31results about How to "Special affinity" patented technology

The invention relates to a polypropylene mesh/electro-spinning nano-fiber membrane as well as a preparation method and an application thereof. The polypropylene mesh/electro-spinning nano-fiber membrane is prepared through the following steps: (1) preparing a chitosan-polyethylene glycol hydrogel; (2) preparing basic fibroblast growth factor (bFGF) embedded polylactic acid-poly lactic-co-glycolic acid (PLGA) microspheres; (3) preparing an electro-spinning solution; (4) preparing the polypropylene mesh/electro-spinning nano-fiber membrane by use of an electro-spinning method. According to the polypropylene mesh/electro-spinning nano-fiber membrane, the polypropylene mesh and the nano-fiber membrane are compounded creatively, and therefore, the biocompatibility of the polypropylene mesh is improved by use of the nano-fiber membrane and the tensile strength of the nano-fiber membrane is improved by use of the polypropylene mesh, and the polypropylene mesh and the nano-fiber membrane supplement each other; in addition, the microspheres are introduced to realize controlled drug release; as a result, lots of defects of the clinical existing polypropylene meshes can be overcome.

The present invention discloses a kind of bilobalide B emulsion for injection to treat cardiac and cerebral vascular diseases. The bilobalide B emulsion for injection is prepared with bilobalide B and medicinal supplementary material in certain ratio, and through dissolving, heating, mixing, emulsifying, cooling, filling and other technological steps. The bilobalide B emulsion for injection has high structural integrity and bioactivity of bilobalide B, high stability, high safety a high effectiveness. It is used for treating cardiac and cerebral vascular diseases, and can treat cardiac and cerebral vascular diseases in high effect and provide the patient with energy.

The invention relates to a treating fluid used for the cultivation of nucleus pearls, and belongs to the technical field of pearl cultivation. The treating fluid comprises the following components: (a),a first treating fluid and (b), a second treating fluid, wherein the first treating fluid comprises the components as follows: a bamboo charcoal powder solution, a dry-chrysanthemum solution, a gold mudstone solution, a gobi stone solution, a safflower parasitic skin solution, a peach parasitic skin solution, a safflower loranthus parasiticus skin solution and a vitamin B solution; the second treating fluid comprises the components as follows: acid red, chondroitin, mafenide, taurine, sodium chloride, hyriopsis cumingii polysacchride, vitronectin and water. According to the invention, through using the treating fluid for cultivation, the technical problems that the peals cultivated by the traditional method are dim in luster, poor in quality and low in survival rate are solved.

The invention relates to a method for cultivating nucleus pearls, and belongs to the technical field of pearl cultivation. The method comprises the steps as follows: step one, taking out a pearl nucleus to be put into a first treating fluid for soaking and cultivation; step two, taking out a cell chip of the edge membrane of the rear half part of a mussel body to be put into a second treating fluid for soaking and cultivation; step three, enabling the cell chip to be adhered to the pearl nucleus and planted into the mussel for cultivation so as to form a nucleus pearl, wherein the first treating fluid comprises the components as follows: a bamboo charcoal powder solution, a dry chrysanthemum solution, a gold mudstone solution, a gobi stone solution, a safflower parasitic skin solution, a peach parasitic skin solution, a safflower loranthus parasiticus skin solution and a vitamin B solution; the second treating fluid comprises the components as follows: acid red, chondroitin, mafenide, taurine, sodium chloride, hyriopsis cumingii polysacchride, vitronectin and water. According to the method provided by the invention, the rejection of the mussel body to pearl nucleus is overcome, the vitality of the cell chip is promoted, and large-scale operation can be implemented.

The present invention relates to one kind of slow released granular medicated diet for protecting gastrointestinal mucous membrane. The medicated diet is prepared with pearl, dark plum, Chinese yam, haw, malt and other seven kinds of Chinese medicinal materials in certain weight proportion. The medicated diet is used in treating gastrointestinal diseases and protecting gastrointestinal mucous membrane by means of its special affinity on gastrointestinal mucous membrane, and has the features of high effect and lasting action.

