123 results about "Biological Absorption" patented technology

The invention relates to compound millimicron fibrous membrane material of cellulose and cellulose matrix which can perform the biological degradation and the biological absorption and a preparation method thereof and an industry and medical purpose, and belongs to the biological macro-molecule non woven fabric material field which can perform the biological degradation and the biological absorption. Electrostatic spinning equipment is used to obtain the fibrous membrane material which can perform the biological degradation and the biological absorption, the weight of the cellulose is taken as basic reference, the component of the material comprises cellulose more than 0 and less than or equal to 100 weight parts, other biomacromolecule more than and equal to 0 and less than 100 weight parts, 0 to 10 weight parts of curative drug or 0 to 50 weight parts of inorganic catalyzer and / or 0 to 50 weight parts of inorganic strengthening agent. The material of the invention has good biological compatibility, biological degradation property and degradation absorptivity, and can be used for haemostasia material, wound cladding material, organization engineering supporting rack material, the transportation and release of medicine, artificial skin and blood vessel, and postoperation anti blocking material, beauty material and catalyzer carrier, filtering membrane and radiation protection material and so on.

The invention discloses small molecule polypeptide Ca-chelate of fishbone, which belongs to the field of functional food or additive. The method for preparing the small molecule polypeptide Ca-chelate of the fishbone comprises the following steps: boiling the fishbone at high temperature and high pressure; pulping to obtain the fishbone paste; utilizing the compound protease to execute enzymolysis; centrifuging to obtain the liquid supernatant and the sediment; filtering the liquid supernatant to obtain the small molecule polypeptide liquid of the fishbone; executing the composite acid acidification through citric acid and lactic acid for the sediment so as to obtain the fishbone calcium liquid; mixing the small molecule polypeptide liquid of the fishbone with the fishbone calcium liquid; executing the chelation at 40-50 degrees centigrade while the pH value is 7.5-8.5; and drying to obtain the small molecule polypeptide Ca-chelate of the fishbone. The invention has high Ca-chelate rate which reaches over 90%, and has high biological absorption rate of the calcium which reaches over 70%. The invention has no side effects, has good flavor, can be directly absorbed from intestinal mucosa after being eaten, solves the problems that the solubility of the traditional calcium source is bad, the absorption rate is low and the side effect is large, and solves the problem of producing calculi. In addition, the invention has a simple preparation method and low cost.

Treatments and devices for generating and using interleukin-1 receptor antagonist (IL-1ra). An implantable device is loaded with adipose tissue and/or white blood cells and inserted into an inflammation site in a patient to produce interleukin-1 receptor antagonist in vivo. The implantable device has an enclosed or substantially enclosed body that defines an internal space. At least a portion of the body comprises a first bioresorbable material and a second bioresorbable material is within the internal space along with one or more voids. The second bioresorbable material includes an activation surface to activate adipose tissue and/or white blood cells loaded into the device to produce IL-1ra.

The invention relates to fish scale protein peptide calcium chelate, a microcapsule calcium supplement of the chelate and preparation methods thereof. In the invention, calcium chloride and the enzymatic hydrolysate of fish scale protein are chelated, thus improving the solubility of the calcium salt under a subalkaline condition in the intestinal tracts and improving the absorption utilization ratio of calcium, and the preparation process is safe and pollution-free. In the invention, an appropriate wall material is also adopted for microencapsulating the fish scale protein peptide calcium chelate to prepare the microcapsule calcium supplement of the fish scale protein peptide calcium chelate; the calcium supplement can cover up the off flavor of the calcium salt and can gradually release Ca<2+> under the subalkaline condition in the intestinal tracts, and the biological absorption utilization ratio of the Ca<2+> is high without toxic side effect; and due to the fish scale protein peptide, the fish scale protein peptide calcium chelate not only can prevent and treat osteoporosis, but also has the physiological functions of resisting oxidation, adjusting immunity, reducing blood pressure and the like.

The present invention relates to the use of multiple different light emitting molecules that emit different and detectable emission signals to provide systems and methods to detect different target products in a single assay sample, wherein the different light emitting molecules are positioned an optimal distance from metallic particles thereby enhancing emissions. Preferably, the systems and methods further comprise use of either microwave or sonic energy to increase binding reactions, timing of such reactions within the assay sample and reduce background non-specific biological absorption.

The present invention relates to a sewage treatment combined wet land system and its sewage treatment process. Said sewage treatment combined wet land system includes biological regulation pool, aerobic degradation and microbial culture pool, artificial underflow wet land unit and artificial surface flow wet land unit, and its sewage treatment process includes the measures of natural precipitation, biological absorption, degradation and conversion, aeration reaction and others so as to make the sewage obtain purification treatment.

