129results about How to "Facilitate the expansion of production" patented technology

The invention belongs to the field of a novel chemical power supply and a new energy material, and particularly relates to a novel rechargeable aqueous zinc ion battery taking a vanadate salt as an electrode active material. The rechargeable aqueous zinc ion battery comprises a positive electrode, a negative electrode, a separator and an electrolyte, wherein the separator is arranged between the positive electrode and the negative electrode, the electrolyte contains negative ions and positive ions and has ion conductivity, an active material of the positive electrode takes the vanadate salt to which zinc ions are intercalated / de-intercalated as main, the electrolyte takes a zinc soluble salt as a solute and water as a solvent, the concentration of the electrolyte is (0.1-5)mol / L, and the electrolyte is a liquid-state or gel-state material with ion conductivity. The material shows excellent high-rate performance, cycle stability and long lifetime when assembled to form the aqueous zinc ion battery, is a potential application material of the high-power and long-lifetime zinc ion battery and has a wide application prospect in an aspect of energy storage on a large scale.

A zinc oxide nanometer fiber cathode material for lithium ion battery and a preparation method thereof belong to the technical fields of high polymer material and chemical power source. The zinc oxide nanometer fiber material for lithium ion battery provided by the invention has large specific surface area. The method first prepares composite nanometer fiber by electrospinning, and then the nanometer fiber is subjected to high-temperature calcination to obtain the zinc oxide nanometer fiber. The preparation process provided by the invention is simple and easy to control, and has low production cost. The cathode electrode material for lithium ion battery provided by the invention overcomes the disadvantages of zinc oxide nanorod prepared by other methods as cathode material for lithium ion battery, such as low first cycling efficiency, weak cycle stability and high-rate discharge ability. The invention provides a zinc oxide nanometer fiber cathode material for lithium ion battery and the preparation method thereof. The material has high initial discharge capacity and cycling stability, improves high power characteristic and high-rate discharge capacity of cathode material, and is suitable for development requirements of lithium ion power battery for electric vehicles.

The invention relates to a lithium vanadium phosphate / carbon heterogeneous mesoporous nanowire material and a preparation method thereof. The lithium vanadium phosphate / carbon heterogeneous mesoporous nanowire material is formed by winding mesoporous nanowires in a bundle manner, wherein the diameter of single mesoporous nanowire is 50-200 nanometers, the length is 5-20 microns, and the pore diameter of the internal pore structure is 2-20 nanometers. The preparation method is characterized in that a self-assembly mechanism and follow-up calcination treatment are adopted so that the added surfactant is carbonized in situ to form the lithium vanadium phosphate / carbon heterogeneous mesoporous nanowire material, and a mesoporous hard template does not need to be added in advance; the lithium vanadium phosphate / carbon heterogeneous mesoporous nanowire material can be used as an anode active material of a long-life and high-power lithium ion battery.

The invention discloses a compound doxycycline hyclate suspension injection and a preparation process thereof. The suspension injection is prepared by taking doxycycline hyclate and tilmicosin phosphate as main medicines and adding appropriate medical accessories. The compound doxycycline hyclate suspension injection comprises the following components: 5-20 percent (W / V) of doxycycline hyclate, 5-20 percent (W / V) of tilmicosin phosphate, 0.5-2 percent (W / V) of a suspending aid, 0.01-0.2 percent (W / V) of an antioxidant, 0.1-2 percent (V / V) percent of a thickening agent and injection oil which supplements the balance to reach 100 percent. According to the invention, the doxycycline hyclate and the tilmicosin phosphate are evenly suspended into a solvent by a special process, and therefore the compound doxycycline hyclate suspension injection has good dispersibility and high bioavailability. Meanwhile, a feasible approach is provided for broadened production, and the advantages of increasing medical efficacy, reducing medication frequency and saving manpower and material resources are achieved.