The invention belongs to the technical field of film separation and relates to a chitosan/ionic liquid cross-linked gel film with a sandwich structure and a preparation method thereof. The film is characterized in that the film has the sandwich structure, the upper and lower surface layers are arranged as cross-linked surfaces and a gel layer is arranged in the middle. The preparation method comprises the following steps: (1) uniformly mixing chitosan, ionic liquid and solvent under a certain temperature, paving on a polytetrafluoroethylene plate, and drying to remove the solvent to obtain a gel film; (2) soaking the gel film in the solution containing the cross-linking agent and catalyst for 0.2-12 hours and performing the surface cross-linking reaction on the gel film; (3) drying the cross-linked gel film in air for 24 hours, and then transferring into a vacuum drying oven, and processing for 24 hours at 30 DEG C, thereby acquiring the chitosan/ionic liquid cross-linked gel film with the sandwich structure. According to the preparation method provided by the invention, the upper and lower surfaces of the film are cross-linked, so that the chitosan/ionic liquid cross-linked gel film with the sandwich structure is formed, the ionic liquid is difficult to run off, the lasting stability of the physical structure and property of the film is ensured and the preparation method is fit for the separating of the carbon dioxide in the mixed gas and the recycling of the organic steam.

The present invention discloses a bilobalide (mixture or ginkgo extract) emulsion for injection, in particular, it relates to a bilobalide (including single bilobalide A, B and C, etc.) injection emulsion for curing angiocardiopathy and cerebrovascular disease. It is made up by using bilobalide and medicinal auxiliary material according to a certain ratio through the processes of dissolving, heating, uniformly mixing, emulsifying, cooling and filling to obtain the invented product.

The invention provides a gas phase magnesium purification method based on a pure iron filter material. The method uses the pure iron filter material to filter magnesium vapor, on one hand, the pure iron does not react with the magnesium vapor, and no new impurities are brought to the system; on the other hand, impurities Al, Mn and iron in the magnesium vapor have special affinity, and stable solid solution can be formed with iron; meanwhile, pure iron can be used as a site for nucleation of certain impurities in the magnesium vapor, so that the nucleation energy barrier can be reduced, the certain impurities can be deposited in advance, and impurities can be removed. The method can be applied to industrial large-scale gas phase magnesium purification, the production efficiency of magnesium purification is improved on the order of magnitude through increasing the temperature, the content of impurities Mn in the magnesium raw material is reduced to 10 ppm or below, the content of Al isreduced to 10 ppm or below, the content of Ca is reduced to 20 ppm or below, and meanwhile, non-metal impurity elements such as F, Cl and S can be removed to obtain the magnesium with the purity of 99.99% or above.

A medicine Cihuang nanoparticle for treating tumor is prepared from As2O3, thioacetylamine (TAA), hydrochloric acid and absolute alcohol as solvent through reaction at a certain temp.

The invention discloses a comprehensive method for removing non-condensable gas dissolved in a refrigerant, and relates to the technical field of refrigerant production and processing methods, in particular to the comprehensive method for removing the non-condensable gas dissolved in the refrigerant, and the method for removing the non-condensable gas in the refrigerant is divided into four independent methods and two combined methods. The method I specifically comprises the following steps: heating at constant pressure; the second method comprises the steps of degassing and membrane filtration; the third method comprises the following steps: ultrasonic degassing; a fourth method: molecular sieve adsorption; wherein the combination of the first method and the second method and the combination of the first method, the second method and the third method can also be used for removing the non-condensable gas. According to the comprehensive method, in the transferring and sub-packaging process of transferring and sub-packaging the refrigerant into another container, constant-pressure heating, degassing membrane filtration, ultrasonic degassing and molecular sieve adsorption methods are combined to remove non-condensable gas dissolved in the refrigerant.

