113results about How to "Easy to ingest" patented technology

The invention discloses a heat pump driving solution moisture regulating and domestic hot water preparing system realizing energy balance. The system is characterized by comprising a heat pump circulating system and a solution moisture regulating system, the heat pump circulating system comprises a frequency-variable compressor, a four-way reversing valve, a solution cooling condenser, a stop valve, a throttling valve and an evaporator, and a water-cooling condenser is introduced to prepare domestic hot water; the solution moisture regulating system comprises a dehumidifier, a regenerator, a solution pump, a solution heat exchanger, a solution valve and a fan. The heat pump driving solution moisture regulating and domestic hot water preparing system combines a solution circulating system, the heat pump system and a domestic water preparing system, and domestic water is prepared by utilizing redundant condensing heat of a refrigerant while solution moisture regulating is realized through driving of a heat pump, so that system energy balance and effective utilization of energy resources are realized, and comprehensive performance of the system is improved.

The invention relates to a chiral graphene quantum dot.The chiral quantum dot nano material is a single-layer graphene quantum dot modified with chiral amino acid.The chiral graphene quantum dot has the advantages that the chiral graphene quantum dot has the antibacterial property and is not prone to cause bacterial drug resistance, capable of selectively killing bacteria and free of toxicity to mammalian cells; the chiral graphene quantum dot is good in stability and water solubility and low in cost; the chiral graphene quantum dot has a novel chiral optical signal.

The invention discloses a method for improving solubility of poorly soluble drugs using silicon nanocarriers. The technical points are as follows: an aqueous solution of silane is used as an aqueous phase, a mixed solvent of Triton X-100, alkanes, alcohols and pore-forming agents is used as an oil phase; under stirring conditions, the aqueous phase is added into the oil phase to form a water-in-oil reversed-phase microemulsion; after the microemulsion is stabilized, tetraethoxysilane (TEOS) and ammonia hydroxide are added to trigger polymerization reaction to form silicon nanoparticles at an emulsion interface; acetone is added to stop reaction, the silicon nanoparticles are added to an acetic acid solution to dissolve pore-forming agents after cleaning, and mesoporous silicon nanoparticles are obtained. The prepared mesoporous silica nanoparticle has a hollow structure with a particle size of 20 to 100 nm, a center cavity diameter is 5 to 20 nm, and a mesoporous diameter is 1 to 10 nm. The hollow mesoporous nanoparticles have the advantages that the poorly soluble drugs can be encapsulated, drug solubility and bioavailability are improved, and a new platform is provided for solubilization of the poorly soluble drugs.

Disclosed is kind of Vinorelbine solid lipid nanoparticles which comprise (by weight percent) vinorelbine 1-25%, grease material 30-90%, phospholipids 5-50% oleinic acid 0-20%. The preparing process consists of melting liposome material through water-bath, dissolving phosphatides, oleic acid and Vnorelbine with ethanol, dropping into the liposome material, removing ethanol under decompression condition, cooling down and freezing, placing into pH 2-5 aqueous phase, triturating and homogenizing the turbid liquor to obtain the freeze-dried preparation with improved anticancer reactivity of Vinorelbine.

The invention discloses a spherical nucleic acid fluorescent probe for telomerase activity detection and a preparation method and use thereof. The spherical nucleic acid fluorescent probe takes a goldnano particle as a carrier, and a double-stranded DNA is loaded on the surface of the carrier; one single-stranded DNA of the double-stranded DNA is a TP-chain long chain, the TP-chain long chain comprises a telomerase primer TP, a sequence and an auxiliary sequence complementary with a telomerase amplification sequence in turn from a 3' end; the other single-stranded DNA of the double-stranded DNA is a FL-chain short chain decorated by fluorochrome complementary with the TP-chain long chain. The spherical nucleic acid fluorescent probe overcomes heterogeneity of tumor cells, achieves universality detection of tumors on a molecular level, and can achieve cross-platform detection of the tumors from a molecule, a cell and a tissue to a living body and visual navigation for tumor surgeries.