The invention relates to a NiS2 mesoporous nanosphere material and a preparation method thereof. The material can serve as a long-life and high-rate sodium-ion battery negative electrode active material, a plurality of NiS2 subunit nano-particles are regularly stacked to form mesoporous nanosphere structures with uniform shapes, mesopores are formed among the NiS2 subunit nano-particles, the sizes of the mesopores are mainly distributed within the range of 3-4 nanometers, mesoporous nanospheres are free from agglomeration and good in dispersity, the diameters of the NiS2 subunit nano-particles are 150-200 nanometers, and the specific surface area of each mesoporous nanosphere is 49.1m<2>g<1>. The material has the advantages that the NiS2 mesoporous nanosphere material is successfully synthesized and shows excellent high-rate performance, cycling stability and long service life when serving as the sodium-ion battery negative electrode active material, and the material is a potential applied material for a high-power and long-life sodium-ion battery.

The invention discloses a cefquinome sulfate breast injection for dairy cow in the lactation period and a preparation method thereof. The cefquinome sulfate breast injection is prepared from the following raw and auxiliary materials: 0.05-0.15g of cefquinome sulfate (based on cefquinome), 0.008-0.08g of glyceryl monostearate, 0.008-0.08g of a suspending agent and the balance of vegetable oil which is added until the total weight is 8.0g. The preparation method comprises the following steps: adding glyceryl monostearate into a proper amount of pre-treated vegetable oil, heating and melting; then, adding the suspending agent and cefquinome sulfate, and adding the vegetable oil to the total amount; and uniformly grinding. The breast injection has the advantages of low drug release speed, high bioavailability and small irritation to local tissues; each lactation region of each dairy cow is independently administrated, so that cross infection is avoided; the injection is injected through breast and is convenient to use, so that animal stress reaction caused by parenteral administration can be avoided, and convenience is brought to clinical administration; the injection has a remarkable curative effect and extremely high popularization value.

The invention provides an all-solid-state capacitor based on a hydrogel electrolyte and an assembling method thereof in view of the defects of a super capacitor based on a liquid electrolyte. The assembling method comprises the following steps: soybean protein-polyacrylamide composite hydrogel is formed by taking a mixed solution of soybean protein and acrylamide as a prepolymer, adding an initiator ammonium persulfate, a cross-linking agent N, N'-methylene bisacrylamide and calcium chloride and carrying out heating and cross-linking; the composite hydrogel is immersed into an ionic solution at room temperature for replacement to obtain a hydrogel electrolyte in which ions are dissolved; and on the basis, carbon nanotube electrodes are directly adhered to the two sides of the hydrogel electrolyte to obtain an all-solid-state capacitor with a sandwich structure, wherein any adhesive, diaphragm or substrate is not needed. The prepared hydrogel electrolyte has the characteristics of simple preparation method, biocompatibility, environmental friendliness and the like. The assembled all-solid-state super capacitor has the advantages of simple assembly process, excellent electrochemicalperformance, high safety and the like. The invention discloses a preparation method of the all-solid-state capacitor.

The technical invention introduces an organic silica gel / three-dimensional graphene carbon nanocomposite-based small-sized pressure sensor. Graphene-like carbon nanomaterials have high application value in the fields such as supercapacitors, lithium ion battery anodes, catalysis, adsorption, and sensors. According to the small-sized pressure sensor of the invention, a three-dimensional graphene-like carbon nanomaterial is obtained by means of a thermochemical reaction between magnesium powder and carbon disulfide; and the three-dimensional graphene-like carbon nanomaterial, adopted as a conductive medium, fills polydimethylsiloxane silica gel, so that a piezoresistive sensing material can be obtained; and a laser marking machine is adopted to etch an interdigital pattern on a Cu / PET thin film; and the interdigital pattern is coated with a liquid PDMS (polydimethylsiloxane) nanocomposite material, the liquid PDMS nanocomposite material is solidified, so that the small-sized pressure sensor can be obtained. The device has the advantages of wide measurement range and high sensitivity. The small-sized pressure sensors can be made into an array which can be applied to plantar pressure distribution testing or other fields.

