116results about How to "Promote swelling" patented technology

The invention discloses a modified hollow fiber membrane which is composed of a separation layer, a supporting layer and a macroporous layer, the pore diameters of the separation layer, the supporting layer and the macroporous layer are sequentially increased, and a preparation method of the modified hollow fiber membrane comprises the following steps: weighing polyether sulfone / polysulfone, a pore-foaming agent, a solvent, an organic macromolecular additive and an inorganic salt additive according to the proportion to prepare a spinning solution; stirring and dissolving at 80-180 DEG C, centrifugally filtering, defoaming at 40-80 DEG C to obtain a spinning solution, carrying out coagulating bath on the spinning solution, molding, cleaning, stretching and drying to obtain the modified hollow fiber membrane. According to the preparation method, micromolecular inorganic salt pore-forming agents with different concentrations are added into a spinning solution and a coagulating bath, and interaction among inorganic salt, a polymer and a solvent is utilized, so that an inner skin layer structure and an outer skin layer structure of the hollow fiber membrane are adjusted, and a unique three-layer structure of a separation layer, a supporting layer and a macroporous layer is formed; the hydrophilic performance is stable, and the clearance on middle molecules is improved.

The invention discloses a method for rapidly determining the swelling property of pulp for lyocell fibers and a centrifugal device, and relates to the field of pulping and papermaking and the field of spinning. The swelling property of the pulp for the lyocell fiber is represented by measuring the ratio of the mass of an NMMO solution retained in the pulp to the absolute dry mass of the NMMO solution after a low-concentration NMMO / dissolving pulp mixed solution is subjected to centrifugal treatment under a certain swelling condition under a certain centrifugal condition. The detection method provided by the invention is rapid, efficient and stable, the NMMO swelling properties of the dissolving pulp for different lyocell fibers can be compared by using a simple centrifugal device, the difficulty degree of the dissolving pulp for absorbing the NMMO solution to the maximum extent is reflected macroscopically, and the swelling property of the pulp in a lyocell fiber production dry process is effectively evaluated.

The invention discloses a preparation method of efficient antioxidant sturgeon protein peptide. The preparation method comprises the following steps: S1, extracting a sturgeon skin crude protein solution; s2, extracting sturgeon swimming bladder crude protein; s3, extracting crude protein liquid of the sturgeon meat; s4, performing mixed enzymolysis; and S5, carrying out enzyme deactivation treatment on the obtained enzymatic hydrolysate to obtain enzymatic hydrolysate, and sequentially carrying out ultrafiltration and vacuum drying on the enzymatic hydrolysate to obtain the efficient antioxidant sturgeon protein peptide. Proteins extracted from different parts of sturgeons are mixed according to a specific proportion and then subjected to enzymolysis, the added neutral protease and papain can achieve a synergistic effect, protein is hydrolyzed more comprehensively, small molecule peptides with specific functions are generated, meanwhile, glutathione added during enzymolysis can protect sulfydryl of enzymes, and the enzymolysis effect of the sturgeons is improved. The enzyme activity is maintained, so that the finally obtained sturgeon protein peptide has good oxidation resistance.

The invention relates to the technical field of hydrogel, in particular to attapulgite-based hydrogel and a preparation method thereof. The hydrogel is prepared by polymerizing an alkenyl monomer and modified attapulgite, and the modified attapulgite is obtained by modifying attapulgite with branched acrylate quaternary ammonium salt. The hydrogel shows excellent water absorption, water retention and mechanical properties. The water absorption rate reaches up to 292%, the water retention capacity is excellent in the low-humidity environment, water can be kept for a long time in the drought or low-humidity environment, the continuous water supply capacity is remarkably improved, and the water retention agent is suitable for the fields of agriculture, soil improvement and ecological restoration.