The invention discloses a peptide dentritic macromolecular drug and a preparation method and application thereof, and belongs to the field of biomedicine. The drug comprises a peptide dentritic macromolecular skeleton, and terminal-group functionalized groups. The biological activity of the drug is ensured through the terminal-group functionalized groups; and the periphery of the peptide dentritic macromolecular drug can be grafted with a lot of terminal-group functionalized groups, so that the biological effect of the terminal-group functionalized groups is effectively amplified by the amplification effect of dendritic macromolecules. The drug has an accurate molecular structure and abundant surface functional groups, is good in water solubility, and also has the biological characteristics of being similar to globulin, easy to be taken in by cells and the like; the biological effect of the peptide dentritic macromolecules is enriched; and the development of peptide drugs is promoted. The preparation method is simple in technology; and the structure of the peptide dentritic macromolecular drug is accurately controlled by controlling preparation of various raw materials.

The present invention relates to the field of high oil-absorbing resin preparation, and discloses a preparation method of an embedded immobilized microbial ball. The method comprises the steps of: (1) preparation of the immobilized microbial particles; (2) preparation of an acrylate copolymer emulsion; and (3) preparation of the embedded immobilized microbial ball. The present invention also discloses a preparation apparatus of the embedded immobilized microbial ball. The apparatus includes an extrusion section, an insulation transport section and a moulding section. The extrusion section comprises an extrusion sections housing, an advancing screw and a rotary motor; the insulation transport section includes a tubular type conveying channel and a heater; and the moulding section comprises a moulding section housing and a pair of reverse gears provided with hemispherical grooves. The embedded immobilized microbial ball prepared by the present invention has high oil suction rate and large oil absorption capacity, and can degrade the adsorbed oil; and microbes have good stability and long survival time. At the same time, the preparation apparatus of the present invention requires mild conditions in the preparation process, protects the survival rate of the microbes to the maximum; and the prepared product has high dimensional stability.

A preparation method for an immobilized microbe oil-spill repairing agent is characterized by comprising the following steps: preparing peanut shell-based active carbon; mixing the peanut shell-based active carbon with a seed bacteria liquid to performing adsorption until adsorption is saturated, so as to form a bacteria suspension; adding a sterilized sodium alginate solution with a temperature of 30-40 DEG C into the above bacteria suspension, uniformly mixing, injecting into a CaCl2 solution with a certain concentration by employing an injector, dispersing into balls and performing crosslinking for 12-24 h, so as to obtain immobilized microbe microballoons; and finally flushing the immobilized microbe microballoons with normal saline for 2-4 times to obtain a finished product. According to the preparation method, the biology-based active carbon modified peanut shell is added into a sodium alginate-calcium chloride embedded immobilized carrier for the first time, the mechanical strength and the mass transfer property of the agent are improved, the activity and the degradation efficiency of microbes are improved; also the cost is low, the technology is simple and easy to operate, the reaction conditions are mild, microbes of the prepared repairing agent is not easy to leak, and the prepared repairing agent is good in stability and reusability, has relatively high microbe activity and cell capacity, and has petroleum hydrocarbon degradation rate of 75-92%.

The invention provides a multi-view stereo image shooting and playback system which uses a single lens to ensure that no ghost can appear on the focal plane image. In the system, the lens aperture is designed to N-numbered fixed sub-apertures or adjustable sub-apertures distributed on the same surface, wherein the fixed sub-apertures can be turned on or off independently; the adjustable sub-apertures can be turned on or off independently and used to adjust the effective clear aperture of the light-passing surface; a system circuit controls each sub-aperture to shoot N parallax image sequences, selects any two image sequences to be used as the parallax image sequence of the binocular stereo television system, adjusts the effective clear aperture of each sub-aperture to adjust the depth of field of each parallax image, selects any one parallax image pair, uses the position parameter and lens parameter of the corresponding aperture and the position parameter of an shot object on the image to calculate the spatial position and motion state of the shot object relatively to the lens, and selects a plurality of sub-apertures shot by any two to N-numbered parallax images to obtain a multi-view stereo image in one direction or any direction.

Relating to the high oil-absorption resin preparation field, the invention discloses a preparation method for a composite high oil-absorption resin. The method includes: (1) preparation of immobilized microbial microspheres: mixing modified mussel shell powder with a seed bacterial liquid, adding a sodium alginate solution into a bacteria adsorbing modified mussel shell powder solution, then injecting the mixed solution into a calcium chloride solution and conducting dispersion into balls, and conducting crosslinking to obtain immobilized microbial microspheres; (2) preparation of an acrylate copolymer emulsion: adding a methylacrylate monomer, styrene, an initiator and an emulsifier into water and conducting stirring emulsification; adding a crosslinking agent and a pore making agent into the emulsion to carry out reaction so as to obtain an acrylate copolymer emulsion; and (3) preparation of composite high oil-absorption resin: adding immobilized microbial microspheres, a coupling agent and cellulose into the acrylate copolymer emulsion, conducting stirring and then performing vacuum drying, thus obtaining the composite high oil-absorption resin. The composite high oil-absorption resin prepared by the method provided by the invention has fast oil absorption speed and large oil absorption capacity, and can carry out microbial degradation on oil.