The invention relates to preparation of a sulfur-doped graphene-like mesoporous carbon nano-material. A porous carbon nano-material has a very high application value in the field of supercapacitors, Li-ion battery negative electrodes, catalysis, adsorption and the like. A thermal reduction reaction between magnesium powder and carbon disulfide gas is utilized to obtain the mesoporous graphene-likecarbon nano-material, so that high-yield preparation of the high-quality graphene-like carbon material can be realized. Liquid carbon disulfide is bubbled with argon, volatile steam of liquid carbondisulfide is taken into a reaction cavity to react with magnesium powder at 550-650 DEG C to obtain a carbon nano-material and magnesium sulfide mixture. The carbon nano-material and magnesium sulfidemixture is sequentially washed and pickled and subjected to freeze-drying to obtain the loose and light graphene-like mesoporous carbon nano-material of which the sulfur doping percent is about 6%. As the carbon nano-material is prepared by consuming magnesium powder to reduce carbon disulfide, the advantages of low cost and high yield are achieved. The introduced sulfur doping facilitates application of the sulfur-doped graphene-like mesoporous carbon nano-material to electrochemical energy storage electrodes.

The invention discloses a green alga glycosyl microcapsule biological agent and its preparation method and application. Four strains Geobacillus stearothermophilus, Bacillus vallismortis, Bacillus methylotrophicus and Bacillus siamensis are mixed and compounded in proportion; and by a microencapsulation technology which is most effective and practical for protection of strain activity, the active strains are wrapped in a capsule wall substance with Enteromorpha prolifera polysaccharide being the main component. Thus, the green alga glycosyl microcapsule biological agent is prepared. In addition, the invention specifically provides a preparation method of the green alga glycosyl microcapsule biological agent. The green alga glycosyl microcapsule biological agent provided by the invention is pollution-free and can achieve the efficacy of cooperative usage of a fertilizer and a pesticide. The technology is simple and costs are low. The environment is protected. The product has high disease resistance and stress resistance. Survival rate is enhanced. The product is easy for industrial production.

The application discloses a magnetic nano composite material, and a preparation method and application of the material, and belongs to the field of medical materials. The magnetic nano composite material comprises magnetic nanoparticles and a hydrophilic compound layer coated outside the magnetic nanoparticles, the magnetic nanoparticles are iron oxides, the particle size of the magnetic nanoparticles is 0.1-20 nm, the particle size of the magnetic nano composite material is 0.5-300 nm, and the longitudinal relaxation rate r1 of the magnetic nano composite is >= 20 mM-1s-1. The provided magnetic nano composite material can be used as a contrast material, and can be used in the aspects of magnetic resonance imaging contrast agents, targeted drugs, cell separation, etc.

The invention discloses a ceftiofur hydrochloride breast injection for dairy cow in dry period and a preparation method thereof. The injection is prepared from the following raw and auxiliary materials: 2.5-10g of ceftiofur hydrochloride, 0.5-5g of glyceryl monostearate, 0.5-5g of a suspending agent and the balance of vegetable oil which is added until the total amount is 100ml. The preparation method comprises the following steps: mixing a proper amount of vegetable oil and glyceryl monostearate, heating and melting; then adding the suspending agent and ceftiofur hydrochloride, and adding the vegetable oil until total amount; and uniformly grinding to prepare the ceftiofur hydrochloride breast injection. The breast injection has the advantages of low drug release speed, high bioavailability and small irritation to local tissues; each lactation region of each dairy cow is independently administrated, so that cross infection is avoided; the injection is injected through breast and is convenient to use, so that animal stress reaction caused by parenteral administration can be avoided, and convenience is brought to clinical administration; the injection has a remarkable curative effect and extremely high popularization value.

The invention discloses a freeze-dried preparation of a vaccine containing an aluminum adjuvant, and a preparation method and application of the freeze-dried preparation. The aluminum salt vaccine freeze-dried preparation contains nanoparticles or microparticles formed by compounding anionic polymers or derivatives thereof and aluminum salt, a vaccine antigen, an adjuvant and a freeze-dried protective agent; and a freeze-drying method provided by the invention avoids the massive aggregation of aluminum hydroxide in the vaccine, and reduces the damage to the activity of the antigen. The stability of the vaccine in the freeze-drying process and the storage process can be improved; the vaccine can get rid of cold-chain transportation; the cost is reduced; energy is saved; and particularly, the technical problem that a low-temperature cold chain in a remote area is difficult to guarantee is solved.