The invention belongs to the surface modification polymer superfine fiber film field, in particular to a polyester superfine fiber film material with surface graft modification, biological degradation and biological absorption, a chemical surface modification method thereof, a device for preparing the film and an application of the film in biomedicine. In the invention, non-woven fabric materials composed by fibers with the diameter of between tens of nanometers to thousands of nanometers are prepared by utilizing an electrostatic spinning process, and the non-woven fabric materials are combined with substrate materials by the polymerization of functional polymers on material surfaces in a covalent bond mode, and a plurality of functional groups are introduced on surfaces of superfine fiber film materials, which improves the hydrophilic performance and the hydrophobic performance of material surfaces and improves the biocompatibility of materials with tissue cells. The materials prepared by the invention can be applied to the production of surgical suture materials, fixing materials for plastic surgery, drug-controlled release materials and other macromolecule implants materials; and the surface modification method of the invention can be applied to the surface modification of micro channels of microfluidic devices and can better keep features of channels.

The invention provides a controlled-release pharmaceutical preparation based on sulfoalkyl ether cyclodextrin (SAE-CD). The solid pharmaceutical formulations of the present invention consist of a core comprising one or more SAE-CD derivatives, optionally a release rate modifying agent, a therapeutic agent, and optionally a release rate modifying coating surrounding the core. Some therapeutic agents were not complexed with SAE-CD. The formulations of the present invention are easier to prepare than other SAE-CD based formulations, but still provide similar or better potency. SAE-CD is used to increase the bioavailability and/or bioabsorption rate of therapeutic agents. Also disclosed are multilayer dosage forms, osmotic pumps, coated and uncoated tablets, minitablets, pills, micropellets, granules, and powders.

The invention relates to a fiber compact double-layered composite film, which consists of two layers including a smooth compact film and a nano fiber film. The two films are combined tightly and cannot be separated. A preparation method of the fiber compact double-layered composite film includes mixing and dissolving polylactic-co-glycolic acid and polylactide-b-polyethylene glycol into N, N-dimethylformamide or acetone or mixture of the N, N- dimethylformamide and the acetone so as to obtain uniform polymer solution; then knifing the polymer solution on a roller or realizing electrostatic spinning on the roller and then drying the roller after heating the roller so as to obtain the compact film layer; and finally realizing electrostatic spinning on the compact film to obtain a fiber film layer, and accordingly obtaining the fiber compact double-layered composite film. The fiber compact double-layered composite film has excellent biocompatibility, biodegradation and biological absorption, and simultaneously has the advantages of light weight and softness. Besides, mechanical property and degradation period of the fiber compact double-layered composite film can be flexibly adjusted according to service needs.

The invention discloses a method for preparing magnetic chitosan nano particles and processing heavy metal wastewater, belonging to the technical field of material preparation. The method disclosed by the invention comprises the following steps: firstly, weighing ferrous salt and ferric salt as raw materials for preparing a magnetic material, wherein the raw materials are dispersed in a chitosan acetic acid solution after being dissolved; and dropping the mixed liquor into alkali liquor through an injector to obtain the magnetic chitosan particles, wherein the prepared magnetic chitosan particles are provided with a chitosan-nano ferroferric oxide core shell structure and a nano biological absorption material with excellent absorption performance. The method disclosed by the invention is simple and easy to operate. The nano biological absorption material prepared by the method disclosed by the invention is used for processing the heavy metal wastewater.

The invention discloses a method of generating hydrogen for twice at the same time that the waste water containing cadmium heavy metal is treated by harmless biological absorption by using an algae and fungi synergistic system, and belongs to the technical field of the environmental energy source. The method is mainly characterized in that algae cell wall and fungi cell wall are cooperated to absorb the cadmium; at the same time of removing the cadmium, Chlamydomonas Reinhardtii can generate hydrogen by using the characteristic that the stress effect of the heavy metal of the Chlamydomonas Reinhardtii is similar to the deficiency effect of sulfur element during cultivation; furthermore, butyric acid clostridium is used to ferment the biomass cumulated by the photosynthesis of the Chlamydomonas Reinhardtii to re-generate hydrogen; the fungi used during cadmium absorption and hydrogen generation is treated in an immobilized way. The method has high efficiency, is easy for downstream treatment, can get clean water and a great deal of hydrogen finally with qualified cadmium concentration, and can be widely used for the clean treatment and energy recovery utilization to industrial waste water containing the cadmium.