The invention relates to a preparation method for an oral protein immune carrier, and belongs to the field of medicines. A single template agent is utilized at a room temperature, a mesoporous silica material is synthesized by adopting a sol-gel method. Mesoporous silica particles loaded with a model drug are prepared by adopting bovine serum albumin (BSA) as the model drug and mesoporous silica as a carrier; and the drug loading capacity is 20-21%. Chitosan (CS) is adsorbed on the surface of the mesoporous silica through the electrostatic interaction, so that the biological adhesiveness of the carrier is improved, and the medicine can be effectively prevented from being damaged by a gastrointestinal tract environment. In addition, positively charged chitosan mesoporous silica drug-loaded composite particles are more easily ingested by cells to induce body immunoreaction.

The invention provides a chilli cytoplasm male sterile line protoplast separation purification and callus forming method, which relates to the protoplast source, separation, purification and protoplast culture and callus forming and belongs to the field of biotechnology science. The method comprises the following steps that: 1, chilli cytoplasm male sterile line aseptic seedling main leaves are used as materials for separating the protoplast; 2, young tender blades are cut and are placed into a CPW9 enzymolysis solution containing cellulase, pectinase and macerozyme, and the solution is placed onto a 27 DEG C shaking bed for dark treatment; 3, the enzymolysis liquid is filtered by a 300-mesh nylon sieve, and the protoplast is collected after centrifugation washing; and 4, the obtained protoplast is cultured into a liquid culture medium containing hormone in different concentrations, and fresh culture media are regularly added in the period until the callus is formed. In the method, the chilli male sterile materials are used for carrying out protoplast separation and culture, and important significance is realized on further studying the protoplast fusion and using the fusion technology for realizing the development of the novel chilli cytoplasm male sterile line materials.

The invention provides an erythrocyte vesicle-derived drug for treating tumor, comprising erythrocyte vesicles and a therapeutic drug encapsulated in the erythrocyte vesicles. The erythrocyte vesiclesare vesicles released by apoptotic erythrocytes, and the therapeutic drug is a tumor therapeutic drug as an effective component for treating tumors. As the targeting drug, the drug can better targeton a tumor part, increases the pharmaceutical effect for chemotherapeutic drugs, and greatly mitigates the toxic and side effect of drug delivery and administration using an exogenous carrier on a body.

A preparation method for an immobilized microbe oil-spill repairing agent is characterized by comprising the following steps: preparing corncob-based active carbon; mixing the corncob-based active carbon with a seed bacteria liquid to performing adsorption until adsorption is saturated, so as to form a bacteria suspension; adding a sterilized sodium alginate solution with a temperature of 30-40 DEG C into the above bacteria suspension, uniformly mixing, injecting into a CaCl2 solution with a certain concentration by employing an injector, dispersing into balls and performing crosslinking for 12-24 h, so as to obtain immobilized microbe microballoons; and finally flushing the immobilized microbe microballoons with normal saline for 2-4 times to obtain a finished product. According to the preparation method, the biology-based active carbon modified corncob is added into a sodium alginate-calcium chloride embedded immobilized carrier for the first time, the mechanical strength and the mass transfer property of the agent are improved, the activity and the degradation efficiency of microbes are improved; also the cost is low, the technology is simple and easy to operate, the reaction conditions are mild, microbes of the prepared repairing agent is not easy to leak, and the prepared repairing agent is good in stability and reusability, has relatively high microbe activity and cell capacity, and has petroleum hydrocarbon degradation rate of 78-88%.