The invention discloses enrofloxacin sustained-release tablets for pets and a preparation process for the same. The enrofloxacin sustained-release tablets disclosed by the invention are stable in medicine release and safe in medication, as well as is composed of enrofloxacin, a sustained-release or controlled-release material, a filler, an adhesive, a lubricant and a flavouring agent. The enrofloxacin sustained-release tablets prepared by the preparation process disclosed by the invention have the characteristics of being convenient to administrate, lasting in action and stable in curative effect.

The invention relates to a Roman hen feed containing a D-ribose feed additive. The feed comprises the following main raw material components: corn, bean pulp, cooked millet, tomato seed dregs, peanut skin, sunflower seed, cooked yolk, sweet potato flour, potato powder, calcium hydrophosphate, stone powder and salt. Microelement premix, the D-ribose feed additive and a traditional Chinese medicine additive are further added in the main raw materials. The D-ribose additive comprises D-ribose, bran, corncob powder, medical stone and high-calcium stone powder. The traditional Chinese medicine additive contains schisandra chinensis, medicated leaven, Scutellaria baicalensis, folium isatidis, houttuynia cordata, salvia root, Chinese angelica, fingered citron, wild buckwheat, white paeony root and malt. By adjusting the main feed recipe and adding the D-ribose feed additive, the premix microelement and the traditional Chinese medicine additive in the main feed, the microbial flora balance in an animal body is improved, and the proliferative activity of intestinal bifidobacterium is promoted selectively, so that the daily gain and the propagation performance of Roman hens are improved.

The invention provides a colon-targeted gel microsphere with a controllable core-shell ratio, and preparation and application of the colon-targeted gel microsphere. The gel microsphere comprises a core layer, an inner shell layer and an outer shell layer from inside to outside in sequence, wherein the core layer comprises cereal prolamin and an active matter; the inner shell layer comprises gel polysaccharide; the outer shell layer comprises chitosan, a cross-linking agent and a suspending aid. The inner shell layer and the core layer form core-shell structure fog drops through a coaxial electrostatic spraying technology, in an outer shell layer solution, the inner shell layer gel polysaccharide of the core-shell structure fog drops is cross-linked with the cross-linking agent and is subjected to electrostatic layer-by-layer adsorption with chitosan, and therefore, the colon-targeted gel microsphere is prepared. The particle size of the gel microsphere is 100-600 [mu] m, the core-shell ratio is 0.5-0.9, the encapsulation efficiency of a water-soluble active matter is as high as 60%, the encapsulation efficiency of an alcohol-soluble active matter is as high as 90%, the release amounts in a stomach simulation liquid and a small intestine simulation liquid within 1 h and 3 h can be as low as 10% and 25%, and the gel microsphere can be efficiently delivered and targeted to the colon.

The invention discloses a bacillus vallismortis strain SJ and an application of the strain in preparation of a tobacco antiviral preparation and a promoter. The preservation number of the bacillus vallismortis strain SJ is CGMCC No.7571 (China General Microbiological Culture Collection Center). The invention also provides an SJ strain preparation with certain viable count, and the SJ strain preparation can be used for preparing a biological preparation capable of resisting a tobacco viral disease and a promoter for promoting the growth of the tobacco. By adopting the technical scheme, not only the utilization rates of a fertilizer and a pesticide capable of resisting the tobacco virus can be reduced, but also the environment pollution caused by the pesticide is reduced; the application of the SJ strain preparation disclosed by the invention not only can reach good antiviral effect, but also can effectively promote the growth of the tobacco; and the SJ strain preparation is low in production cost, simple and convenient to operate, long in storage time, easy to store and transport, conductive to factory expanded production, capable of achieving industrialization, and good in technical effect and market application prospect.

