plant oil can also be used for repelling mosquitoes and flies in a public environment to keep the environment sanitary. The plant oil has the advantages of being made from all natural plant ingredients without any organic solvent.

The invention belongs to the field of medicine preparations, which particularly relates to a chewable tablet of montelukast sodium. Because the production process of the chewable tablet of the montelukast sodium needs the light shielding operation at present, the mass production is inconvenient, and the chewable tablet of the montelukast sodium has the defect of poorer stability. In the invention, zinc stearate and an opacifier of iron oxide red, iron oxide yellow and titanium dioxide are added into the auxiliary materials of a chewable tablet of montelukast, so that the content of relevant substances can be lowered, and the stability of the chewable tablet is enhanced.

The invention discloses liquid vitamin and a manufacture method thereof. The liquid vitamin is produced by 1.5% to 3.0% of fat soluble vitamin, 2.5% to 5.0% of water soluble vitamin, 0.02% to 0.05 % of fat soluble vitamin antioxidant formed by butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), gallic acid propyl ester or arbitrary combination of BHA, BHT and gallic acid propyl ester, 0.05% to 0.1% of water soluble vitamin antioxidant composed of mercaptoacetic acid and / or 2-mercaptoethanol, 0.005% to 0.05 % of antioxidant synergist composed of citric acid, ethylene diamine tetraacetic acid (EDTA)-2Na, erythorbic acid or arbitrary combination of citric acid, EDTA-2Na and erythorbic acid, 0.2% to 1% of preservative formed by methylparaben, propylparaben, benzyl alcohol or arbitrary combination of methylparaben, propylparaben and benzyl alcohol, 15% to 30% of emulsifier composed of twain and / or OP-10 and 60.8 % to 80.725% of infusion water. The liquid vitamin is produced in a good manufacturing practice (GMP) ten-thousand-stage clean workshop under the situation that the illumination intensity of the workshop is smaller than 20Lux and temperature of the workshop is controlled between 22 DEG C to 25 DEG C. The fat soluble vitamin antioxidant and the water soluble vitamin antioxidant in the liquid vitamin can uniformly and stably coexist in the same solution and are long in storage time.

A nicotine microseftgel suspension for green economic crops is prepared from nicotine, surfactant, plant oil, assistant, solvent, and water through hydrolizing two or more of animal glue, plant gum and gelatin of sea products to obtain hydrated substance, proportionally mixing said raw materials, heating to 50-80 deg.C, stirring, adding the heated said hydrated substance at 50-80 deg.C after filter, stirring at 200-600 rpm, and naturally cooling. Its advantages are slow photodegradation, and high durability.

A microsoftgel-type green agricultural chemical features that its microsoftgel is composed of core and skin. It is prepared through dissolving raw agricultural chemical in solvent, adding assistant, plant oil, surfactant and solvent to obtain core, hydrolyzing the animal glue, plant gum and sea product gelatin, filtering, mixing to obtain skin, mixing said core with skin, stirring at 200-600 rpm, and naturally cooling for 2 hr. Its advantages are high effect and durability, and low cost.

The invention discloses a preparation method of a traditional Chinese medicine composition for treating advanced non-small cell lung cancers. The method comprises the following steps of: 1. taking root of glaucescent fissistigma, barbated skullcup herb, radix astragali, sanqi and platycodon root; 2. removing impurities from sanqi and washing, drying, grinding, sieving and sterilizing sanqi, removing impurities from barbated skullcup herb and washing and cutting barbated skullcup herb into segments, removing impurities from glaucescent fissistigma, radix astragali and platycodon root and washing, moistening and slicing glaucescent fissistigma, radix astragali and platycodon root; 3. mixing barbated skullcup herb, glaucescent fissistigma, radix astragali and platycodon root and then adding water to soak the medicines, decocting the medicines and filtering the decoction; 4. adding water to the medicine dregs, decocting the medicine dregs, filtering the decoction, mixing the filtrate and concentrating the filtrate into thick paste under reduced pressure; 5. adding sanqi to the thick paste, mixing the medicines uniformly and then drying the mixture under reduced pressure, grinding the dried mixture and sieving the powder to obtain dry paste powder; and 6. capsulizing the dry paste powder to obtain a capsule, or adding dextrin and magnesium stearate to the dry paste powder, mixing the materials uniformly, granulating the mixture, drying the granules under reduced pressure, tabletting the dried granules and sugarcoating, thus obtaining a tablet. The preparation method has the advantages that the anticancer active ingredients in the traditional Chinese medicine are fully extracted and the transfer rates of the anticancer active ingredients are above 90%.