The invention belongs to the field of medicinal materials and provides a pH-sensitive phospholipid medicinal material. A structural formula of the material is as show in the specification, wherein R1 is -CnH(2n+1) or -CnH2n, n ranges from 11 to 17; R2 is shown in the specification, wherein a is equal to 0, 1, 2, b is equal to 0, 1, 2. A preparation method for the pH-sensitive phospholipid medicinal material comprises the following steps: (1), carrying out amidation reaction on phosphatidyl ethanolamine and lysine with a protective group; (2), modifying phospholipid by virtue of the lysine with the protective group to remove the protective group for reaction; and (3), carrying out amidation reaction on lysine-modified phospholipid and acid anhydride. The medicinal material has good pH sensitivity and charge reversal capacity; and a medicine-carrying lipidosome prepared by use of the medicinal material can be gathered in a targeted manner in a tumor tissue, so that toxic and side effect of medicines on a normal tissue can be reduced.

The invention relates to a cross-linked mitochondrial targeting doxorubicin liposome. The cross-linked mitochondrial targeting doxorubicin liposome is composed of doxorubicin hydrochloride, phospholipid, cholesterol and a cross-linkable mitochondrial targeting pegylated phospholipid medicinal material, a mass ratio of doxorubicin hydrochloride to the phospholipid is 1:(5-20), a molar ratio of the phospholipid to cholesterol to the cross-linkable mitochondrial targeting pegylated phospholipid medicinal material is (50-90):(2-47):(3-8), the structural formula of the cross-linkable mitochondrial targeting pegylated phospholipid medicinal material is shown in the specification, and n in the structural formula is 10, 12, 14 or 16. The invention also provides a preparation method of the liposome. The cross-linked mitochondrial targeting doxorubicin liposome has the advantages of mitochondrial targeting, large absorbed quantity of tumor cells, and high safety.

The invention discloses a processing method of non-additive germinated quinoa and brown rice noodles. The noodles are prepared from 100-110 parts by weight of flour, 15-25 parts by weight of quinoa pulp and 18-30 parts by weight of brown rice pulp. The processing method comprises processing steps as follows: selection of quinoa; selection of brown rice; germination of the quinoa; germination of the brown rice; grinding and smashing; dough kneading and curing; piece pressing and shredding; drying. The processing method aims to solve the problems of undernourishment caused by adoption of wheat meal as a single grain main raw material for preparation of a traditional noodle product, noodle quality reduction caused by mixed addition of outside nutrient substances as well as addition or illegal addition of a food modifier for quality improvement and the like.

The invention discloses an orthoester 5-fluorouracil prodrug molecule. The orthoester 5-fluorouracil prodrug molecule is N-5-fluorouracil1-ethyl-2-carbonalkoxy-(1,3) dioxolane-4-methylformamide havinga structure as shown in formula (I) described in the specification, wherein n=2-32 and m=n+2. The invention further discloses a preparation method of the abovementioned prodrug molecule and a nanoparticle prepared therefrom and an application thereof. The orthoester 5-fluorouracil prodrug molecule, the preparation method and the nanoparticle and the application thereof have the advantages that the nanoparticle prepared by the orthoester 5-fluorouracil prodrug molecule not only has the advantages of a small molecule prodrug but also is endowed with the advantage of a nano drug delivery system(that is a drug carrier), the prodrug nanoparticle not only has excellent acid degradation property and reduced tumor cytotoxicity and realizes passive targeting enrichment of a drug in a tumor, the nanoparticle has high drug loading capacity because the drug is used as a main part of the carrier, and the nanoparticle is capable of loading other antitumor drugs and achieves the effect of cooperatively treating the tumor and thus has good application prospects in the field of tumor treatment.

The invention discloses a ratiometric viscous flare fluorescent probe as well as a preparation method and application thereof. The probe uses gold nanoparticles as a carrier, and the surface of the carrier is connected with DNA (Deoxyribonucleic Acid) double chains with different fluorescent groups for identifying telomerase: FL-R flare long chain and SH-C-FL strand short chain with a partial complementary sequence of the long chain. The FL-R flare long chain comprises fluorescent dye, an auxiliary sequence, a complementary sequence of a telomere amplification sequence and a telomere primer sequence in sequence from a 5'end. No matter the telomere exists or not, the FL-R flare long chain is luminescent, and can be used as an internal fluorescence signal reference. The SH-C-FL strand shortchain is modified with sulfydryl at one end and modified with another fluorescent dye at the other end. In the presence of the telomere, the short chain is prolonged to form a hairpin structure and falls off from nanogold, and fluorescence is opened for in-situ detection of telomere activity in cells. In combination with a long-chain fluorescence signal, quantitative analysis of telomere activityin cancer cells and effective differentiation of tumor cells from normal cells can be realized. The probe can be directly applied to laser confocal imaging without cleaning during cell experiments.