Traditional Chinese medicine granules for treating cerebral thrombosis are composed of following ingredients: 40g of membranous milk vetch root, 6g of leech, 15g of sanchi, 15g of achyranthes, 30g of salvia miltiorrhiza, 15g of glechoma longituba, 15g of earthworm, 20g of European verbena and 20g of nux vomica, 1000g of water is added in the medicines for decoction till about 200g of water is remained, the medicines are prepared into the granules by fetching dregs, the dosage is once a day and one course of treatment is 7 days. The formula is used based on the conventional western medicine treatment for treating acute cerebral infarction, thereby having rapid onset of action, reliable and safe efficacy, fast recovery of patients and less sequelae.

The invention discloses an intestinal dialysis composition for pet dogs and cats and a preparation method of the intestinal dialysis composition and belongs to the field of veterinary care. The dialysis composition comprises the following components: 10-20g of unprocessed rehmannia roots, 10-20g of chitosan, 10-20g of calcium butyrate, 50-100g of modified zeolite and 200-300ml of acetic acid witha volume percentage of 4%. The preparation method comprises the following steps: sufficiently dissolving the unprocessed rehmannia roots, the chitosan and the calcium butyrate into the acetic acid, adding the modified zeolite, blending the components into a paste, performing sufficient infiltration, performing pelletizing by using a pelletizer, and performing drying at 60 DEG C for 4 hours, so asto obtain a finished product of which the particle size is 0.8-1.2mm. Components of the intestinal dialysis composition for pet dogs and cats take synergetic effects into play, uremia toxins such as urea and decomposition products, namely substances such as ammonia, phosphate and creatinine, of the uremia toxins, in intestines, can be adsorbed, small molecule substances such as the uremia toxins such as urea in blood can be promoted to be discharged to enterocoels, then the concentration of the small molecule substances in blood can be reduced, hyperazotemic and hyperphosphatemia caused by kidney failure can be relieved, and recovery of kidney failure can be facilitated. The composition is economic and practical and convenient to operate.

The invention provides a nickel base filter material-based gas phase magnesium purification method. The method is characterized in that a nickel base filter material is adopted to filter magnesium vapor, under a certain temperature and vacuum degree, on one hand, the nickel material does not react with the magnesium vapor, so that new impurities cannot be brought to a system; on the other hand, the nickel material and impurities Al and Mn in the magnesium vapor have special affinity, so that a stable solid solution can be formed; and meanwhile, the nickel material can be used as a site for nucleation of a certain of impurities in the magnesium vapor, so that the energy barrier of nucleation is reduced, the certain impurities are deposited in advance, and removal is achieved. According to the method, the method can be applied to industrial large-batch gas phase magnesium purification; the production efficiency is improved by an order of magnitude, and meanwhile, the Mn content in magnesium is reduced to 10 ppm or less, the Al content is reduced to 10 ppm or less, and the Si content is reduced to 20 ppm or less; and non-metal impurity elements such as F, Cl and S can be removed, so that the purity of a product is improved, and the purity of the obtained magnesium is 99.99% or above.

The invention belongs to the field of research of natural medicines and particularly relates to a traditional Chinese medicine compound gel suppository for contraception and a preparation method thereof. The effective components of the suppository provided by the invention are lightyellow sophora roots and Chinese pulsatilla roots, and the mass ratio of the lightyellow sophora roots to the Chinesepulsatilla roots is 3:1; and the suppository also comprises Carbomer, beta-cyclodextrin, glycerol, sodium hydroxide, ethanol and distilled water. The preparation method comprises the following steps:drying the lightyellow sophora roots and the Chinese pulsatilla roots according to the ratio, then performing reflux extraction, performing rotary evaporateion and concentration on the extracting solution, and metering the volume of the distilled water to obtain a mother solution for later use, wherein each 100ml of the mother solution contains 2g of crude medicines; and mixing the mother solution with ethanol and glycerol to obtain a mixture, then mixing the mixture with a carbomer solution in which beta-cyclodextrin is added, performing uniform mixing, then performing injection molding andcooling, eliminating the overflowing part, and performing mold release to obtain the suppository. The suppository provided by the invention has a good contraception effect, also has a lubrication function, and is safe and effective.