The invention discloses a special marine dietary food for patients with liver deficiency. The dietary food is prepared from the food-borne marine oligopeptides as the main raw materials, and marine bioactive polysaccharide, seaweed powder, nutritional amino acids, oligosaccharides, nutrients, vitamins and minerals by mixing. The special marine dietary food can be made into powder or particles anddissolved by warm water for use. The special marine dietary food can be easily dissolved, and has the greatest biological absorption and maximum bioavailability for human body. The special marine dietary food can provide body with marine protein with high-quality, activity factors and nutrients, and supplement essential vitamins and minerals for human body, and can be helpful to improve the nutritional condition of patients with liver deficiency. Through the coordination of the food-borne marine oligopeptides, the biological active ingredients in the marine bioactive polysaccharides in, the seaweed powder, the nutritional amino acids and other factors together, the special marine dietary food can protect human livers, and improve the immunity to prevent the occurrence of liver disease. The food is suitable for the patients with liver deficiency.

The invention provides a water quality information calculating device and a water quality information calculating method, which are used for simulated calculation of the concentration of pollutants in water pollution accidents. The water quality information calculating device comprises an information input module, a calculating module and a display module, wherein the information input module is used for inputting information reflecting the concentration of pollutants on the cross section of an upstream river; the calculating module is used for calculating the concentration of pollutants polluting the water quality of the cross section of a downstream river by means of a two-dimensional water quality simulation system dynamics model according to the input information of the information input module; and the display module is used for displaying the information inputted by the information input module and calculated results outputted by the calculating module. The water quality information calculating device has the advantages that system dynamics is applied to dynamic simulation research on water quality variation of the water pollution accidents, the two-dimensional water quality simulation system dynamics model is established, dynamic analogue simulation is performed for concentration variation of the pollutants in the rivers caused by convection, diffusion, physical, chemical and biological processes such as attenuation and the like resulting from chemical reaction and biological absorption, and then the concentration of the pollutants on the downstream cross section can be predicated.

The invention provides an integrated treatment method and apparatus of odor and peculiar-smell gas. The integrated treatment apparatus comprises a suspended biological absorption area, a biological filtering adsorption area and a composite active carbon adsorption area; the suspended biological absorption area receives odor and peculiar-smell gas, the odor and peculiar-smell gas enters an aerationmain pipe and an aeration branch pipe to be uniformly aerated, ammonia pollutants and sulfides in the odor and peculiar-smell gas are degraded by a mixed solution of ammonia oxidizing bacteria and nitrous acid oxidizing bacteria microorganisms; the odor and peculiar-smell gas is suspended and absorbed by virtue of a strengthened washing pump; in the biological filtering adsorption area, the substances such as hydrogen sulfide in the odor and peculiar-smell gas are degraded by virtue of heterotrophic bacteria and fungi inoculated on composite biological filler; and the composite active carbonadsorption area comprises a granular active carbon adsorption area and a honeycomb active carbon adsorption area. By adopting the integrated treatment apparatus, the odor gas is continuously treated in multiple levels in a single device to reduce the loss of air pressure and the energy consumption of the device, so that the floor occupation area of the device is saved, and the operation and maintenance expense can be reduced.

The invention discloses a fiber tube reinforced hollow fiber composite biofilm as well as a preparation method and application thereof. According to the invention, a coating-immersion precipitation phase transformation method is adopted for utilizing a composite film spinning device to coat a braided tube by a casting solution liquid to prepare the fiber tube reinforced hollow fiber composite biofilm with high strength and high flux. The product provided by the invention has a large specific surface area, in particular, the specific surface area of the oxygen permeable film can be as high as 5108 m<2>/m<3>; the film is used as a carrier, a sufficient adhesion area can be provided for growth of microorganisms in a smaller space, so that a concentration of the microorganisms in the unit space is greatly improved, the treatment capacity per unit volume can be improved, and the aeration efficiency is high; the film has the characteristics of selective ventilation, and the oxygen absorptioncapacity is multiple times that of conventional equipment; and the product has the high-efficiency oxygen separation characteristic, so that the microorganisms are attached to the surface of the biofilm to form a biotic community to naturally form a stable ecosystem, the efficiency of biological absorption of water pollutants is accelerated, and the black odor problem can be thoroughly solved.

The invention belongs to the technical field of biological treatment of waste gas and relates to a spherical non-woven fabric filling started tower type anaerobic ammonia oxidation reactor. Filling is of an orange-segment-shape-like structure formed by uniformly arraying a framework, formed by modifying an original polyhedron hollow sphere, and a non-woven fabric. The filling is stacked in an absorption tower and is used for carrying out film formation through spraying anaerobic ammonia oxidation bacterium liquid; artificially synthesized ammonia-nitrogen wastewater is sprayed at the upper part; nitric oxide enters from the lower part of the reactor and is in countercurrent contact with liquid to be removed. The spherical non-woven fabric filling started tower type anaerobic ammonia oxidation reactor has the effects and benefits that a liquid film is easily formed by the spherical filling and absorption of gas is facilitated; the non-woven fabric on the filling has a large specific surface area and a coarse surface; the adhesion, growth and reproduction of anaerobic ammonia oxidation bacteria are facilitated; the removing efficiency of the nitric oxide is easy to improve; compared with traditional biological denitration, the reactor is environmentally friendly and has low operation cost; a sustainable treatment technology combining flue gas denitration and sewage denitrification is provided and has relatively good potential application prospect.