The invention discloses a pellet type pantoprazole sodium enteric capsule and a preparation method thereof. The pellet type pantoprazole sodium enteric capsule is a sustained-release preparation composed of a capsule shell and uniformly mixed pantoprazole sodium pellets held in the capsule shell; the pantoprazole sodium pellet from inside to outside in turn comprises a blank pellet core, a main drug layer, an isolation layer and an enteric layer, wherein the weight of the main drug layer is 14-55% of that of the blank pellet core, the weight of the isolation layer is 9-10% of that of the total weight of the blank pellet core and the main drug layer, the weight of the enteric layer is 28-32% of that of the total weight of the blank pellet core, the main drug layer and the isolation layer; 40-60% of that of the pantoprazole sodium pellet is coated with a pigmented layer on the outside of the enteric layer; the weight of the pigmented layer is 0.5-1% of that of the total weight of the blank pellet core, the main drug layer, the isolation layer and the enteric layer; the diameter of the blank pellet core is 0.8-1.0 mm; the granularity of the pantoprazole sodium pellet is 14-20 mesh; each capsule contains 20-40 mg of the pantoprazole sodium. The pellet type pantoprazole sodium enteric capsule has the advantages of acidproof, rapid release and stable.

The invention discloses a catalyst with high safety used for synthesizing 2-picoline and the preparation method, the procedures are: add THF and NaNH2 in sodium salt kettle, drip CPD when the temperature is 0 to 45 DEG C. and keep the reaction for 0.5 to 3 hours to produce CPD sodium; add anhydrous CoCl2 in the synthesis kettle after adding tetrahydrophthalic anhydride furan, stir for 30 to 40 minutes then add the prepared CPD sodium, keep the backflow of the liquid at the temperature of 60 to 70 DEG C. and keep stirring reaction for 1 to 2 hours continuously, the reaction of preparing catalyst is finished; after the backflow ending, recycle solvent and increase the temperature to 65 to 75 DEG C., when the liquid flow volume is reduced, open vacuum pressure distill recycle solvent, stir and add acetonitrile continuously when having no liquid in the kettle, after stirring for 1 hours under the room temperature to remove sodium chloride and get the catalyst in mixture state. The invention has simple reaction process, which prevents the strict requirements and complication of the synthesis technique of organic Co catalyst crystal.

The invention belongs to the field of novel pesticide preparation and relates to a horseradish microcapsule suspending agent and a preparation method thereof. In the microcapsule suspending agent, horseradish serves as a capsule core, polyurea which is obtained through interface polymerization reaction of an oily monomer isocyanate compound and a water-based monomer polyamino compound serves as acapsule wall, and the mass ratio of the capsule core to the capsule wall is 1-40 to 1-10. Through the preparation method of the horseradish microcapsule suspending agent, which is provided by the invention, the capsule wall is solidified at normal temperature, energy consumption is reduced, volatilization of the horseradish is effectively retarded, the medicine effective period of the horseradishis prolonged, the stability of the horseradish is improved by adding a proper amount of a stabilizer, damages to a medicine applying person are reduced, and the grain size of the prepared microcapsuleis 0.5 to 40 um.

The invention provides a pesticide nano preparation and a preparation method thereof, and belongs to the technical field of pesticide preparations. The preparation method of the pesticide nano preparation provided by the invention comprises the following steps: dissolving a pesticide in an organic solvent, adding the obtained pesticide solution into water, and carrying out ultrasonic treatment toobtain a pesticide nano particle dispersion liquid; mixing the pesticide nanoparticle dispersion liquid, a dopamine hydrochloride aqueous solution and a Tris-HCl buffer solution to enable the pH valueof the obtained mixed material liquid to be 7.5-9.5, and then performing polymerization reaction to obtain a polymerization product system; and dialyzing and drying the polymerization product systemin sequence to obtain the pesticide nano preparation. According to the invention, dopamine hydrochloride in-situ polymerization is utilized to form a polydopamine shell on the surfaces of the pesticide nanoparticles, and the polydopamine shell can well absorb light, has a protective effect on the pesticide and avoids photolysis of the pesticide. Meanwhile, the method provided by the invention is simple and convenient to operate, low in cost, good in repeatability, green and environment-friendly.