Methods are described for producing reduced, methylated, biologically active forms of folate, including 5-methyltetrahydrofolate (i.e. 5-methyltetrahydropteroylglutamic acid), 5-formyltetrahydrofolate, 10-formyltetrahydrofolate and tetrahydrofolate. Edible mushroom-producing fungi are cultivated to enhance the uptake of pteroylmonoglutamate (synthetic folate) into edible portions of the plants. The mushroom-producing fungi reduce and methylate the pteroylmonoglutamates into activated folates. The cultivated mycelia or mushrooms of the mushroom-producing fungi are harvested, and may be consumed directly or processed into oral dosage formats (capsules, tablets, softgels, powders, gel packets, liquids, nutritional bars, beverages) for use as functional foods or nutritional supplements.

The invention discloses a cross-linkable mitochondrial targeting pegylated phospholipid medicinal material. Please see the structural formula of the cross-linkable mitochondrial targeting pegylated phospholipid medicinal material in the specification, wherein n is equal to 10, 12, 14 and 16. The preparation method includes the steps that fatty acid acyl phosphatidylethanolamine-polyethylene glycol(peg)-maleimide, polypeptide D- (KLAKLAK)2-C5 and organic base serve as raw materials, and the molecular ratio of the polypeptide to the organic base to the fatty acid acyl phosphatidylethanolamine-polyethylene glycol(peg)-maleimide is (1-3): (1-3):1; under protection of nitrogen, the fatty acid acyl phosphatidylethanolamine-polyethylene glycol(peg)-maleimide, the organic base and a first solvent are mixed so that a first solution can be obtained, the polypeptide is dissolves in a second solvent so that a second solution can be obtained, the first solution and the second solution are mixed, and a mixed solution is stirred to react for 12-8 h at the temperature of 20-40 DEG C. Medicine carrying liposome prepared from the medicinal material can further improve the tumor treatment effect, the toxic and side effects are reduced, and long-time preservation is facilitated.

Provided is an enteric gelatinous nutrient which can be safely and easily taken by a patient with dysphagia or a patient under tube feeding without causing gastro-esophageal reflux and a method for preparing the same. An enteric gelatinous nutrient having an appropriate physical value as specified below for preventing a patient with dysphagia or a patient under tube feeding from gastro-esophageal reflux: namely, immediately after mixing the enteric gelatinous nutrient with an aqueous solution having a definite pH value at a weight ratio of 3:7 and gently stirring for 5 seconds, the elution ratio of nutritional components being from 0 to 0.2. An enteric gelatinous nutrient having a physical value as specified below: namely, after mixing the enteric gelatinous nutrient with an aqueous solution having a definite pH value at a weight ratio of 3:7, allowing the mixture to stand for 30 minutes and then gently stirring for 5 seconds, the elution ratio of nutritional components being from 0 to 0.45.

The invention discloses an amphiphilic derivative of oil acylated chitosan oligosaccharide guanidine grafted polyethyleneimine and a preparation method thereof. The amphiphilic derivative takes low molecular weight polyethyleneimine and chitosan oligosaccharide as a low cytotoxicity template, and then introduces guanidyl and lipophilic segment-oleoyl. The derivative takes the chitosan oligosaccharide as a base, so that non-toxicity and high bioactivity can be endowed to the derivative; nuclear localization ability, high transfection efficiency and lower cytotoxicity can be endowed to the derivative by introducing the guanidyl; and through the introduction of the lipophilic segment, the derivative can have amphipathy, so that the derivative is easier to take in by cells.

The invention provides an ecological restoration method for a black and odorous river channel, and belongs to the technical field of sewage treatment. According to the method, ecological restoration is carried out on the black and odorous river channel from five aspects of source control and sewage interception, bottom mud treatment, water body purification, ecological restoration and maintenance management, and the method is high in operability, thorough in treatment and high in treatment efficiency; through reconstruction of a riverway ecological system, the self-cleaning capacity of the water body is gradually restored, the peculiar smell and chroma of the black and odorous water body are gradually eliminated, finally ecological balance of the water body is achieved, the water quality is improved, the water body ecological system can be healthily and stably developed for a long time, and good environment-friendly and ecological functions are achieved.

