Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

30results about How to "Good sustained release effect" patented technology

Production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.
Owner:贵州盈丰农业发展有限公司

Essential oil microcapsule powder with high oil loading capacity and preparation method thereof

The invention discloses essential oil microcapsule powder with high oil loading capacity and a preparation method thereof, and belongs to the technical field of microcapsules, the preparation method comprises the following steps: preparing a gelatin aqueous solution, preparing an Arabic gum aqueous solution, preparing an Arabic gum-starch aqueous solution, preparing a chitosan-tannic acid aqueous solution, preparing an emulsion, and performing primary crosslinking. Performing secondary crosslinking; the essential oil microcapsule powder prepared by the invention not only has high oil loading capacity and low surface oil content, but also has excellent slow release performance, solubility, long-term controlled release performance and flowability, and is uniform in particle size distribution.
Owner:COSMETICS BIOTECHNOLOGY (SHANDONG) CO LTD

A humic acid organic-inorganic compound fertilizer for slow release and improving fertilizer utilization rate and a preparation method thereof

The application belongs to the technical field of fertilizers, and particularly relates to a humic acid organic-inorganic compound fertilizer with slow release and improved fertilizer utilization rate and a preparation method thereof. The humic acid organic-inorganic compound fertilizer comprises the following raw materials in parts by weight: 22-30 parts of biogas residue, 35-55 parts of humic acid, 8-13 parts of fine columnar algae powder, 5-8 parts of urea, 12-17 parts of ammonium sulfate, 12-15 parts of superphosphoric acid calcium, 15-20 parts of potassium sulfate and 10-15 parts of slow release coating suspension. Test results show that the humic acid organic-inorganic compound fertilizer with slow release and improved fertilizer utilization rate prepared by the application can reduce the nitrogen and phosphorus release rates of the humic acid inorganic compound fertilizer, has better slow release effect, significantly promotes the plant height, stem diameter and root length of soybeans and corn, has obvious growth promotion effect, and has wide application prospect.
Owner:SHANXI JINFENG BIOTECHNOLOGY CO LTD

Preparation method of cellulose material for delaying CO2 release from water

ActiveCN117362456BGood sustained release effectImprove adsorption capacity
This invention provides a method for preparing cellulose materials that delay CO2 release from water, belonging to the field of carbon emission reduction applications. It involves modifying cellulose materials with amine groups to form biodegradable cellulose materials loaded with tertiary or secondary amine groups. The epoxidation grafting method in this invention achieves cellulose modification through alkali treatment, epoxidation, and amination grafting; the glutaraldehyde crosslinking method uses glutaraldehyde as a crosslinking agent to connect the cellulose material and organic amines to achieve cellulose modification. This method further increases the residence time of CO2 in water by adsorbing and converting CO2. Compared with unmodified cellulose materials, the modified material can reduce the amount of CO2 released from water by more than 60%, which helps to construct a CO2 slow-release system in water and can assist in improving the actual utilization efficiency of CO2 gas by microorganisms.
Owner:NANJING TECH UNIV

Isaria fumosorosea and its application in preventing and treating pine wood nematode disease

This invention discloses a fungal encapsulation agent for *Ischemicula elais* and its application in the control of pine wilt disease, belonging to the field of microbial control technology. This invention uses *Ischemicula elais* as the functional microorganism, combined with carrier materials, additives, and active ingredients to prepare a solid microbial encapsulation agent. The shelf life of *Ischemicula elais* spores at room temperature is extended from 2-3 days for traditional spore solutions to over 3-6 months, and up to 12 months under 4°C refrigeration, solving the problem of inconvenient low-temperature storage in mountainous areas. The microencapsulation components form a slow-release protective layer, preventing activity loss caused by environmental factors such as high temperature and drought.
Owner:LINYI UNIVERSITY

Seaweed-based composite water-soluble fertilizer and preparation method thereof

The invention discloses a seaweed-based composite water-soluble fertilizer and a preparation method thereof, and belongs to the technical field of functional fertilizers, gel microspheres embedded with bacillus subtilis are adsorbed and fixed through a composite seaweed carbon porous carrier, so that the gel microspheres have a good slow-release effect, seaweed belongs to a renewable marine biomass resource and is wide in source and relatively low in cost, and the seaweed-based composite water-soluble fertilizer has a good slow-release effect. Meanwhile, the introduced bacillus subtilis functional component and castor oil polyether polyol are environment-friendly substances, so that the soil residue risk caused by chemical synthesis of an additive is avoided; the seaweed-based composite water-soluble fertilizer can achieve accurate release, on one hand, due to the water absorption swelling effect of the gel microspheres, release of bacillus subtilis in the gel microspheres can be promoted; on the other hand, the metal complex serving as the bridge is PH responsive, and can be matched with organic acid secreted by microorganisms in the soil in acid soil to promote structural collapse of the metal complex, so that the gel microspheres rapidly fall off and are released.
Owner:烟台绿云生物科技有限公司