The invention discloses a preparation method of Chinese medicinal tablets and capsules for tonifying kidney and strengthening yang. The method comprises the following steps of: 1, weighing 150-250 parts by weight of fructus rosae laevigatae, 30-100 parts by weight of gecko, 500-600 parts by weight of epimedium herb, 30-100 parts by weight of semen allii tuberose and 200-300 parts by weight of dogwood; 2, pulverizing 52.5 parts by weight of gecko and 52.5 parts by weight of semen allii tuberose into fine powder, and pulverizing the remaining gecko and semen allii tuberose into coarse powder; 3, decocting the coarse powder, the fructus rosae laevigatae, the epimedium herb and the dogwood twice, filtering and combining filtrate and concentrating to thick paste; and 4, adding the fine powder into the thick paste to prepare the Chinese medicinal tablets and capsules for tonifying kidney and strengthening yang. According to the preparation method provided by the invention, the transfer rates for active ingredients of the medicaments are that: the transfer rate of rosa lacvigata michx polysaccharide reaches 98.6 percent, the transfer rate of icariin reaches 96.7 percent and the transfer rate of loganin reaches 95.8 percent; the transfer rates are obviously higher than those in the conventional method; meanwhile, the leaching of the inactive ingredients is reduced; the pharmaceutical effect is improved; and the cost is reduced.

The invention discloses a mini-pill type nicergoline capsule and a preparation method thereof. The mini-pill type nicergoline capsule is a sustained-release preparation and is prepared from a capsule shell and a nicergoline mini-pill accommodated in the capsule shell, wherein the nicergoline mini-pill sequentially comprises an empty pill core, a main drug layer and a pigmented layer from inside to outside; the main drug layer accounts for 15-60 percent of the empty pill core, and the pigmented layer accounts for 0.5-1 percent of the total weight of the empty pill core and the main drug layer. The mini-pill type nicergoline capsule has the advantages of small stimulation to intestines and stomach, high utilization rate, high stability, less toxic or side effects and capability of fully releasing effective components in time.

The invention discloses a pellet type omeprazole enteric capsule and a preparation method thereof. The pellet type omeprazole enteric capsule is a sustained-release preparation, and is composed of a capsule shell and evenly mixed omeprazole pellets received in the capsule shell; each omeprazole pellet is composed of a blank pill core, a main drug layer, an isolation layer and an enteric layer in order from inside to outside, wherein the weight of the main drug layer accounts for 15-60% of that of the blank pill core, the weight of the isolation layer accounts for 10% of the total weight of the blank pill core and the main drug layer, the weight of the enteric layer accounts for 28-32% of the total weight of the blank pill core, the main drug layer and the isolation layer; besides, the enteric layers of 40-60% of omeprazole pellets are further coated with pigment layers; the weight of the pigment layer accounts for 0.5-1% of the total weight of the blank pill core, the main drug layer, the isolation layer and the enteric layer; the diameters of the blank pill cores are 0.8-1.0mm; the granularity of the omeprazole pellets is 14-20 meshes; each capsule contains 15-30mg of omeprazole. The pellet type omeprazole enteric capsule has the advantages of good acid resistance, sufficient active ingredient release without delay, good stability and the like.

The invention relates to the field of hydrogen chloride catalytic oxidation, and discloses a method and device for hydrogen chloride photocatalytic oxidation. According to the invention, a reactor isdivided into a light irradiation area and a non-light area, wherein the light irradiation area can be irradiated by light, and the non-light area cannot be irradiated by light. Gas between the light irradiation area and the non-light area can circulate, so that product gas is effectively prevented from continuous reverse photolysis under an illumination condition, and the yield is improved.

The invention discloses a portable sediment sampler and a sampling method. The sampler comprises a fixed support, a sampling rod and a sampler, wherein the fixed support is connected with a fixing device, the sampling rod is connected with a sleeve, the sleeve is ball-jointed on the fixed support, a detachable cylinder is also mounted below the sleeve, one end of the cylinder is located on the fixed support, the sampling rod comprises a fixed rod and a telescopic rod, the sampler is mounted at one end of the telescopic rod, a sampling shovel is mounted at one end of the sampler and connected with the fixed rod through a string, the sampling shovel comprises an upper clamping piece and a lower clamping piece which are mounted on the sampler through hinged shafts, and tail ends of the upperclamping piece and the lower clamping piece are connected through a spring. The string is tensioned, the sampling shovel is opened, the sampler works, after the sampler finishes the work, the string is loosened, and the sampling shovel is closed. The portable sediment sampler can sample riverbed sediment at different depths, ensure that the sampling rod rotates freely and keep stable.

To provide a compound having an effect for preventing photolysis of a liquid crystal composition, and having a high solubility in the liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1), a liquid crystal composition contains the compound, and a liquid crystal display device includes the composition:M(Z-Q)a(Rb)b  (1)wherein, in formula (1), a is 1 to 4, and b is a numerical value: (4−a); M is an organic group; Z is a single bond or the like; and Q is a monovalent group represented by formula (Q-1), (Q-2) or (Q-3), in which Ra and Rb are hydrogen, alkyl or the like.