The invention relates to a coupling method for treating wastewater containing heavy metal ions by algae and preparing biomass fuel from the algae. The coupling method comprises: introducing the wastewater into an algae pond, and removing heavy metal by the algae through biological adsorption and biological absorption, wherein an algae cell wall contains a lot of polysaccharides and proteins and is combined with the heavy metal; after finishing wastewater treatment, collecting the used algae through a fishing and filtering method; carrying out airing treatment; putting the algae into a vacuum reactor and carrying out dry distillation; heating to 400 DEG C to 600 DEG C and naturally cooling to room temperature; cooling a gas product, generated by pyrolyzation, through a condensation device, and collecting to obtain a liquid product; discharging uncondensed gas through an exhausting pipe; after centrifuging and separating the liquid product, obtaining a water-phase product and biomass oil, wherein gas is a fuel gas product, liquid is fuel oil and residues in the reactor are carbonized algae residues and heavy metal grains conglobated at high temperature; collecting reactant residues and calcining to obtain metal powder. The total resource utilization efficiency is improved.

The invention relates to a partially covered stent used for treating bifurcation lesion coronary perforation and provided with a biological absorption film. The partially covered stent comprises a stent body composed of a tubular inner layer stent and a tubular outer layer stent, wherein the tubular inner layer stent and the tubular outer layer have identical length concentric line engraved nettedstructures, a tubular covering film is clamped between the inner layer stent and the outer layer stent, and the partially covered stent is characterized in that one end of the covering film is flushwith the stent body, and the length of the covering film accounts for 30-50% that of the stent body; the covering film is the biological absorption film; the biological absorption film is a poly-DL-lactic acid film. The partially covered stent has the advantages of being capable of covering a blood vessel perforation part to form a complete blood flow channel, effectively preventing closing and plugging of side branches, meanwhile easily realizing endothelialization in a stent body, and effectively reducing forming of thrombi.

There is provided an elastin molded article having flexibility, a biological absorption property and tear strength which is practically suturable by using a fiber structure comprising aliphatic polyester fibers having an average fiber diameter of 0.05 to 50 μm as a supporting base material. The elastin molded article is useful as a raw material for a tube or artificial blood vessel to be implanted in a body that has a biological absorption property and has tear strength and flexibility which allow the tube or artificial blood vessel to endure suture at the time of operation or the like.

The invention discloses a nanogold/lysine/oxidized regenerated cellulose composite hemostatic material and a preparation method thereof, relates to a hemostatic material and a preparation method thereof, and aims at solving the problems of obstruction to the biological absorption of a hemostatic material and slight improvement of the hemostatic performance due to a fact that the skin of a mammal is irritant to other body cells at a contact position and a large whitish granulation lump is formed at a use position in the use process of an existing oxidized regenerated cellulose modified material serving as the hemostatic material. The nanogold/lysine/oxidized regenerated cellulose composite hemostatic material is prepared from the nanogold and the oxidized regenerated cellulose on the surface of which the lysine is grafted; the preparation method of the hemostatic material comprises the steps of firstly, chemically grafting the lysine to the oxidized regenerated cellulose, secondly, preparing the aqueous dispersion of the nanogold, and 3, carrying out self-assembling of the nanogold, thereby obtaining the nanogold/lysine/oxidized regenerated cellulose composite hemostatic material. The invention successfully provides the nanogold/lysine/oxidized regenerated cellulose composite hemostatic material and the preparation method thereof.

The production process of biological absorbable hemostatic sponge includes the following steps: 1) removing fat and meat layer from pork sin; 2). soaking the pork skin in lime water with pH 13-pH 16 for 15-30 days; 3). cleaning the soaked porrk skin to make its pH value to pH 6.0-pH6.5; 4). steaming and boiling the cleaned pork skin to obtain the colloidal form; 5). using pure clean distilled water to regulate concentration of colloidal liquor to 2%-5%; 6). microfiltering the above-mentioned colloidal liquor to remove impurity; and 7). spraying, forming and drying so as to obtain the inventedhemostatic sponge which is non-toxic, sterile, has no side effect for human body, has good biological compatibility and it is easily absorbed by human body.