51results about How to "Morphological stability" patented technology

the invention discloses a chitose nanometer fiber film and preparing method with stable shape structure in the carrier domain, which comprises the following steps: forming transparent solution in the water mixed solvent through dissolving chitose and polyvinyl alcohol in the glacial acetic acid; putting the spin liquid in the feeder; connecting spin-spraying head with high-pressure power at 5-30 kV; spinning; immersing the film material in the strong alkaline solution; possessing stable shape structure.

The invention belongs to the field of environmental catalysis, and discloses a photocatalyst for efficiently degrading tetracycline under visible light and a preparation method and application of thephotocatalyst. The preparation method of the photocatalyst comprises the following steps: mixing a nitrogen-containing compound in water, carrying out hydrothermal treatment, cooling, transferring into a culture dish, and carrying out freeze drying treatment to obtain a precursor; and putting the precursor into a closed environment for high-temperature roasting, and naturally cooling to obtain thegraphite-phase carbon nitride photocatalyst for efficiently degrading tetracycline under visible light. According to the preparation method, the raw materials are mixed for hydro-thermal treatment and freeze-drying treatment to obtain the precursor, the graphite-phase carbon nitride obtained through constant-temperature roasting under different conditions has a relatively high specific surface area, and the separation of photo-induced electrons and holes can be effectively promoted through the formation of material defects; therefore, the purpose of efficiently degrading 10 mg/L tetracyclinehydrochloride under visible light is achieved.

The invention belongs to the technical field of polymer composite materials, and particularly relates to a solar evaporator with a hollow structure and a preparation method and application thereof. According to the solar evaporator provided by the invention, the interior of the solar evaporator is of a hollow structure, the exterior of the solar evaporator is a shell layer of a two-layer structure, and the two-layer structure is composed of a porous polymer skeleton inner layer and an outer layer formed by a photo-thermal material. Under the irradiation of simulated sunlight (wherein one sunlight intensity is 1 KW/m<2>), the maximum value of the evaporation rate of the solar evaporator can reach 1.476 kg/m<2>/h, and the maximum value of the evaporation efficiency of the solar evaporator can reach 92.9%.

The invention discloses carboxymethyl-beta cyclodextrin-grafted chitosan ionic crosslinking nanoparticles and a preparation method and an application thereof. The structural formula of the nanoparticles is as shown in the specification, wherein n is 1200-3200 in the structural formula, the particle size distribution interval is 100-260nm and the mean particle size is about 190nm. Compared with the prior art, a prepared carboxymethyl-beta cyclodextrin-grafted chitosan ionic crosslinking nanoparticle drug carrier has a stable form structure, the particle size distribution interval of the nanoparticles is 100-260nm and the mean particle size is 190nm; hydrophobic protein drugs can be effectively entrapped; and the protection of the protein drugs in the environments of a gastric acid and the like is facilitated.

The invention discloses a preparation method of rapid and high water-absorption non-woven cloth, which comprises the following steps: preparing a hydrophilic monomer, a comonomer, an initiator, a cross-linking agent and distilled water into mixed grafting liquid by an ultraviolet irradiation initiation method; copolymerizing and cross-linking a water-absorbing resin layer with high water-absorbing capacity on a polyester non-woven cloth base body; and performing sodium hydroxide neutralization and ethanol dehydration to prepare rapid and high water-absorption non-woven cloth with a large amount of fluffy structures. The preparation method of the rapid and high water-absorption non-woven cloth has the advantages of easily available raw materials, low cost and simplicity in operation. Compared with the traditional high water-absorption resin, the rapid and high water-absorption non-woven cloth prepared by the method has higher water-absorbing speed, more stable morphological structure and higher practicability. Compared with the conventional high water-absorption fiber, the rapid and high water-absorption non-woven cloth prepared by the method has higher water-absorbing rate and can be widely applied in the fields of sanitation, air dehumidification and the like.