The preparation method comprises the following steps: adding polytetrahydrofuran ether glycol, polycaprolactone glycol, isocyanate and dibutyltin dilaurate into a flask, respectively inserting a thermometer, a glass plug, a stirring paddle and a nitrogen tube into a flask opening, heating to 80-85 DEG C, reacting for 1-2 hours, adding a charring agent into the flask, reacting for 1.5-2.5 hours, and cooling to room temperature to obtain the flame-retardant washable melt-drop-resistant polyurethane coating. A polyurethane prepolymer is obtained; cooling the polyurethane prepolymer to 45-55 DEG C, adding 2, 2-dimethylolpropionic acid, reacting for 1-2 hours, adding the porous carbon layer modifier and the glucose modifier, reacting for 1-2 hours at 65-70 DEG C, adding triethylamine, and reacting for 1-2 hours; and cooling to normal temperature, adding water, stirring and reacting for 1-2 hours, and adjusting the pH value of the system to 7-8 to obtain the flame-retardant washable melt-drop-resistant water-based polyurethane coating which has good flame-retardant, washable and melt-drop-resistant properties and the like.

The invention discloses a preparation method and application of a marine high-molecular polysaccharide hydrogel wound dressing. The hydrogel is formed by cross-linking the marine polysaccharide composition and the cross-linking agent, and the gelation time is short and is about 15 seconds; pores are uniform and moderate; the self-healing property, the adhesion property and the swelling property are high; the antibacterial effect is strong, and the inhibition rates on escherichia coli and staphylococcus aureus are both higher than 90%; skin irritation and skin allergy are avoided, and the biological safety is high; hemostasis can be rapidly carried out within 10s, and the bleeding amount is obviously reduced; the hydrogel dressing can rapidly shrink and scab a wound surface, has the effect of promoting wound healing, and has the effects of stopping bleeding and promoting wound healing which are obviously superior to those of commercially available hydrogel dressings (German Hydrosorb Gel) (Plt; 0.05), and is a safe and effective high-performance wound dressing. In addition, the hydrogel is simple in formula and high in industrialization prospect, is expected to be developed into novel wound dressings and medical instruments, and breaks through the trapping that domestic hydrogel dressings are mostly dependent on import.

The invention belongs to the technical field of biomedical materials, and particularly relates to a 3D printing hydrogel stent with biological activity and a preparation method and application thereof. The preparation method provided by the invention comprises the following steps: (1) extracting a mesenchymal stem cell exosome; (2) preparing 3D printing ink; (3) designing a 3D printing hydrogel stent model; and (4) 3D printing is conducted. The hydrogel scaffold obtained by the preparation method disclosed by the invention has relatively good mechanical property, moderate swelling property and relatively high biological activity.

The invention belongs to the technical field of biomedical materials, and discloses an intervertebral disc repair material based on an intervertebral disc degeneration staged treatment strategy as well as a preparation method and application of the intervertebral disc repair material. The intervertebral disc repair material comprises a sandwich-structure dual-electroactive stent and composite hydrogel attached to the dual-electroactive stent, the double-electroactive stent with the sandwich structure comprises a conductive porous stent with a conductive through pore channel structure and piezoelectric fiber films positioned on the upper side and the lower side of the conductive porous stent; the composite hydrogel comprises hydrogel and antioxidant nano enzyme uniformly dispersed in the hydrogel; the antioxidant nano-enzyme is a core-shell structure nano-particle with Co-Ni bimetallic oxide as a core and polydopamine as a shell. The degeneration early intervertebral disc is repaired through the antioxidant and anti-inflammatory nano-enzyme, the defective intervertebral disc after resection is repaired through the double electroactive scaffolds, and the electroactive scaffold enhanced composite hydrogel can replace the degeneration later intervertebral disc, so that corresponding treatment is achieved for different stages of intervertebral disc degeneration.