The invention belongs to the technical field of nanometer materials and electrochemistry and particularly relates to an accordion-shaped VS2 material as well as a preparation method and application thereof. The accordion-shaped VS2 material can be taken as an anode active material of a long-life and high-magnification sodium-ion battery and comprises a nanoparticle formed by regular stacking of a plurality of VS2 nanometer subunit nanosheets, and gaps are formed among the nanosheets to form a similar accordion-shaped stereoscopic structure; and the length of the nanoparticle is 1-1.5 microns, the width of the nanoparticle is 500nm-800nm, and the thickness of the single nanometer subunit nanosheet is 30nm-35nm. The preparation method has the beneficial effects that the accordion-shaped VS2 material is successfully synthesized by virtue of a high-temperature water method and a high-temperature sintering method; and when being used as the anode active material of an embedded sodium-ion battery, the accordion-shaped VS2 material presents excellent high magnification rate performance, cycling stability and long life and is a potential application material for the high-power and long-life sodium-ion battery.

The invention discloses a method for preparing natural hydroxytyrosol by taking olive leaves as a raw material and adopting an ultrasonic assisted in-situ extraction process, and belongs to the technical field of extraction and separation of natural product effective components. The method comprises the following steps: (1) pretreating the raw material; (2) performing ultrasonic extraction synchronous leaching on hydroxytyrosol in the olive leaves by using a double-phase system which consists of an organic solvent A and an alkaline solution; (3) performing activated carbon decoloration on an organic solvent extraction phase, then performing compressed concentration, and removing impurities by adopting an organic solvent B; and (4) performing thermal melting on an extract which is obtained by virtue of impurity removal by using an organic solvent C, filtering while heating, and then performing compressed concentration and drying to obtain a high-quality hydroxytyrosol product. According to the process disclosed by the invention, the cavitation effect and mechanical vibration effect produced by ultrasonic waves and an in-situ extraction process are adopted, extraction and leaching can be synchronously performed, and natural hydroxytyrosol with high content can be prepared by using simple separation and purification processes; and the method disclosed by the invention can be used for shortening the production cycle, is high in product yield, mild in separation and purification conditions, small in toxicity and low in production cost, and can be suitable for industrial production.

The invention provides an air cathode of a microbial fuel cell and a preparation method of the air cathode, relates to an air cathode of a single-chamber air cathode microbial fuel cell and a preparation method of the single-chamber air cathode microbial fuel cell, and aims at solving the problems that the air cathode in an existing microbial fuel cell is high in manufacturing cost and complicated in manufacturing technology. The air cathode comprises a liquid catalyst, a waterproof and breathable film and a stainless steel net, wherein the liquid catalyst coats the waterproof and breathable film; the stainless steel net is arranged on the side, loaded with the liquid catalyst is loaded, of the waterproof and breathable film in a stacking manner. The preparation method comprises the steps of 1, mixing a catalyst, isopropanol, Nafion and deionized water to prepare the liquid catalyst; 2, coating the waterproof and breathable film with the liquid catalyst; and 3, stacking the stainless steel net on the side, loaded with the liquid catalyst, of the waterproof and breathable film. The air cathode of the microbial fuel cell is low in manufacturing cost, simple in manufacturing technology, and short in consumed time, and the expanded production of the air cathode can be facilitated.

The invention discloses a preparation method of an n-type bismuth telluride-based thermoelectric material. The preparation method comprises the following steps: weighing bismuth powder, tellurium powder and selenium powder serving as raw materials according to the stoichiometric requirements of Bi2Te3-xSex, wherein x is more than or equal to 0.1 and less than or equal to 0.7; and then carrying outself-propagating reaction, reduction annealing, plasma activated sintering and hot forging treatment to obtain the compact n-type bismuth telluride-based thermoelectric material. The Bi2Te3-xSex powder is rapidly obtained by adopting a self-propagating combustion synthesis technology, reduction annealing is carried out on the Bi2Te3-xSex powder, and step-by-step hot forging is carried out to obtain the polycrystalline block thermoelectric material with high orientation, so that the thermoelectric performance of the obtained product can be remarkably improved; and the related preparation method is simple and convenient to operate, and a brand-new thought can be provided for expanded production of the high-performance n-type Bi2Te3-xSex-based thermoelectric material.

The invention relates to a novel eye drop used for pet. The main ingredients of the eye drop comprise a Cecropins antibacterial peptide, a water-soluble chitosan and a borneol. Apart from the broad-spectrum antibacterial activity, the eye drop also has the resistance effect for virus, parasite, fungus and cancer cell which can enhance the immunity and facilitate the wound healing with no resistance to drugs and no residues after long-term usage. Moreover, the water-soluble chitosan is very excellent in viscosity, mould integration property, antibacterial activity and absorbability, which can overcome the deficiencies of conventional eye drops such easy lose and frequent dose.