The invention relates to a united and quantitative anti-sperm antibody and Mullerian duct hormone detection card and a manufacturing method and a usage method thereof. The detection card comprises a bottom card and a face card, wherein the bottom card is provided with a sampling zone, a combining zone, a valve, a detection zone and a water liquid zone, the sampling zone is connected with the combining zone, the sampling zone and the combining zone are located at one end of the valve, the detection zone is connected with the waste liquid zone and is located at the other end of the valve, and the face card is provided with a sampling hole and a detection hole. The fluorescent microspheres used by the card are not affected by the outside environment, so that fluorescence is stable. In addition, the flowing speed of blood to be detected on the detection card is controlled through a microfluidic technology, and good conditions are provided for quantitative detection.

The invention relates to a preparation method of rare-earth fluorescent microspheres, belonging to the technical field of fluorescent substance preparation. The method comprises the following steps: carrying out pretreatment to obtain a monomer refined methyl methacrylate and an initiator refined azodiisobutyronitrile, preparing a rare-earth high-luminescent-intensity three-element coordination compound with polymerization activity by a coprecipitation process, copolymerizing the three-element coordination compound with methyl methacrylate to obtain a high-molecular-weight high-polymer rare-earth metal copolymer solid material which is the rare-earth fluorescent microspheres. The example proves that the rare-earth fluorescent microspheres can be used in the aspects of biological detection, fluorescent markers, special-type inks, medical immune detection and cell markers, can not injure the human body, and has stable and efficient luminous emissivity and longer fluorescent lifetime (by 30% or above).

The invention discloses cell preserving fluid, a preparation method thereof and a cell preserving method, and relates to the technical field of cell preservation. The cell preserving fluid disclosed by the invention contains ethanol, Tris, EDTA.2Na, bromelain, tris(2-carboxyethyl)phosphine hydrochloride, diisobutyl naphthalene sulfonic acid, BSA, trehalose, procline300 and glacial acetic acid. The cells preserved by the cell preserving fluid are complete in morphological structure, interference components such as mucus and red blood cells can be effectively cracked, interference to a detection result is avoided, and a good foundation is provided for subsequent slide preparation and dyeing.

The invention discloses an ABS (Acrylonitrile Butadiene StyreneAcrylonitrile Butadiene Styrene) reinforced modified PBT (Polybutylece Terephthalate) composition, which is prepared from the following components in parts by weight: 40 to 70 parts of PBT, 10 to 20 parts of ABS, 10 to 30 parts of glass fiber, 1 to 10 parts of triblock copolymer of poly(styrene)/poly(butadiene)/poly (methyl methacrylate), 0.1 to 1 part of antioxidant, 0.5 to 2 parts of coupling agent, and 1 to 2 parts of lubricating agent. A product prepared by utilizing the composition has high gloss, improved shock strength, high tensile strength and the like. The invention also discloses a preparation method of the composition.

The invention discloses a green high-performance concrete, which is prepared from the following raw materials in parts by weight: 280-330 parts of cement, 260-300 parts of water, 340-410 parts of fine aggregate, 1250-1320 parts of coarse aggregate, 42-48 parts of fly ash, 11.5-12.7 parts of viscosity reducing polycarboxylate superplasticizer, 220-430 parts of grafted waste ABS engineering plastic particles, 0.2-1.2 parts of antifoaming agents, and 20-30 parts of nanosilicon carbide. According to the invention, the waste ABS engineering plastics can be reasonably utilized to produce the concrete, and the produced concrete is high in strength; thus, reasonable recycling of waste resources is realized. The scheme can be applied to the technical field of concrete production.

The invention provides a bionic medical fibroblast with a sequence of SEQ ID NO:1. On the one hand, the invention provides a preparation method for preparing a protein fragment of the fibroblast. Theprotein fragment is 160-324-locus amino acid of a scallop byssus protein with a sequence of SEQ ID NO:1, and the sequence of the protein fragment is SEQ ID NO:2. The protein prepared into the fibroblast is prepared by virtue of a genetic engineering method from the material source, is low in cost and environment-friendly and can be produced in a large scale. A protein-base material is derived fromocean scallop byssus, is formed through polymerization in a similar seawater environment and has good adaptability and stability to a humidity environment. The bionic medical fibroblast has relatively good development prospects in the medical material field. According to a marine organism derived material, the transmission risk of terrestrial biological diseases is avoided in the aspect of the biological safety of materials, and an examination result shows that the material has no cytotoxicity and has good biocompatibility.