The present invention provides a slow-release fertilizer composite hydrogel and a preparation method and application thereof, belonging to the technical field of slow-release fertilizers. The slow-release fertilizer composite hydrogel comprises the following raw materials in parts by weight: 2 to 58 parts of lignocellulose nanofiber suspension, 0.05 to 0.15 parts of clinoptilolite, 5 to 15 parts of acrylic acid, 5 to 15 parts of acrylamide, 1 to 2 parts of initiator, 0.1 to 0.3 parts of cross-linking agent and 5 to 15 parts of urea. The present invention also provides a preparation method of the slow-release fertilizer composite hydrogel and its application in agricultural planting. The slow-release fertilizer composite hydrogel of the present invention has good overall stability, presents an obvious porous structure, has small internal pores and uniform pores, has good water absorption, swelling and water retention effects, has ideal controlled release performance and urea slow release effect, and can be well used in the planting of agricultural crops and forestry plants, as well as the ecological restoration of difficult sites in urban and rural areas.

The invention belongs to the technical field of medical materials, and particularly relates to high-strength dual-network self-healing hydrogel as well as a composition, a preparation method and application thereof. The composition for preparing the high-strength dual-network self-healing hydrogel comprises a composition A for constructing a first network system of the hydrogel and a composition B for constructing a second network system of the hydrogel, wherein the composition A comprises modified chitosan and modified hyaluronic acid, and the composition B comprises polyvinyl alcohol and sodium tetraborate; the volume ratio of the polyvinyl alcohol to the modified chitosan to the modified hyaluronic acid is (5-7): (5-7): 1; the concentration of the modified chitosan is 2-4 wt%, the concentration of the modified hyaluronic acid is 8-12 wt%, and the concentration of the polyvinyl alcohol is 18-22 wt%. The high-strength dual-network self-healing hydrogel prepared on the basis of the composition has relatively high mechanical performance and excellent self-healing performance, and also has excellent resilience performance, swelling performance, shape memory and ionic conduction behavior.

The invention discloses a polypropylene composite material and a preparation method thereof, belonging to the technical field of polymer materials. The product can greatly improve the solvent swelling resistance of the product through the synergistic effect of the combination of specific silane-modified nanocellulose and synthetic mica powder. At the same time, the product has excellent component dispersibility, the appearance will not be affected, and there is no obvious pitting or flow mark on the surface.

The invention belongs to the technical field of asphalt production, and discloses high-elasticity modified asphalt which comprises a matrix, a plasticizer and a stabilizer, the plasticizer is selected from at least one of dioctyl phthalate, diethyl sebacate, diethyl adipate, dioctyl adipate, alkyl sulfonate and furfural extract oil; the stabilizer is selected from at least one of sulfur, tetramethylthiuram disulfide, maleic anhydride and m-phenylenediamine, the swelling capacity of SBS in the asphalt is improved to a certain extent through the plasticizer, and meanwhile, the stabilizer is used for resisting oxidative denaturation of the asphalt in the long-term use process; in addition, the invention further discloses a preparation method of the high-elasticity modified asphalt.

The invention discloses a polyester blended fabric with anti-pilling performance and a preparation method of the polyester blended fabric, and belongs to the technical field of after-finishing of polyester blended fabrics. The problem that the anti-pilling performance of the polyester blended fabric is poor is solved. The polyester blended fabric is soaked in a polydopamine solution, so that charge distribution, roughness and surface area of the surface of the polyester fiber are increased, then fiber surface modification treatment is carried out in a solution containing sodium bicarbonate, urea and sodium chloride, molecular chains of the polyester fiber are swelled by utilizing the urea and the sodium chloride, and the polyester fiber is formed. The surface area of the polyester fiber is further increased, and the orientation degree is reduced, so that bicarbonate radical ions fully permeate into the polyester fiber, the bicarbonate radical ions react with the polyester fiber more easily, the glass transition temperature of the polyester fiber is reduced, the polyester fiber is partially hydrolyzed, and finally the strength of the polyester fiber is reduced, and the surface becomes rough; the anti-pilling performance of the polyester blended fabric is improved under the effects that the fiber strength is reduced and the friction coefficient is increased.

