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1923results about How to "No toxic side effects" patented technology

Process for preparing cross-linked sodium hyaluronate microspheres capable of being adopted as emboliaztion agent by adopting sodium hyaluronate as raw material

The present invention provides a process for preparing cross-linked sodium hyaluronate microspheres capable of being adopted as an emboliaztion agent by adopting sodium hyaluronate as a raw material. The process comprises the following steps: preparing a sodium hyaluronate alkaline solution gel with a concentration of 10-30% g/ml; adding the sodium hyaluronate alkaline solution gel to an emulsifier-containing oil phase, and carrying out high speed emulsification through a shearing machine, wherein an emulsification speed is 500-2000 rpm, and a time is 10-20 min; adding a certain amount of a cross-linking agent, stirring for 4-6 h at a room temperature, carrying out a cross-linking reaction, and standing overnight after completing the reaction, wherein a mass percentage of the cross-linking agent in the oil phase is 0.2-2%; and adopting a water-soluble organic solvent to wash to remove the oil phase remained on the surface of the microspheres, and finally drying to obtain the cross-linked sodium hyaluronate microspheres. According to the present invention, the preparation process is simple; and the size of the obtained microspheres is suitable for routine blood vessel emboliaztion, and the obtained microspheres have characteristics of controllable particle size, good microsphere shape, easy screening, elasticity, expandibility, no toxic-side effect on human body, good biocompatibility, good biodegradability, and ensured clinical safety.
Owner:HANGZHOU SINGCLEAN MEDICAL PROD

Polyhydroxyl polymer embolized microsphere and preparation process thereof

The invention relates to a polyhydroxyl polymer embolized microsphere, which is formed by cross-linking polymerization of biocompatible functional macromolecules. The embolized microsphere is characterized in that the functional macromolecule comprises a polymer, wherein at least two acetal structures containing acrylic acid or derivative radicals thereof connected on the main chain or at least two crosslinkable micro-molecules which are connected in a covalent bond mode and have acrylic acid or derivative structures thereof; the acetal structures or crosslinkable micro-molecules can form a hydrogel unsaturated functional group through free radical polymerization crosslinking; a functional group by using organic carboxylate as a negative charge carrier is contained inside the microsphere. The invention also provides a preparation process of the polyhydroxyl polymer embolized microsphere. The embolized microsphere has excellent biocompatibility and stability, large elastic stretching rate and recoverability, is uniform and controllable in granularity, excellent in dispersion, simple in use and operation and strong in targeting property, has excellent adsorption capability to bioactive substances, and can be used for various minimally invasive treatment.
Owner:SUZHOU HENGRUI CALLISYN BIOLOGICAL MEDICINE TECH CO LTD

Method for extracting germanium from high-impurity low-grade complex zinc oxide powder

The invention provides a method for extracting germanium from high-impurity low-grade complex zinc oxide powder, and belongs to the technical field of hydrometallurgical processes. The method comprises the following steps of: under the process conditions that the PH value is 0.5 to 1.5 and the temperature is 55 to 75 DEG C, adding sulfite into aqueous solution of zinc sulfate which contains 8,000to 15,000mg/L iron, 300 to 1,000mg/L Fe<3>, and 30 to 135mg/L germanium so as to convert Fe<3> into Fe<2>, complexing and precipitating the germanium by adopting tannic acid to ensure that the germanium in the aqueous solution of zinc sulfate is subjected to a phase change reaction to form [GeO(C75H52O46)2<2>], pretreating, and calcining in a calcining kiln to obtain a germanium concentrate with the germanium content of between 8 and 22.36 percent which is used for producing germanium series products; and removing iron from solution of zinc sulfate obtained after the separation, and feeding into the conventional electrolytic zinc production system to recover valuable metals such as zinc, cadmium, indium and the like. By the method, the interference of the Fe<3> to a multi-metal recovery system can be effectively avoided, the production cost is reduced, and the smooth production process flow is ensured. The method has great significance for comprehensively recovering and recycling the valuable metals in low-grade high-impurity complex zinc oxide raw materials.
Owner:NANHUA MAOSEN REGENERATION TECH CO LTD