Fertilizer synergist prepared from aspartic acid, alginate oligosaccharide, mannan oligosaccharide and magnetic polysaccharide by taking fertilizer as carrier and preparation method of fertilizer synergist

The invention relates to a fertilizer synergist and a preparation method thereof, in particular to a fertilizer synergist which is based on natural components such as modified aspartic acid, alginate oligosaccharide, mannan oligosaccharide and magnetic polysaccharide and takes a fertilizer as a carrier. According to the fertilizer synergist, through the innovative modification of the modified aspartic acid and the synergistic effect of the natural polysaccharide, the utilization efficiency and the slow release property of a fertilizer and the nutrient absorption capacity of crops are remarkably improved. Compared with the traditional fertilizer synergist, the synergist disclosed by the invention can prolong the release time of nutrients, reduce the loss of the fertilizer and improve the yield of crops, has better environmental friendliness, and reduces possible pollution to soil and water in the fertilizer application process. The fertilizer synergist disclosed by the invention has remarkable advantages in the aspects of improving the fertilizer utilization rate, crop growth and soil environmental protection. The fertilizer synergist provides an efficient, environment-friendly and sustainable technical solution for agricultural production.
Owner:HONG KONG AMERICAN BIOTECHNOLOGY (JILIN) CO LTD

Medical patch with medicine loading groove

ActiveCN224403871UHigh drug loadingGood sustained release effectPharmacy medicinePharmaceutical drug
The utility model discloses a medical dressing with medicine loading groove, medical dressing includes polyurethane film and antiseized layer, be equipped with a plurality of medicine loading groove on the polyurethane film, be equipped with hydrogel layer in the medicine loading groove, fill in the medicine of hydrogel layer, one side of the antiseized layer with polyurethane film is equipped with medicine loading groove and is close -fitted. The utility model discloses medical dressing is equipped with medicine loading groove on polyurethane film, fills hydrogel layer in medicine loading groove inner chamber, and the medicine is loaded in hydrogel, can promote the slow -release capacity of medical dressing. The medicine is distributed on the slow -release skeleton, and the slow -release skeleton is prepared through three -dimensional micro -nanometer printing, and the inner chamber is hollow, and the shape of slow -release skeleton is customized according to the shape of medicine loading groove, makes the quantity of slow -release skeleton in medicine loading groove maximization, forms medicine -skeleton load structure, can accommodate more medicine in medicine loading groove to good slow -release effect.
Owner:TONGJI HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI TECH

Double-layer hydrogel suitable for interior of bladder

PendingCN121943795AGood mucoadhesive propertiesBlock direct contactOrganic active ingredientsAerosol deliveryPharmaceutical drugBioavailability
The invention relates to the technical field of biomedical administration, and particularly discloses double-layer hydrogel suitable for the interior of a bladder. The double-layer hydrogel comprises a hydrophilic adhesion slow-release layer and a hydrophobic protective layer; the hydrophilic adhesive slow-release layer and the hydrophobic protective layer are respectively obtained by curing a hydrophilic adhesive slow-release hydrogel precursor solution and a hydrophobic protective hydrogel precursor solution. By adopting a layered progressive double-hydrogel synergistic structure, an integrated administration barrier of mucous membrane adsorption-drug sustained release-physical protection is formed, so that the double-layer hydrogel has excellent bladder mucous membrane adhesion performance in a water environment and a stable and controllable drug sustained release effect, and the problems that an existing bladder perfusion drug is easily diluted and washed by urine, and the drug sustained release effect is poor are solved. The medicine action time is short, and the bioavailability is low.
Owner:THE FIRST AFFILIATED HOSPITAL OF GUANGZHOU MEDICAL UNIV (GUANGZHOU RESPIRATORY CENT)

A drug-loaded HNTs encapsulation and a preparation method and application thereof

ActiveCN117180230Bprevent over-releasefast packSalicyclic acid active ingredientsInorganic non-active ingredients
This invention provides a drug-loaded halloysite material, its preparation method, and its application. The drug-loaded halloysite material is prepared from halloysite, a drug, and an encapsulation material. Halloysite has good loading and sustained-release effects on drugs such as ciprofloxacin, diclofenac sodium, and nicotinic acid. Encapsulation with the encapsulation material further delays the release of the drug, resulting in slow release in the intestine and stomach, achieving targeted and controlled release. In addition, its preparation method is simple and can achieve rapid encapsulation, further avoiding drug loss during the encapsulation process. It can be used in the biomedical field, especially in the application of sustained-release drugs and intestinal targeted drug delivery, showing good application prospects.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