The invention discloses oxidized sodium alginate / polyvinyl alcohol fluorescent hydrogel capable of rapidly gelling as well as a preparation method and application of the oxidized sodium alginate / polyvinyl alcohol fluorescent hydrogel, and belongs to the technical field of hydrogel preparation. The preparation method provided by the invention comprises the following steps: adding sodium periodate into a sodium alginate aqueous solution for oxidation, dialyzing and drying to obtain oxidized sodium alginate; dissolving oxidized sodium alginate in water, adding aminophenylboronic acid and an activating agent, and reacting to obtain a phenylboronic acid-based oxidized sodium alginate solution; and mixing the phenylboronic acid-based oxidized sodium alginate solution with the polyvinyl alcohol solution, and stirring for 8-20 seconds to obtain the water treatment agent. The preparation method disclosed by the invention is simple and convenient, very rapid in gel forming, low in equipment cost and suitable for large-scale preparation; the prepared hydrogel is excellent in swelling property, and emits blue light under ultraviolet irradiation; meanwhile, the property is stable, the pH response and active oxygen response characteristics are achieved, self-healing can be achieved, and good application prospects are achieved in the fields of tissue repair and fluorescent falsification prevention.

The present invention provides a battery additive and a preparation method and application thereof, wherein the battery additive comprises porous latex particles having a rich pore structure and a large specific surface area and having good swelling performance. The battery additive is used for battery pole pieces, and can effectively improve the wettability and liquid absorption performance of the pole pieces, shorten the battery injection process time, and thus improve production capacity; at the same time, the battery additive has a large number of gaps to store electrolyte, significantly improves the liquid retention capacity of the pole pieces, enhances lithium ion conduction, and improves the cycle performance of the battery.

The invention discloses a polyester blended fabric with anti-pilling performance and a preparation method thereof, and belongs to the technical field of polyester blended fabric finishing. The invention solves the problem of poor anti-pilling performance of polyester blended fabrics. The invention immerses the polyester blended fabric in a polydopamine solution to increase the charge distribution, roughness and surface area of ​​the polyester fiber surface, and then performs fiber surface modification treatment in a solution containing sodium bicarbonate, urea and sodium chloride, and uses urea and sodium chloride to swell the polyester fiber molecular chain, further increase the surface area of ​​the polyester fiber and reduce the orientation degree, so that bicarbonate ions fully penetrate into the polyester fiber, making it easier for bicarbonate ions to react with the polyester fiber, reducing the glass transition temperature of the polyester fiber, partially hydrolyzing it, and finally reducing the strength of the polyester fiber and making the surface rough, thereby improving the anti-pilling performance of the polyester blended fabric under the effect of reducing the fiber strength and increasing the friction coefficient.

This invention relates to the field of traditional Chinese medicine (TCM) technology, and discloses a TCM composition for treating cachexia and its preparation method. The composition comprises five grains (a type of insect), Astragalus membranaceus, stir-fried Atractylodes macrocephala, Polygonatum sibiricum, Lycium barbarum, Ophiopogon japonicus, Citrus reticulata peel, Panax notoginseng, and Glycyrrhiza uralensis. Stir-fried Atractylodes macrocephala can be replaced with Poria cocos, Ophiopogon japonicus can be replaced with Polygonatum odoratum, and Citrus reticulata peel can be replaced with Amomum villosum. This formula is based on the principle of "strengthening the body's resistance, detoxifying and removing blood stasis," enhancing the effects of invigorating the spleen and stomach, promoting body fluid production and moistening dryness, while avoiding greasy and cloying substances that may hinder digestion. The preparation method involves cleaning, pulverizing, decocting, extracting, and drying the raw materials to obtain granules. This composition can be used to treat cachexia caused by various tumors such as lung cancer and liver cancer. Animal experiments have verified that it can significantly increase patients' food intake, improve cancer-related fatigue, inhibit tumor growth, alleviate muscle atrophy and splenomegaly, regulate blood routine, and improve anemia and immune function, providing a safe and effective option for the treatment of cachexia.

