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117results about How to "Inhibition of value added" patented technology

Paclitaxel loaded sustained release nano fiber and preparation method and use thereof

The invention relates to a paclitaxel-loaded sustained release nano-fibre material which comprises the components of bio-degradable polymer material and pure paclitaxel, the mol ratio of which is 1.33 to 10. The diameter of the nano-fibre is 90nm to 1.44micrometer, and the drug-loading rate can be regulated within the range of 0 percent to 100 percent. The preparation of the nano-fibre comprises the steps as follows: (1) the bio-degradable polymer material is solved in organic solvent and stirred to be solved completely to obtain lamella spinning solution A; (2) the white pure paclitaxel powder is solved in trifluoroethanol and stirred to be solved completely to obtain core spinning solution B; (3) clear transparent solutions A and B are respectively added into two injectors; the speed of a microinjection pump, the voltage of a static generator and the receiving distance between a grounded aluminum foil and a spinning needle are adjusted, and unordered drug-loaded nano-fibre is obtained by a coaxial electrostatic spinning technology. A nanometer control release system composed by the drug-loaded nano-fibre effectively controls the sustained release of the drug and is applied to the preparation of the drug for remedying malignant tumor.
Owner:DONGHUA UNIV

Agricultural ecological technique capable of preventing and controlling liberobacter asiaticum as well as harvesting organic oranges

The invention discloses an agricultural ecological technique capable of preventing and controlling liberobacter asiaticum as well as harvesting oranges. The agricultural ecological technique is characterized by comprising production and culture: a biological organic fertilizer is used, a metabolic photosynthetic accelerant and ion liquid for improving resistance are sprayed, and a biological source agricultural chemical and artificial and mechanical weeding are used for preventing and treating diseases and pests and weeds. The agricultural ecological technique disclosed by the invention has the advantages that the productivity, the immunity, the disease resistance and the disease tolerance of the oranges can be improved; the spreading speed of the liberobacter asiaticum is reduced, so that healthy trees can obtain high yield; the trees suffering from light and moderate diseases restore the productivity which achieves or approaches the level of that of trees free from diseases; the trees suffering from serious diseases restore growing trend, definite productivity is maintained, and the fruiting period is prolonged; the fruit quality can be improved, and besides, good-quality organic orange products are harvested; the agricultural ecological technique has important significance on guaranteeing the production benefit of orange fruit growers, and promoting the steadily forward development of orange industry in rural economy.
Owner:惠州市阿杨工农业科技有限公司

Cultivation method capable of reducing stichopus japonicus disease and pest injuries with corrosion inhibition nanometer materials

InactiveCN103563806AImprove heat resistanceImprove specific and non-specific immunityClimate change adaptationAnimal feeding stuffSpirodelaStichopus
The invention discloses a cultivation method capable of reducing stichopus japonicus disease and pest injuries with corrosion inhibition nanometer materials. The method includes the following steps that a stichopus japonicus cultivation pool and an adhesion base are constructed; according to the requirement for habits of the stichopus japonicus biology, the pool suitable for growth of stichopus japonicus is built up by combining with real conditions and stichopus japonicus offspring seeds are put; normally, large seeds with the density of more than 600 per kilogram are put according to the density of 10 per m<2> to 20 per m<2>, the larger the specifications are, the less the put amount per unit area is; a formula of the cast feed comprises, by weight, 20-25 parts of animal proteolysis article dry powder, 15-20 parts of meat and bone meal, 20-22 parts of soybean meal, 4-6 parts of honeysuckle, 2-3 parts of medicated leaven, 3-5 parts of angelica sinensis, 2-3 parts of soya bean lecithin, 1-2 parts of alginate-derived oligosaccharide, 1-2 parts of vitamin C, 1-2 parts of spiral seaweed, 2-3 parts of hunmulus lupulus, 3-5 parts of tea saponin, 2-3 parts of common cnidium fruit, 3-4 parts of fructus ulmi and 1-2 parts of cortex pseudolaricis. The stichopus japonicus offspring seeds are managed. In winter, the depth of water in the pool is increased, changes of dissolved oxygen and a base material must be paid attention to and sea grass is prevented and controlled; in spring, when the temperature of the water in the pool goes up, firstly, the water goes rich, the transparency of the water is reduced and cultivation of the sea grass is controlled.
Owner:TAICANG JINZHU AGRI DEV

Water-resistant medical cotton fabric resistant to protein contamination and preparation method thereof