A traditional Chinese medicine combined formula of a stasis-removing and swelling-reducing plaster and a preparation process thereof

PendingCN122251506AProlong the action timeActs to activate blood circulation, dissipate blood stasis and relieve painAntipyreticAnalgesicsBiotechnologyFormulary
The present application relates to plaster preparation technical field, disclose a kind of traditional Chinese medicine combination formula of dissolving blood stasis and reducing swelling and preparation process thereof, including dragon's blood 60 parts, xiaoshang 60 parts, chuanqiong 60 parts, red shao 60 parts, baizhi 60 parts, sea scallop 60 parts, raw dahuang 60 parts, purple jingpi 60 parts, gusuibu 60 parts, safflower 30 parts, xiaocin 30 parts, angelica 90 parts, prepared frankincense 90 parts, prepared myrrh 90 parts, mulberry bark 120 parts, artificial musk 10 parts, sesame oil 1200 parts, yellow wax 300 parts.The plaster provided by the present application can promote blood circulation to remove blood stasis and relieve pain, is suitable for long-term use for joint sprain without open wound and purplish swelling and pain, and the action time is up to 48 hours, can kill bacteria and relieve itching when being pasted on the skin of patient, prevent allergic reaction and bacterial infection caused by too long pasting time.
Owner:ZHEJIANG PROVINCIAL LITONGDE HOSPITAL (ZHEJIANG PROVINCIAL INST OF MENTAL HEALTH)

Starch-plant polyphenol co-crystal, preparation method thereof and application thereof in functional food

This invention discloses a starch-plant polyphenol cocrystal, its preparation method, and its application in functional foods, relating to the field of functional food technology. The preparation method includes: S1, mixing starch and plant polyphenols uniformly to obtain a mixture; S2, adding the mixture to a low-temperature impact mill, adding grinding media, and introducing an inert gas into the low-temperature impact mill to subject the mixture to impact treatment, obtaining a cocrystal complex; S3, purifying and freeze-drying the cocrystal complex to obtain the starch-plant polyphenol cocrystal. This invention innovatively uses wheat starch and proanthocyanidins to form a cocrystal structure, resulting in a simpler and more efficient preparation process, eliminating the need for complex physical field treatments or multiple freeze-drying steps, and maximizing the preservation of polyphenol activity. The cocrystal structure endows the carrier with excellent sustained-release performance, enabling long-term release of polyphenols in functional food applications, solving the problems of unstable loading rates and poor sustained-release effects in existing technologies.
Owner:NANCHANG UNIV +1

Walnut-based fragrance-carrying granular material with slow-release performance as well as preparation method and application of walnut-based fragrance-carrying granular material

PendingCN121780250AIncrease expansionEnhanced lysisTobacco preparationEssential-oils/perfumes
The invention relates to a walnut-based fragrance-carrying granular material with slow release performance and a preparation method and application thereof, and the preparation method comprises the following steps: (1) carrying out microwave treatment on a walnut shell crushed material to obtain a modified walnut shell crushed material; (2) mixing the crushed walnut shells with liquid essence, and carrying out adsorption treatment to obtain fragrant walnut shell particles; and (3) carrying out film coating treatment on the fragrance-carrying walnut shell particles by using a film forming solution, and then drying and screening to obtain the walnut-based fragrance-carrying particle material with the slow-release performance. According to the invention, by virtue of a three-step synergistic technology of microwave modification, adsorption fragrance carrying and film coating, high adsorption, high stability and slow release performance which are difficult to achieve by a common natural fragrance carrying material are realized, and the composite material is suitable for multiple fields of foods, tobaccos, daily chemicals and the like.
Owner:NANTONG CIGARETTE FILTER

A scale-inhibiting and bactericidal water treatment material and its preparation method