The present invention relates to the technical field of textile materials, and in particular to a method for preparing modified flax yarn capable of reducing the breakage of flax yarn. The flax yarn is soaked in a composite enzyme solution composed of pectinase and ligninase, so that a large amount of impurities in the flax yarn are removed, and then NH 3 The fibers are soaked in urea solution to fully swell the fibers and improve the soaking effect. The fibers are then soaked in ammonium bicarbonate solution and potassium permanganate solution to improve the functional group structure on the flax yarn fibers. The fibers are soaked in propylene glycol solution to adjust the surface properties of the flax yarn fibers, thereby improving the overall properties of the flax yarn fibers, greatly improving the tensile properties of the flax yarn fibers, enhancing the fracture resistance, and reducing the breakage rate of the flax yarn.

The invention discloses a preparation method of an alkaline polyionic liquid catalyst and its application in the process of catalyzing the synthesis of dimethyl carbonate from ethylene carbonate. The catalyst of the invention uses an imidazole ionic liquid as a cationic skeleton, is doped with a monomer containing a basic group of N, and is subjected to free radical polymerization to obtain a solid-state stable polyionic liquid, and then anion exchange is performed to design and prepare a series of alkaline polyionic liquids containing different anions. This method uses an imidazole ionic liquid as a cationic skeleton, is polymerized with ionic liquid monomers containing different basic functional groups, and then different anions are exchanged, thereby significantly changing the alkalinity and swelling property of the polyionic liquid. This makes the catalyst have the advantages of ultra-high swelling rate, rich basic sites, easy recovery and separation, etc. The catalyst is applied to the transesterification reaction of ethylene carbonate and methanol to generate dimethyl carbonate, and has excellent catalytic performance.

The invention relates to the technical field of rubber asphalt, in particular to stable rubber asphalt and a preparation method thereof.The stable rubber asphalt is prepared from road petroleum asphalt, activated rubber powder particles, a modification additive, a compatilizer and a stabilizer according to the following method. Sequentially adding the compatilizer, the activated rubber powder particles and the modification additive into the road petroleum asphalt which is heated to the flowing state, and stirring to a molten state, so as to obtain a mixed material; the preparation method comprises the following steps: mixing the raw materials, then shearing the mixed materials at a high speed, and finally adding a required amount of stabilizer into the sheared mixed materials under a stirring condition for development. The ductility of the stable rubber asphalt at the low temperature of 5 DEG C is 24-31 cm, the softening point is 71-77 DEG C, and the stable rubber asphalt has high and low temperature performance, good stability and excellent performance, and meets the specification of highway engineering asphalt product quality standards.

The utility model discloses a leather shoes with massage function, which comprises a leather shoe composed of a shoe sole and a shoe body, the upper surface of the shoe sole is fixedly connected with an insole, one end of the upper surface of the insole is fixedly connected with a plurality of first protrusions, the other end of the upper surface of the insole is fixedly connected with a second protrusion, one end of the shoe body is fixedly connected with a wear-resistant pad, and the lateral wall surface of the shoe body is provided with a plurality of air holes. The leather shoes with massage function can accelerate blood circulation and effectively improve foot swelling caused by long sitting or standing, relieve whole body fatigue, reduce fatigue during walking, and improve the comfort after wearing the leather shoes, which is beneficial to the wearing and working.

The invention discloses a carrageenan-based adsorption material, a preparation method thereof and application of the carrageenan-based adsorption material in antibiotic / heavy metal dual adsorption, and belongs to the technical field of high polymer materials. The preparation method comprises the following steps: (1) extracting natural melanin from apricot shells; (2) performing esterification reaction on kappa ca by using an Ma photosensitive group to synthesize Ma-kappa ca; and (3) grafting the extracted natural melanin into the Ma-kappa ca network to prepare the melanin / Ma-kappa ca porous gel adsorption material. On the basis of potassium ion crosslinking, chemical functionalization is carried out on kappa ca by utilizing a photosensitive group of methacrylic anhydride (Ma), so that polymer gel of a physical-chemical double-crosslinking system is designed, and Mel is grafted and assembled on a polymer network of the polymer gel; further, the adsorbing material which has good swelling property and stability and does not cause secondary pollution is prepared.