InactiveCN109023963AGood chain flexibilityStrong space repulsionMedical preparationsVegetal fibresChemistryOxidation resistant
The invention provides water-resistant medical cotton fabric resistant to protein contamination and a preparation method thereof. The method comprises the following steps: after the medical cotton fabric is activated by an alkali solution, fully immersing the medical cotton fabric in a triacetyl galloyl chloride solution, and adding a pyridine catalyst drop by drop, after constant temperature shaking, adding an acetate solution drop by drop, cooling and washing the materials, and drying the materials to obtain the antioxidant medical cotton fabric; dipping the antioxidant medical cotton fabricin a buffer solution of dopamine, and performing an oscillatory reaction at room temperature and taking the material out to obtain the polydopamine-modified medical cotton fabric; coating the surfaceof the polydopamine-modified medical cotton fabric with a polyethylene glycol solution, performing heat treatment in an oven at 75-80 DEG C for 60 to 120 min, cooling the material to room temperature, and then performing heat treatment with ethanol water vapor to obtain the medical cotton fabric. The surface of the medical cotton fabric prepared by the invention is not easy to form protein or a bacterial film, the medical cotton fabric has good anti-protein contamination performance, and is excellent in water resistance.
Owner:武汉智达纺织科技有限公司

Opening-free heat insulation cage ingot casting device and method

The invention relates to field of polycrystalline silicon ingot casting, in particular to an opening-free heat insulation cage ingot casting device and method. The device comprises a heat insulation cage, wherein a lateral heater is arranged on the inner side face of the heat insulation cage, a top heater is arranged at the top in the heat insulation cage, and the lateral heater and the top heater are separately controlled by double power supplies. In a melting step, the temperature of an air cooling DS block is controlled not to be higher than 1400 DEG C. In astep of change from melting to crystal growth, the temperature of an air cooling DS block is 1300-1360 DEG C, the temperature of the top heater is 1530-1545 DEG C. In a crystal growth step, the temperature of the top heater is reduced from 1430 DEG C to 1400 DEG C, and the temperature of the air cooling DS block is reduced from 1300 DEG C to 1000 DEG C. By the adoption of the opening-free heat insulation cage ingot casting device, the heat insulation cage cannot be needed to be opened, the subfissurescrap ratio of cut silicon wafers is reduced by about 15%, the dislocation number of silicon ingots in growth is effectively controlled, the photoelectric conversion efficiency of silicon wafer products is high, and the stability is good.
Owner:YICHANG CSG POLYSILICON CO LTD

Essence for dispelling acne traces

The invention discloses essence for dispelling acne traces, and relates to the technical field of cosmetics. The essence comprises the following components of water, butanediol, a PEG/PPG-17/6 copolymer, nicotinamide, a centella asiatica extract, PEG/PPG/polytetramethylene glycol polytetramethylene glycol-8/5/3 glycerine, a radix sophorae yellowish sophora extract, a glycyrrhiza inflata root extract, a scutellariae extract, glycerine, a harba dendrolii nobilis stem extract, an aloe vera leaf extract, a lycium barbarum l. fruit extract, a purple echinacea Echinacea purpurea extract, 1,2-hexanediol,hydroxyacetophenone, phenoxyethanol, carbomer, triethanolamine, sodium hyaluronate, PEG-40 hydrogenated castor oil and cananga odorata flower oil. The nicotinamide in the raw materials has the efficacy of resisting inflammation and dispelling melanin, and can lighten acne traces, besides, components of the centella asiatica extract and the like are added, so that wound healing can be promoted,and the regeneration capacity of skin can be strengthened. Through effective combination of restraining melanin and repairing regenerated skin and muscle, the purpose of dispelling acne traces can beachieved, and the effect of dispelling acne traces is good.
Owner:南京苗邦美业企业管理有限公司

Composite fermentation type traditional Chinese medicine for improving stress resistance of livestock and poultry and preparation method of composite fermentation type traditional Chinese medicine

The invention discloses a composite fermentation type traditional Chinese medicine for improving stress resistance of livestock and poultry. The composite fermentation type traditional Chinese medicine is prepared from the following active pharmaceutical ingredients in parts by weight: 10-40 parts of lancelesf lily bulbs, 20-60 parts of kudzuvine root, 10-50 parts of silktree albizzia bark, 40-80 parts of cortex acanthopanacis radicis, 40-80 parts of eucommia bark, 5-25 parts of liquorice root, 10-40 parts of common anemarrhena rhizome and 5-20 parts of gypsum. The composite fermentation type traditional Chinese medicine is prepared by combining a traditional Chinese medicine recipe with a modern microbial technology, adding wheat bran, soybean meal, ammonium sulfate, magnesium sulfate, calcium carbonate and an appropriate amount of water after ultrasonic crushing to constitute a fermentation culture medium, adding a certain proportion of a strain culture solution of composite bacteria, fermentating, adding a stabilizer into a mature solid fermented matter, and performing low-temperature drying for preparation. The traditional Chinese medicine biological preparation prepared after microbial fermentation metabolism can significantly improve absorption and utilization of the medicine, improve the stress resistance of organisms of livestock and poultry, strengthen the immunity of the organisms, improve the production performance of livestock and poultry, effectively prevent and treat immunity suppression diseases and stress diseases and the like.
Owner:河南天纳图生物科技有限公司