This invention provides a method for preparing a scale-inhibiting and bactericidal water treatment material, belonging to the technical field of water treatment materials. The method includes the following steps: adding PSI and water and stirring to disperse; adding L-histidine and NaOH; heating and reacting to obtain a histidine-modified polyaspartic acid solution; adjusting the pH to neutral; adding ferric ammonium citrate and ascorbic acid; stirring and reacting to obtain an iron-containing complex mixed solution; dissolving β-cyclodextrin in water; adding succinic anhydride and reacting; then adding an ε-polylysine aqueous solution; using EDC and NHS as condensing agents; stirring and reacting; dialysis and filtration to obtain a polylysine-cyclodextrin complex solution; adding the polylysine-cyclodextrin complex solution dropwise to the iron-containing complex mixed solution; ultrasonically stirring; adding sodium citrate and molten PEG-6000; heating and mixing; extruding; and drying to obtain the finished product. The scale-inhibiting and bactericidal water treatment material obtained by this invention can achieve efficient scale inhibition while also possessing bactericidal function, and its components are safe and environmentally friendly.
Owner:SHAANXI LONGYU INT TECH GRP CO LTD

Biological denitrification composite carbon source for sewage plant and preparation method thereof

This invention provides a method for preparing a biological denitrification composite carbon source for wastewater treatment plants, belonging to the field of wastewater treatment. The method includes the following steps: 1. Crushing kitchen waste residue, treating it in boiling water, cooling it, and then fermenting it to obtain a carbon source fermentation broth; 2. Filtering the carbon source fermentation broth, adding an accelerator and straw fragments to the liquid-phase carbon source broth to obtain a liquid-phase carbon source, mixing the liquid-phase carbon source and solid-phase carbon source evenly, and crushing them to obtain a carbon source mixture; 3. Spraying an alkenylated polyvinyl alcohol solution onto the surface of the carbon source mixture, molding it, and drying it to obtain the aforementioned biological denitrification composite carbon source for wastewater treatment plants. The biological denitrification composite carbon source prepared by this invention can simultaneously and slowly release the solid and liquid components in the carbon source fermentation broth, and also promotes the effective utilization of the carbon source by denitrifying bacteria, exhibiting good denitrification utilization.
Owner:ZHEJIANG KECHAO ENVIRONMENTAL PROTECTION

Slope consolidation material based on carbon-iron synergistic microbial mineralization and application method thereof

The invention belongs to the technical field of soil reinforcement and ecological restoration, and particularly discloses a slope consolidation material based on carbon-iron synergistic microbial mineralization and an application method thereof, and the application method comprises the following steps: preparing a carbon-iron-containing consolidation base material, laying the carbon-iron-containing consolidation base material on the surface layer of a to-be-treated slope, and compacting; spraying a urease-producing microbial bacterial liquid to the slope surface on which the carbon-iron-containing consolidation base material is laid; after spraying the urease-producing microbial bacterial liquid for 1-4 hours, spraying a calcium-containing cementing liquid to the slope surface; and naturally curing for 7-28 days to form a microbial mineralization consolidation layer on the surface layer of the slope surface. The microbial mineralization consolidation layer obtained by the invention has the advantages of high compressive strength, strong wind erosion resistance, good water retention capacity, better ecological compatibility and the like, and is suitable for protection and ecological restoration of loess sandstorm slope surfaces and side slope surface layers.
Owner:YUHENG POWER STATION OF SHAANXI HUADIAN YUHENG COAL POWER CO LTD +2

Human epidermal growth factor temperature-sensitive sustained-release gel and preparation method and application thereof

The invention discloses a human epidermal growth factor temperature-sensitive sustained-release gel as well as a preparation method and application thereof, and belongs to the technical field of biological pharmacy. The preparation method of the human epidermal growth factor temperature-sensitive sustained-release gel comprises the following steps: S1, adding poloxamer and a thickening agent into purified water, and uniformly mixing to form a gel matrix; s2, respectively preparing a human epidermal growth factor solution and a chitosan-sodium tripolyphosphate colloid, and adding the human epidermal growth factor solution into the chitosan-sodium tripolyphosphate colloid for adsorption to obtain the chitosan-sodium tripolyphosphate colloid loaded with the human epidermal growth factor; s3, adding the chitosan-sodium tripolyphosphate colloid loaded with the human epidermal growth factors, a humectant and a stabilizer into the gel matrix, and adjusting the pH value. The gel can realize stable loading and controllable slow release of the human epidermal growth factor, so that the administration frequency and repeated administration operation are reduced, and the gel has important application value in treatment of refractory wounds.
Owner:SHENZHEN WATSIN GENETECH +1

Pillar[n]arene derivative-dcoit sustained-release supramolecular self-assembly, applications and preparation methods

The application relates to the technical field of supramolecules, in particular to a pillar[n]arene derivative-DCOIT slow-release supramolecular self-assembly body, application and a preparation method. The supramolecular self-assembly body loads DCOIT by taking a pillar[n]arene derivative as a molecular carrier; the pillar[n]arene serving as the carrier can form a supramolecular assembly body with DCOIT through hydrogen bond interaction between pi and CH2, the host-guest complexation of the two is strong, and the pillar[n]arene derivative can effectively control the slow release of DCOIT; the supramolecular self-assembly body is good in safety and stability, low in cost, beneficial to industrialized production, and wide in application field; the method is simple in operation, low in preparation cost, easy to realize, and beneficial to industrial promotion.
Owner:WUHAN INST OF TECH +1