The application provides a method for strengthening leaching of ionic rare earth, which is based on regulation of ZETA potential and seepage rate of clay mineral by cation and anion coordination adsorption to improve leaching efficiency of ionic rare earth, and comprises the following steps: providing ionic rare earth ore, citrate solution and non-ammonium inorganic salt solution, wherein the liquid-solid ratio of the citrate solution to the ionic rare earth ore is 0.1-0.5:1, and the liquid-solid ratio of the non-ammonium inorganic salt solution to the ionic rare earth ore is 0.9-0.5:1; using the citrate solution to perform first leaching treatment on the ionic rare earth ore to obtain first leaching solution; using the non-ammonium inorganic salt solution to perform second leaching treatment on the ionic rare earth ore to obtain second leaching solution; performing first post-processing treatment on the first leaching solution to obtain rare earth; and performing second post-processing treatment on the second leaching solution to obtain rare earth. The method for leaching ionic rare earth has the advantage of high leaching rate.

The utility model discloses a device for rapidly extracting traditional Chinese medicinal materials, which comprises a support frame, a first extraction tank, a second extraction tank and a second extraction tank, wherein the inner side of the support frame is provided with an extraction tank; a liquid supplementing mechanism is arranged at the upper part of the interior of the extraction tank, the liquid supplementing mechanism comprises a liquid supplementing valve, a liquid adding barrel, a pipeline, a water conveying frame and spray heads, the cross section of the water conveying frame is of a * structure, the spray heads are mounted below the water conveying frame at equal angles, and the pipeline is mounted at the right end of the water conveying frame. Sealing heads are mounted on the upper side and the lower side of the extraction tank. According to the device for rapidly extracting the traditional Chinese medicinal materials, loading and unloading are convenient, the medicinal materials can be rapidly infiltrated and swelled under the condition of negative pressure, the temperature during extraction of the medicinal materials is convenient to control, a solvent forcibly flows and exchanges among medicinal material tissues so as to rapidly replace effective components in the traditional Chinese medicinal materials, and the extraction solvent can rapidly reach the equilibrium concentration; and the damage to some heat-sensitive components can be reduced.

The invention relates to the field of polymer materials, in particular to a polymer material and an all-black photovoltaic module. The polymer material comprises EVA resin and the following components, calculated by the mass of the EVA resin: 0.5-1.5% of a cross-linking system, 0.5-1.5% of an ionic liquid, 0.05-0.1% of a silane coupling agent KH-570, and 0.1% of a Ca- 1‑x RE x Al2Si2O8@black TiO2 1‑5%, antioxidant 0.1‑0.5%, light stabilizer 0.1‑0.5%; wherein, 0<x≤0.2, the EVA film made of the polymer material of the present invention has good tensile strength and peel strength, and applying it to solar cells is helpful to improve the photoelectric conversion efficiency of solar cells.

The invention belongs to the technical field of building materials, and discloses a method for compositely modifying asphalt by using waste polystyrene and cement in order to solve the problem that at the present stage, polystyrene boards serving as building thermal insulation materials are difficult to recycle after being discarded. Comprising the following steps: cleaning and drying waste polystyrene, crushing the waste polystyrene into polystyrene particles for later use, heating and stirring matrix asphalt, adding the polystyrene particles and cement when the matrix asphalt is heated to 160-180 DEG C, uniformly stirring, putting into a drying oven at 120-160 DEG C, culturing for 0.5-3 hours at a constant temperature, putting into a high-speed shearing machine, stirring for 3-10 minutes at a speed of 200-400 r / min, and cooling to room temperature. And finally, putting the mixture into a drying oven at 120-160 DEG C, and carrying out constant-temperature cultivation for 15-60 minutes to obtain the modified asphalt. The doping amount of the waste polystyrene is 0.1-6%, and the doping amount of the cement is 0.1-4%. The composite modifier composed of polystyrene / cement can integrally improve the high and low temperature performance of asphalt, recycle of waste polystyrene is achieved, the construction cost is reduced, and sustainable development of civil engineering materials is achieved.