The invention discloses a fluorescent microsphere immunochromatographic test strip for detecting olaquindox residue and application thereof, the test strip can qualitatively and quantitatively detectolaquindox in water and feed, the sample pretreatment process is simple, convenient and fast, the detection time is short, and the test strip has very high precision and sensitivity; in addition, theolaquindox-resistant monoclonal antibody prepared by the invention is high in specificity; an olaquindox monoclonal antibody marked by fluorescent microspheres is adopted; the luminous intensity and the detection signal of the fluorescent microsphere can be enhanced along with the enhancement of the exciting light intensity, so that the fluorescent microsphere labeled olaquindox monoclonal antibody can effectively improve the analysis sensitivity of an immunochromatographic technique, and compared with the traditional colloidal gold immunochromatographic method, the immunochromatographic method provided by the invention has higher sensitivity; meanwhile, as the fluorescent microspheres have relatively stable morphological structures, the microspheres are uniform in granularity, good in dispersity and stability, high in luminous efficiency and good in repeatability, and dye fluorescence quenching is greatly reduced.

The invention belongs to the field of polymer composite materials, and relates to a polymer hydrogel film with piezoelectric property and preparation and application thereof. The invention provides a high-molecular hydrogel film with piezoelectric property, the high-molecular hydrogel film comprises an outer layer and an inner layer, the outer layer is high-molecular hydrogel, and the inner layer is a piezoelectric polymer film. The invention provides a novel high-molecular hydrogel film with piezoelectric property, and due to the characteristic of high hydration of hydrogel, a molecular chain can more strongly capture surrounding water molecules to influence a hydrogen bond network in water so as to activate the water; in addition, due to the fact that the hydrogel film has the piezoelectric property, by means of the piezoelectric property of the film, the film can continuously convert wave energy in the ocean into electric energy, the electric energy can be used for further activating water which is activated by the hydrogel and located around molecular chains, and meanwhile unaffected water which is far away from the molecular chains in the hydrogel can be activated; energy required by water evaporation is reduced again, and the water evaporation process is promoted synergistically.

The invention discloses a qi-invigorating type healthcare olive throat-moistening tea. The tea is prepared from, by weight, 200-220 parts of fresh olives, 6-8 parts of tremella, 4-5 parts of sweet potatoes, 6-7 parts of goat milk, 5-6 parts of snakehead meat, 1-1.2 parts of ginseng leaves, 1.3-1.5 parts of lotus pedicels, 0.8-1 part of notoginseng flowers, 1-1.1 parts of licorice roots, a proper amount of pectinase, 8-10 parts of white granulated sugar, 0.3-0.5 part of xanthan gum and a proper amount of water. According to the tea, olives serve as the main raw material, tremella, sweet potatoes, notoginseng flowers, licorice roots and the like serve as auxiliary materials, the materials are reasonably blended and have complementary advantages in taste, and the nutrition and healthcare throat-moistening tea which is coordinated in flavor, gentle in taste and stable in form and texture and contains rich Vc and active materials is developed; meanwhile, the nutrition and healthcare throat-moistening tea has the effects of enriching yin and nourishing the kidneys, invigorating qi and nourishing blood, supplementing qi and promoting the production of body fluid, tonifying the spleen and whetting the appetite, and tranquilizing the mind.

The invention discloses a special substrate for wild peony plants and application of the special substrate. The substrate is prepared from the following raw materials: coconut bran, peat, perlite, EMbacterial liquid and diethyl aminoethyl hexanoate. The substrate provided by the invention has the characteristics of stable form and structure, long acting time, weak acidity, high organic matter content, capability of rapidly enabling transplanted plants to adapt to a new environment and the like, the problems of insufficient soil air permeability, residual disease and insect pests, unsuitable acidity and alkalinity and the like existing in traditional garden soil planting are solved, and the cultivation requirements of wild peony plants are met well.

The invention belongs to the technical field of polymer composite materials, and particularly relates to a polymer film with a hierarchical porous structure and a preparation method and application thereof, and the polymer film can be used as a surface heat management film of a solar evaporator. The invention provides a polymer membrane, the polymer membrane has a micron pore structure and a nano pore structure, micron pores are distributed all over the whole polymer membrane, and the pore wall of each micron pore contains nano pores. The obtained polymer film has a hierarchical porous structure, can be used as a polymer-based heat management film, and can perform energy limitation on the surface of a solar evaporator and reduce the loss of heat in the form of heat radiation and heat convection when being used for the solar evaporator.