Method for constructing pasture, beef cattle and vegetable circular agriculture system in subtropical hilly area

The invention discloses a method for constructing a pasture, beef cattle and vegetable circular agriculture system in a subtropical hilly area. The method includes the following steps: A, selecting a pasture and corn field, wherein the pasture and corn field needs to be dry land with a low underground water level; B, growing pasture and corn; C, building a cattle shed and a cattle activity field, wherein the cattle shed is a double-row cattle shed; D, building a fluid fertilizer pond and a solid fertilizer pond below the cattle shed and the cattle activity field, and building a portable house on the fluid fertilizer pond and the solid fertilizer pond; E, building a cattle feeds ensiling pond, wherein the length and the width of the cattle feeds ensiling pond are equal; F, building a work room; G, breading beef cattle; H, growing vegetables, wherein the area of a vegetable field is determined by the number of the cattle, chemical fertilizer is not applied, and all the produced vegetables are high-quality organic vegetables. The method has the advantages that the agriculture system can be effectively prevented from discharging harmful and toxic substances to the outside, operation cost is low, yields are high, product quality is high, good economic benefits are achieved, and agricultural environmental protection is facilitated.
Owner:INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI

Prebiotic preparation pig feed and preparation method of prebiotic preparation pig feed

ActiveCN102771660AIncreased pig gut floraIncrease vitamin synthesisAnimal feeding stuffChinese herbsDigestion
The invention discloses prebiotic preparation pig feed and a preparation method of the prebiotic preparation pig feed. The prebiotic preparation pig feed is characterized by consisting of the following ingredients in parts by weight: 50 to 60 parts of corn, 3 to 8 parts of grass meal, 2 to 3 parts of corn protein powder, 1 to 1.5 parts of fish meal, 0.10 to 0.20 parts of lysine, 5 to 10 parts of fermented bean pulp, 3.0 to 5.0 parts of yeast powder, 1.0 to 3.0 parts of bone powder, 0.02 to 0.03 parts of copper sulfate, 0.01 to 0.02 parts of ferrous sulfate, 0.10 to 0.20 parts of methionine, 0.3 to 0.5 parts of common salt, 0.10 to 0.15 parts of choline, 0.1 to 0.2 parts of green tea powder, 2 to 3 parts of prebiotic preparations, 0.005 to 0.01 parts of multivitamin, 0.002 to 0.004 parts of organic selenium, 0.4 to 0.6 parts of premix materials and 3 to 5 parts of traditional Chinese herbal medicine. The prebiotic preparation pig feed does not contain any antibiotics, but contains traditional Chinese herbal medicine ingredients, the effects of invigorating the stomach to help digestion, clearing away heat and toxic materials and the like are realized, and endotoxin of pigs can be favorably eliminated, so the pigs can maintain good growth state, the pig diseases are prevented, the growth speed is high, and the feed conversion rate is improved. Because various traditional medicine ingredients are all common use medicine for people, no toxic or side effect exists, meanwhile, the pork quality can be improved, and the pork is more suitable for being eaten by people.
Owner:茂名正邦饲料有限公司