The present invention proposes a fat stem cell composition for wound repair and a preparation method and application thereof, which belongs to the field of stem cell technology. Fetal bovine serum, dexamethasone, penicillin, streptomycin, collagen, magnetic particles, and substance P are added to DMEM culture medium to prepare a culture medium for low-frequency magnetic field culture of fat mesenchymal stem cells, separation, obtaining a stem cell solution, embedding to obtain stem cell microspheres, freeze-drying the supernatant to obtain paracrine culture material, and mixing with stem cell microspheres, hydroxypropyl methylcellulose, carboxymethyl chitosan, hyaluronic acid, glycerol, and stem cell microspheres to obtain a fat stem cell composition for wound repair, which has good effects of implanting damaged tissues, releasing nutrients, promoting new blood vessel formation, regulating oxidative stress and inducing anti-inflammatory reactions, and is helpful for wound repair. It can be converted into a gel phase at a skin epidermal temperature between 35-37°C, stabilizes components, and releases in a controlled manner.

The invention discloses a ginkgo biloba protein isolate / hyaluronic acid composite gel and a preparation method and application thereof, wherein the composite gel is formed by heat induction of ginkgo biloba protein isolate and hyaluronic acid; the preparation method of the composite gel is as follows: (1) preparing a ginkgo biloba protein isolate stock solution; (2) preparing a hyaluronic acid stock solution; (3) mixing and stirring the ginkgo biloba protein isolate stock solution and the hyaluronic acid stock solution to form a mixed solution, cooling after heat induction, and storing at low temperature to form a ginkgo biloba protein isolate / hyaluronic acid composite gel. The present invention combines hyaluronic acid polysaccharides with unique physiological functions with ginkgo biloba protein isolate to improve the mechanical properties, hydration properties, microstructure and thermal stability of the protein gel, solves the problems of poor gelation of ginkgo biloba protein and low utilization rate of ginkgo biloba, realizes the improvement of the processing performance of ginkgo biloba protein isolate, and also provides a new direction for the application of hyaluronic acid in food processing.

The application discloses a microwave-responsive hydrogel dressing and application thereof in preparation of an anti-diabetic chronic infection wound preparation. The raw material of the hydrogel dressing disclosed by the application comprises: (A) a hydrogel matrix; (B) glucose oxidase; (C) a nano-enzyme composition, wherein the nano-enzyme composition at least comprises a luteolin-manganese dioxide composite; wherein the luteolin-manganese dioxide composite is a solid-phase product obtained by wet blending of luteolin and nano-manganese dioxide. Under microwave irradiation, the heat effect generated by the microwave causes the hydrogel dressing to heat up, the heat-enhanced glucose oxidase consumes glucose to generate hydrogen peroxide, and at the same time, the heat-enhanced luteolin-manganese dioxide composite decomposes the hydrogen peroxide to generate oxygen, thereby simultaneously relieving high glucose and hypoxia, fundamentally breaking the vicious cycle of "high glucose-hypoxia-infection-chronic inflammation" of the diabetic wound, and finally improving the antibacterial effect on the skin wound.

The invention relates to the field of adsorption materials, and discloses a lithium adsorption material and a preparation method and application thereof. The lithium adsorption material comprises a core body and a shell layer coating the surface of the core body, holes are formed in the shell layer of the lithium adsorption material, and the average diameter of the holes measured by an SEM (scanning electron microscope) is 0.01-2.5 microns; the core body of the lithium adsorption material comprises finger-shaped holes, and the longest average length of the finger-shaped holes, measured by an SEM (scanning electron microscope), of the section of the lithium adsorption material is 1-7 microns; the shortest average length is 0.05 to 2.5 [mu] m; and the thickness of the shell layer of the lithium adsorption material, which is measured by an SEM (scanning electron microscope), is 1-550 [mu] m. The lithium adsorption material with the specific structure is of a special structure with small outer shell layer holes and large inner core body holes, the mass transfer rate of water and salt can be increased, and when the lithium adsorption material is used for extracting lithium in a liquid environment, the lithium adsorption capacity can be remarkably improved.