Preparation method of medical polyurethane sponge for wound surface sealing negative pressure drainage

The invention discloses a preparation method of a medical polyurethane sponge for wound surface sealing negative pressure drainage. The preparation method specifically comprises the following steps: (1) pretreatment of the polyurethane sponge: sequentially carrying out cutting, cleaning and drying process treatment; (2) preparing a polyurethane sponge impregnation liquid, wherein the impregnationliquid comprises polyglutamic acid, polylysine, a cortex phellodendri extract and a thickening agent; and (3) putting the polyurethane sponge into the impregnation liquid for impregnation treatment, putting the polyurethane sponge into a drying oven or a drying room at the temperature of 40-70 DEG C after impregnation is finished, and forming a gel layer on the surface of the polyurethane sponge in contact with the impregnation liquid after drying. According to the medical polyurethane sponge for wound surface sealing negative pressure drainage, the gel layer is arranged on the side, making contact with the wound surface, of the medical polyurethane sponge, and the gel layer has the effects of resisting bacteria, promoting cell repair and proliferation, accelerating wound healing, reducingadhesion between newly-generated granulation and the polyurethane sponge and avoiding secondary damage to the wound.
Owner:NANJING SHUANGWEI BIOTECH

Method for breeding artificial aeguidens rivulatus fries by nano feeds

The invention discloses a method for breeding artificial aeguidens rivulatus fries by nano feeds. The method comprises the following steps: selecting a breeding facility, namely a square pond with the characteristics of flat bottom, less sludge, convenience in irrigation and drainage and average water depth of 0.8m; disinfecting the pond by 10mg/L of trichloroisocyanuric acid in 10 days before aeguidens rivulatus is put into the pond; keeping clear water and the pH value to be 7.8, wherein aeguidens rivulatus fries are hatched out by fertilized ova after 2-3 days and can freely move for finding foods in another 5-6 days; feeding the aeguidens rivulatus fries with fairy shrimps or small water fleas for four times each day in the beginning; after half a month, feeding the aeguidens rivulatus fries with blood worms (cladocerans); after a month, feeding the aeguidens rivulatus fries with artificial compound feeds, optimally selecting and using feeds with high protein content such as fresh fish meat, shrimp meat and snail meat, also selecting and using compound feeds, and generally feeding the aeguidens rivulatus fries with animal feeds for improving the nutrition and promoting the gonad development of parent fishes in a breeding season.
Owner:SUZHOU CITY XIANGCHENG DISTRICT SHENGHU SPECIAL CULTIVATION SPECIALIZED COOP

Submicron powder composition for preventing and treating poultry infectious diseases

The invention discloses a submicron powder composition for preventing and treating poultry infectious diseases. The composition is prepared by the following steps: (1) weighting the following raw materials: astragalus mongholicus, ginseng, saffron, artemisia annua, pseudo-ginseng, Chinese lobelia and Chinese trumpet creeper; (2) chopping the astragalus mongholicus, the ginseng, the pseudo-ginseng, the Chinese lobelia and the Chinese trumpet creeper, and preparing submicron powder by applying an ultra-fine crushing technology to ensure that the crushing granularity is lower than 10mu m and the plant cell wall-broken rate is over 90 percent; (3) extracting the saffron and the artemisia annua at normal temperature for 1 to 3 days with petroleum ether, concentrating and drying, and preparing the submicron powder by applying the ultra-fine crushing technology to ensure the crushing granularity of lower than 10mu m; and (4), mixing, roasting and boiling, and screening the submicron powder prepared in the step (2) and the step (3) to obtain the submicron powder composition for preventing and treating poultry infectious diseases. The composition is added into poultry premix to feed egg-laying poultry for a long time, so that the egg-laying poultry is protected from invasion of pathogenic microorganisms, and the egg laying rate of the infected poultry is recovered to be normal gradually.
Owner:TIANJIN JISHISHI BIOTECH
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