The invention discloses a steel ladle composite down nozzle and a preparation method thereof. The steel ladle composite down nozzle comprises a body and a composite body, wherein the body comprises the following raw materials in parts by weight: 88-96 parts of high alumina bauxite, 3-6 parts of graphite, 0.2-1 part of metal aluminum powder, 0.5-2 parts of metal silicon powder, and 3.0-3.5 parts ofphenolic resin; and the composite body comprises the following raw materials in parts by weight: 85-96 parts of recycled slide plates, 2-6 parts of graphite, 0.5-1 part of metal aluminum powder, 0.5-2 parts of metal silicon powder, and 3.0-3.5 parts of phenolic resin. The steel ladle composite down nozzle obtained by the method has the advantages of high-temperature resistance, good thermal shockresistance, corrosion resistance, high thermal shock strength and low production costs, and meanwhile, the preparation method is simple and convenient for expanded production. According to the invention, composite forming is adopted, the body material is adopted around a casting hole, the composite material is adopted at other parts, thus service life is guaranteed, at the same time the materialcosts are reduced, and the cost performance is relatively high.

The invention provides Pt@PCN-224 and derivatives thereof which are used as a photocatalyst for preparing artemisinin from dihydroarteannuic acid, also provides a preparation method of Pt@PCN-224 andthe derivatives, and belongs to the field of preparation and application of MOF (metal-organic framework) materials. By means of the advantages of large specific surface area and high porosity of MOFs, the MOFs are taken as carriers, porphyrin and Pt nano-particles are synergistically used as the photocatalyst, high activity and high selectivity of the catalyst are guaranteed by interaction, and the catalytic action of the catalyst is improved; a biosynthetic precursor (arteannuic acid) is adopted for photochemical semi-synthesis, so that cost of extraction or complete synthesis of artemisininis reduced; the preparation method of the Pt@PCN-224 photocatalyst for preparing artemisinin from dihydroarteannuic acid is simple and high in operability.

The invention discloses a meloxicam sustained release tablet used for a pet and a preparation technology thereof. The meloxicam sustained release tablet is stable to release and safe to administrate and comprises solid meloxicam dispersoid, a sustained release material, a filling material, an adhesive, a lubricant and a corrigent. The meloxicam sustained release tablet has the characteristics of convenient administration, rapid and lasting effects and stable curative effects.

The invention relates to a high-magnification vanadium oxide / carbon nanotube flexible film as well as a preparation method and application thereof. The vanadium oxide / carbon nanotube flexible film is formed by stacking a vanadium oxide nanoribbon, a vanadium oxide nanoscroll and a carbon nanotube in layers, wherein the thickness of the film is 40-160 microns, and the thickness of the vanadium oxide nanoribbon is 6-10nm; the vanadium oxide nanoscroll is formed by curling the vanadium oxide nanoribbon, the diameter is 0.3-1 micron, and the length is 0.8-2 microns; and the outer diameter of the carbon nanotube is 8-15nm, and the length is 45-50 microns. The invention has the following beneficial effects: a flexible vanadium oxide / carbon nanotube composite is successfully synthesized by a one-step hydrothermal method; and with a simple suction filtration method, a self-support vanadium oxide / carbon nanotube flexible film electrode material with controllable thickness is prepared. When used as a lithium ion battery anode active material, the flexible film electrode shows excellent cyclic stability and high magnification.