The invention relates to a method for inducing the accumulation of stilbenes resveratrol, polydatin and pterostilbene in grape leaves, grape stems and grape fruits. The method comprises related methods for preparation of a hydrogen peroxide inducer, spraying treatment of in-vivo and in-vitro materials of grapes and impregnation treatment of the in-vitro materials of the grapes. According to the technical scheme, increase of stilbene content of the materials can be effectively, specifically and comprehensively induced, and the method has the characteristics of safety and convenience for large-scale application to township enterprises with rich grape resources, and is easy to operate. The quality of the grapes can be improved, grape planting waste can be comprehensively utilized, and grape trees can resist pathogenic bacteria to a certain extent to reduce loss caused by diseases.

To provide a compound having an effect for preventing photolysis of a liquid crystal composition, and having a high solubility in the liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1), the liquid crystal composition contains the compound, and the liquid crystal display device includes the composition.In formula (1), R1, R2, R3 and R4 are independently hydrogen or alkyl having 1 to 4 carbons; ring A1 and ring A2 are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1, Z2 and Z3 are independently a single bond, alkylene or the like; and n is 0, 1 or 2.

To provide a compound having an effect for preventing photolysis of a liquid crystal composition, and having a high solubility in the liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1), the liquid crystal composition contains the compound, and the liquid crystal display device includes the composition.In formula (1), R1, R2, R3 and R4 are independently hydrogen or alkyl having 1 to 4 carbons; ring A1 and ring A2 are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1, Z2 and Z3 are independently a single bond, alkylene or the like; and n is 0, 1 or 2.

The invention discloses a brown sugar sweet drinking granule and a preparation method thereof. The brown sugar sweet drinking granule is prepared from, by weight, 60-75 parts of brown sugar, 1-5 partsof xylooligosaccharide powder and 5-25 parts of an extract, wherein the weight ratio of the brown sugar to the extract is 5-12:1; the extract is a mixture of extracts from natural plant materials. The brown sugar sweet drinking granule is dissolved rapidly in water, has no precipitate, is good in stability, has high content of effective components, has natural spiciness, fragrance and aroma, remains the original taste and smell of the raw materials, is fine and smooth, and has fine and smooth taste, intense flavor and no tea residues, and is high in nutritional ingredient.

The invention relates to a bock greenbrier rhizome soft capsule and its preparation method, belongs to the technical field of traditional Chinese medicine. The bock greenbrier rhizome soft capsule is prepared by taking bock greenbrier rhizome water extractive as medicinal composition, matching ingredient solvent matrix and beewax to form content, and taking brown ferric oxide as main component of an external capsule cover. The soft capsule is featured by fast disintegration speed, high bioavailability and good product stability. Meanwhile, the preparation method of the water extractive can improve the content of effective component diosgenin; therefore, the drug effect of the soft capsule is more significant.

The invention provides an automatic pesticide dilution device which comprises a main pipe for feeding water. A water inlet valve, a main flow meter and a water outlet valve are arranged on the main pipe, a dosing device is further arranged between the water inlet valve and the water outlet valve and comprises an air bottle and a pesticide bottle, the pesticide bottle and the air bottle are sequentially connected onto the main pipe through tee structures and communicated with each other through a guide pipe, a non-return valve is arranged at the joint of the pesticide bottle and the main pipe,and a fractional flow meter and a discharge valve are further arranged on the guide pipe for connecting the pesticide bottle with the main pipe. Pesticides can be really prepared and used in real timeduring disease and pest control, liquid pesticides are prevented from layering, settling, photolysis and the like, and the automatic pesticide dilution device can also be used as a water, fertilizerand pesticide matching meter in water, fertilizer and pesticide integration of facility agriculture.

The invention discloses a bio-fertilizer rich in inositol and a preparation method of the bio-fertilizer. The fertilizer comprises the following components in parts by weight: 30-40 parts of a straw fermentation product, 10-20 parts of chicken manure, 20-30 parts of fishpond bottom mud, 30-40 parts of an inositol-containing material, 10-15 parts of potassium nitrate, 5-10 parts of traditional Chinese medicine residues, 5-10 parts of eggplant peel, 3-5 parts of quicklime powder, 3-8 parts of a microelement composition and 2.5-3 parts of a bacillus subtilis microbial agent. The inositol-containing material is applied to preparation of the fertilizer, so that waste of inositol extraction residues and trouble of treating the inositol extraction residues are avoided, and the efficient bio-fertilizer rich in nutrients and beneficial to crop absorption is provided for crops.