Traditional Chinese medicine composition for treating allergic rhinitis

The invention relates to a traditional Chinese medicine composition for treating allergic rhinitis, which is prepared from the following traditional Chinese medicine raw materials in parts by weight: 10-40 parts of radix astragali, 10-30 parts of angelica, 10-40 parts of dangshen, 10-40 parts of rhizoma atractylodis macrocephalae, 5-20 parts of herba schizonepetae, 5-20 parts of radix sileris, 5-20 parts of cicada ecdysis, 5-20 parts of muscardine silkworm, 10-40 parts of radix paeoniae alba, 5-25 parts of cassia twig, 5-20 parts of magnolia flower, 5-15 parts of cocklebur fruit, 10-30 parts of radix angelicae, 5-25 parts of Baikal skullcap root, 5-25 parts of radix bupleuri, 5-20 parts of balloonflower, 5-20 parts of hemlock parsley, 5-20 parts of notopterygium root, 5-20 parts of mint and 5-15 parts of licorice. The traditional Chinese medicine composition provided by the invention has the effects of clearing away heat and toxic material, promoting the dispersing function of the lung, dredging acupoints, relieving exterior syndrome, dispelling cold, dispersing pathogenic wind and removing dampness, and has obvious curative effect and reliable action on treating allergic rhinitis. The traditional Chinese medicine composition provided by the invention has the advantages of wide medicine sources, simple preparation process, mild drug properties and no toxic or side effect.
Owner:刘姣

Traditional Chinese medicine composition for treating chronic eczema

The invention relates to a traditional Chinese medicine composition for treating chronic eczema. The traditional Chinese medicine composition comprises the following traditional Chinese medicine materials in parts by weight: 20-40 parts of dried rehamnnia roots, 5-20 parts of tree peony barks, 5-20 parts of roots of common peony, 5-20 parts of lithospermum, 10-30 parts of rheum officinale, 5-25 parts of radix sophorae flavescentis, 5-20 parts of golden cypress, 5-20 parts of medicinal cyathula roots, 5-20 parts of broom cypress fruits, 5-25 parts of cortex dictamni, 5-20 parts of elephantopus scaber, 20-40 parts of honeysuckles, 5-25 parts of fructus forsythiae, 5-20 parts of stiff silkworms, 5-20 parts of cicada slough, 5-20 parts of Chinese parsnip roots, 10-30 parts of Chinese angelica, 20-40 parts of rhizoma smilacis glabrae, 5-25 parts of evenlobed yam rhizome, 10-30 parts of coix seeds, 20-40 parts of roots of red-rooted salvia, 10-30 parts of ligusticum wallichii, 5-20 parts of peach kernels, 5-20 parts of red flowers, 5-25 parts of schizonepeta, 10-30 parts of polygonum aviculare and 5-15 parts of liquorices. The traditional Chinese medicine composition disclosed by the invention has the effects of invigorating spleen to eliminate dampness, promoting eruption to remove skin ulcers, removing toxic materials by cooling blood, and dispelling wind and arresting itching, and has remarkable curative effect on chronic eczema and achieves reliable action.
Owner:李永全

Traditional Chinese medicine composition for treating chronic pharyngitis

The invention relates to a traditional Chinese medicine composition for treating chronic pharyngitis. The composition is prepared from the following traditional Chinese medicine raw materials in parts by weight: 20-40 parts of honeysuckle, 10-20 parts of weeping forsythia capsule, 10-20 parts of baical skullcap root, 10-20 parts of radix bupleuri, 20-40 parts of heartleaf houttuynia herb, 5-15 parts of platycodon root, 5-15 parts of fineleaf schizonepeta herb, 5-15 parts of divaricate saposhnikovia root, 5-15 parts of cicada slough, 5-15 parts of tendrilleaf fritillary bulb, 5-15 parts of stiff silkworm, 5-15 parts of mint, 5-15 parts of common hogfenneI root, 5-15 parts of almonds, 6-18 parts of common coltsfoot, 6-18 parts of aster, 5-15 parts of radix stemonae, 5-15 parts of magnolia flower, 20-40 parts of Sichuan lovage rhizome, 3-9 parts of liquorice and 20-40 parts of dahurian angelica root. The traditional Chinese medicine composition has the functions of clearing away heat and toxic materials, removing stasis to eliminate swelling, ventilating the lung and resolving phlegm and nourishing blood and engendering liquid, has obvious curative effects on chronic pharyngitis and reliable functions, is wide in component sources and simple and convenient to prepare and has no toxic or side effect.
Owner:柳晖
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