The invention relates to a preparation method of a porous VO2 nano-wire. The preparation method comprises the following steps: (1) measuring deionized water, placing the deionized water into a beaker, and maintaining a water-bath stirring state; (2) measuring ammonium metavanadate powder, adding the ammonium metavanadate powder into the beaker, and stirring continuously; (3) taking out the beaker, stirring while cooling the beaker to room temperature, slowly adding hydrochloric acid into the beaker, stirring continuously, and adjusting the pH value while keeping the stirring state; (4) transferring the obtained solution into a reaction kettle, heating the reaction kettle to facilitate a reaction, taking out the reaction kettle, and naturally cooling the reaction kettle to room temperature; (5) placing the obtained product, namely an NH4V3O8 nano-wire, into a plastic pipe, and drying the NH4V3O8 nano-wire in a drying box; and (6) sintering the NH4V3O8 nano-wire to finally obtain the porous VO2 nano-wire. The porous VO2 nano-wire and the preparation method have the beneficial effects that the nano-wire is excellent in cycling characteristic and serves as a potential application material of a long-service-life lithium ion battery; the process is simple, the adopted simple hydrothermal method and calcining process have low requirements on equipment, the expanded production is likely to realize, and the market popularization can be favored.

The invention belongs to the technical field of processing and production of cosmetics, and mainly relates to a moisturizer containing astaxanthin and a preparation method of the moisturizer. The moisturizer is prepared from the following components in percentage by mass: 0.1-2% of astaxanthin extract, 1-5% of natural glycerin, 0.01-1% of hyaluronic acid, 0.01-1% of polyglutamic acid, 0.01-1% of arginine, 0.01-1% of allantoin, 0.1-5% of green tea extract, 0.1-5% of dandelion extract, 0.1-5% of clove extract, 0.1-5% of lotus leaf extract, and the balance of deionized water. The preparation method comprises the following steps of weighing the natural glycerin, the hyaluronic acid, the polyglutamic acid, the arginine and the allantoin in percentage by mass, and uniformly stirring; adding the deionized water, increasing temperature to 60-90 DEG C, insulating heat for 5-10min, and uniformly dispersing the raw materials; cooling to 20-50 DEG C, sequentially adding the astaxanthin extract and a plant extract, and stirring, until the raw materials are uniformly dispersed; adjusting the pH (potential of hydrogen) value of solution to 6-7, sterilizing by ultraviolet lays, disinfecting, and bottling. The moisturizer containing the astaxanthin with strong inoxidizability has excellent effects of resisting oxidizing, preventing aging, moisturizing and removing wrinkles, preventing ultraviolet rays and the like.

The invention discloses a metallic copper complex of bipyridine dicarboxylic acid derivatives and a preparation method thereof and application of the metallic copper complex as ferroelectric material, and belongs to the technical field of synthesis of novel chemical materials. The metallic copper complex has the chemical formula of {[Cu(C26H20N2O4)Cl(H2O)]<+>.Cl<->.2H2O}n, crystal of the metallic copper complex is of monoclinic system, having space group Cc and cell parameters of a=17.225(4) angstrom, b=14.918(3) angstrom, c=11.589(3) angstrom, alpha=gamma=90.00 DEG, beta=118.957(3) DEG, and Z=4. The metallic copper complex of bipyridine dicarboxylic acid derivatives is prepared via conventional synthetic processes. The preparation method of the metallic copper complex of bipyridine dicarboxylic acid derivatives has simple process, the sources are sufficient, crystal samples are high in purity, growth speed is high, and the yield is high; the crystal is present in the polar space group; the metallic copper complex has ferroelectric properties at room temperature, may act as a ferroelectric material applicable to scientific experiments and studies and other fields, and is widely applicable.

The invention discloses a cefdinir dispersible tablet and a preparation method thereof. The cefdinir dispersible tablet is prepared from, by weight, 50 parts of cefdinir, 15-75 parts of microcrystalline cellulose, 15-75 parts of mannitol, 1.5-12 parts of polyvinylpolypyrrolidone, 1.5-15 parts of aspartame, 0.375-7.5 parts of silicon dioxide and 0.375-7.5 parts of magnesium stearate. The formula of the cefdinir dispersible tablet is optimized, the raw materials are prevented from being micronized in the direct powder compression preparation process, and process operation is simplified; meanwhile, cefdinir and auxiliary materials do not need to be separately screened, the yield of products is increased, the cefdinir dispersible tablet is suitable for expanded production, after expanded production, loose tablets, cracking tablets, sticking and the like are avoided, the dissolution rate of prepared medicine is high, the impurity content is low, the tablet difference is low, the yield is high, and the quality stability and yield of the medicine are guaranteed.