The invention discloses a preparation method of a resin adsorbent based on composite kieselguhr. The kieselguhr is adopted as a first carrier, a resin is adopted as a second carrier, and a microorganism strain is fixed. The resin is prepared through the steps of adding 5 to 20 parts by weight of kieselguhr immobilized microorganism, 0.1 to 0.5 part by weight of a coupling agent, 1 to 3 parts by weight of butyl hydroxy anisd and 1 to 5 parts by weight of tetrahydrocannabinol into an acrylate copolymer emulsion, uniformly stirring at the normal temperature at low speed, and vacuum drying to obtain the resin adsorbent based on the composite kieselguhr. The adsorbent prepared through the method has the advantages of fast oil absorption speed, high oil absorption capacity, long microorganism preservation time, long service life and the like.

The invention relates to a self-assembled nucleic acid nanotube preparation as well as a preparation method and application thereof. The preparation comprises mTOR siRNA as shown in a sequence SEQ ID NO: 1, L as shown in sequence SEQ ID NO: 2, M as shown in sequence SEQ ID NO: 3, S as shown in sequence SEQ ID NO: 4, and S' as shown in sequence SEQ ID NO: 5; nucleic acid in which single-strand nucleic acid molecular bases supplement each other and are paired is crosslinked into a tubular nucleic acid nanotube preparation. The preparation enables double coiling of siRNA and is self-assembled into a nanotube system, so that siRNA is difficultly degraded by nuclease, and a compound nanotube structure can be generated; therefore, the advantage that nanoparticles are easily absorbed by cells is brought into full play, and the transfection efficiency of cells can be obviously improved; the siRNA can stably enter the cell structure, the original biological activity can be remained, the autophagy and cell proliferation can be adjusted and controlled, the abnormal growth of pulmonary arterial smooth muscle cells can be effectively inhibited, and the self-assembled nucleic acid nanotube preparation can be applied to preparation of medicines for treating pulmonary hypertension.

The invention discloses a hydrogen peroxide responsive ratio meter nanoprobe and its use. The nanoprobe comprises a hydrogen peroxide-responsive fluorescent molecule, a hydrogen peroxide-inert fluorescent molecule and a polymer with good biocompatibility. The invention also discloses a use of the hydrogen peroxide responsive ratio meter nanoprobe in preparation of a detection agent of circulatingtumor cells in peripheral blood of malignant solid tumors. The ratio meter nanoprobe has good water solubility, can be easily taken, has low cytotoxicity and can be used for quantitative imaging of hydrogen peroxide in circulating tumor cells. The ratio meter nanoprobe has excellent fluorescence properties, has good sensitivity and specificity to hydrogen peroxide and can detect difference of levels of hydrogen peroxide in malignant solid tumor cells and difference of intracellular intake amounts.

The invention discloses a magnetic composite nano material and a preparation method and application thereof. The magnetic composite nano material comprises modified magnetic nano particles and a modified macromolecular layer located on the outer surfaces of the modified magnetic nano particles, wherein the modified macromolecular layer comprises macromolecules and polymers connected with the macromolecules through pH response groups, and the response pH value of the pH response groups is smaller than 6.8. The magnetic composite nano material exists in a cluster form before reaching a tumor part, and due to the large particle size, the magnetic composite nano material is not likely to be rapidly removed by kidney metabolism; after the magnetic composite nano material reaches the tumor part,an assembly (the magnetic composite nano material) is gradually dispersed under the tumor subacid condition, the magnetic composite nano material exists in the tumor part in a small-particle-size magnetic nano particle form, and therefore the penetration depth of tumor tissue is increased; and due to falling of the surface modification polymers, surface positive charges are increased, and the nano particles are more easily taken by cells. Therefore, the pH response type magnetic composite nano material cluster enhances the MRI imaging contrast effect and improves the tissue penetration.

A magnetic nanoball carrying cisplatin is disclosed, which can be used as the medicine carrier to provide magnetic targetability. Its preparing process includes such steps as preparing the carboxypolyose modified Fe3O4 nanopartieles by chemical codeposition method under existence of carboxypolyose, and coordination between the free carboxy in carboxypolyose on the surface of Fe3O4 nanoparticle and Pt atoms for coupling the cisplatin with said nanoparticle. It can be used for the controlled slow-release medicine applying system.