The invention discloses a cover-containing packaging box convenient to disassemble and combine. The packaging box is characterized in that the two ends of a short side plate are connected with inner wing plates which are respectively attached to the two ends on the inner side of a long side plate after folding; the width of the inner wing plates after folding is the same as the height of the long side plate; outer wing plates which are attached to the outer side of the long side plate after folding are connected on the two sides of a cover plate; the height of the inner wing plates and the outer wing plates is the same as the height of the short side plate; at least two outer penetrating holes which penetrate through outer wing plate bodies are formed in the outer wing plates; middle penetrating holes are formed in the positions, opposite to the outer penetrating holes, of the long side plate; inner penetrating holes are formed in the positions, corresponding to the middle penetrating holes, of the inner wing plates; at least two bayonets which are distributed at equal intervals in the circumferential direction are formed in the side walls of locating pipes; first oblique angles are chamfered on the edges on the same sides, in the circumferential direction of the inner sides of the locating pipes, of the bayonets; male connectors are provided with clamping hooks which are connected on elastic arms, are in one-to-one correspondence with the bayonets, and are clamped in the bayonets; and second oblique angles are chamfered on the outer edges, corresponding to one sides of the first oblique angles of the bayonets, of the clamping hooks. According to the cover-containing packaging box convenient to disassemble and combine, the shape is stable, the packaging box can be quickly assembled and disassembled, and the cost is low.

The invention provides a process for producing a filter bag by utilizing a melt-blowing method, and a filter device, and relates to the technical field of air filtering devices. The technical problemthat in the prior art, a wrinkled filter bag is difficult to form through an existing process is solved. The process for producing the filter bag through the melt-blowing method comprises the steps offeeding, heating extrusion, filtering, spinning forming, pressing mold shaping, electret and demolding. A flowable melt is formed by raw materials through feeding and heating extrusion, the flowablemelt is sprayed to a forming mold through spinning forming, the forming mold comprises a normal-temperature mold, and shaping ribs are arranged in the circumferential direction of the normal-temperature mold; and the filter device comprises a supporting device and the melt-blown filter bag arranged on the outer side of the supporting device in a sleeving mode. The filter bag matched with the forming mold in shape can be manufactured, the process is simple, the efficiency is high, and the obtained filter bag is stable in form and structure, low in cost, capable of filtering out dust, droplets,viruses and the like, good in filter effect and wide in application range.

The invention discloses a nano targeted drug carrier, a preparation method and an application of carrier. The structural formula of the drug carrier is as shown in the specification. Compared with the prior art, the drug carrier has a stable morphological structure and can effectively entrap hydrophobic anti-tumor drugs, selectivity of the anti-tumor drugs is enhanced by the targeting function of a targeting group in the drug carrier, anti-tumor effects are enhanced, toxic and side effects on normal tissues are decreased, and drug-loaded nanoparticles can retain tumor tissues for a long time and release drugs for a long time to enhance efficacy.

The invention discloses a lidded packaging box conveniently disassembled at two steps. The lidded packaging box is characterized in that at least one outer wing through hole penetrating through the main body of each outer wing plate is arranged in each outer wing plate, long side plate through holes which are opposite to the outer wing through holes are arranged in long side plates, at least one inner wing through hole penetrating through the main body of each inner wing plate is arranged in each inner wing plate, and short side plate through holes which are opposite to the inner wing through holes are arranged in short side plates; and a connecting buckle is provided with female connectors and male connectors, the male connectors are provided with clamping hooks which are connected to an elastic arm, are in one-to-one correspondence with clamping openings and are clamped into the clamping openings, second bevel angles are chamfered on the outer edges of the sides corresponding to the first bevel angles of the clamping openings of the clamping hooks, the clamping hooks can move along the first bevel angles by utilizing the second bevel angles and are accordingly separated from the clamping openings, the outer end of the elastic arm is connected with male connector outer edges which are pressed on the outer edges of the through holes at the outer side, and the inner sides of the male connector outer edges are connected with prismatic holes. The lidded packaging box is stable in form, can be rapidly disassembled and is low in cost.