Long-acting formulation compositions of relugolix

The invention discloses a Rurugolil long-acting preparation composition as well as a preparation method and application thereof. The composition comprises an active medicine and at least one suspending aid. The Rurugolil long-acting preparation composition has an excellent slow-release effect, the administration interval can be prolonged to 7-90 days per time from 1 day per time, and the bioavailability, the compliance and the safety of a patient are remarkably improved. The pharmaceutical composition disclosed by the invention has the advantages of high preparation stability, simple prescription, controllable preparation process and capability of realizing industrial production amplification.
Owner:QILU PHARMA CO LTD

Preparation method of pH gradient active drug loading type maqui berry anthocyanin-curcumin compound liposome

The invention discloses a preparation method of pH gradient active drug loading type maqui berry anthocyanin-curcumin compound lipidosome, belongs to the fields of biological medicines, food science and nutritional health-care products, and particularly relates to a nano drug delivery system and preparation of functional foods and dietary supplements. According to the method, the water-soluble maqui berry anthocyanin and the fat-soluble curcumin are efficiently entrapped at the same time by utilizing a unique double-layer structure of the lipidosome and through a film dispersion-hydration technology. Soybean lecithin and cholesterol are used as main membrane materials, tea polyphenol or vitamin E and other antioxidants are combined, and curcumin is induced to transmembrane-transfer from a lipid bilayer membrane to an internal water phase through precise pH gradient control and mild heating, so that the encapsulation efficiency of curcumin is remarkably improved. Then, through the steps of high-pressure microjet homogenization, low-temperature dialysis and the like, the maqui berry anthocyanin-curcumin compound liposome which is uniform in particle size, high in stability and excellent in encapsulation efficiency is prepared.
Owner:HUBEI LUYU FOOD THERAPY PHARMACEUTICAL TECHNOLOGY CO LTD

A slow-release cleaning device for a toilet cistern

ActiveCN224647781Uslow down the dissolution ratePerfect control of release timing
A slow-release cleaning device for toilet tanks includes a bottle, a first buoyancy plug, and a second buoyancy plug. The bottle contains a cavity for holding cleaning agents, and the side wall of the cavity has a guide hole and an air pressure hole for connecting to the outside. The first buoyancy plug is movably installed at the guide hole and can open or close the guide hole as the water level in the tank rises. The second buoyancy plug is movably installed at the air pressure hole and can open or close the air pressure hole as the water level in the tank rises. A water cut-off level and a water flow range are formed between the guide hole and the air pressure hole from top to bottom, and the water cut-off level is not lower than the air pressure hole. When the water level in the tank is in the water flow range, water enters the cavity from the guide hole. When the water level rises to the water cut-off level, the cavity is filled with water, the first buoyancy plug floats up to close the guide hole, and the second buoyancy plug floats up to close the air pressure hole. This solution can perfectly control the release timing of the cleaning agent, further avoiding excessive dissolution and release of the cleaning agent, thus enhancing the slow-release effect.
Owner:胡汉灵

Seaweed organic fertilizer beneficial to adjustment of soil microorganisms and preparation method of seaweed organic fertilizer

PendingCN121758214Aprolong survival timeincrease loadFertilizer mixturesMicroorganismGrowth plant
The invention discloses a seaweed organic fertilizer beneficial for adjusting soil microorganisms and a preparation method thereof, and belongs to the technical field of bio-fertilizers, the organic fertilizer contains macroelements nitrogen, phosphorus and potassium necessary for plant growth, also contains medium elements calcium, magnesium and sulfur necessary for plant growth, and trace elements boron, iron and zinc, can effectively promote plant growth, and has a good application prospect. The enzyme activity is improved, the vegetative growth and reproductive growth capacities of plants are enhanced, the crop yield is further improved, the survival time and the loading capacity of microorganisms can be improved through the design of the double-shell core-shell structure, and the utilization rate of nutrients is further improved.
Owner:SHANDONG LEI LI GREEN FERTILIZER CO LTD

Environment-friendly urea slow-release fertilizer and preparation method thereof

The application belongs to the technical field of fertilizers, and particularly relates to an environment-friendly urea slow-release fertilizer and a preparation method thereof. The preparation method of the urea slow-release fertilizer comprises the following steps: S1. Modified sodium-based montmorillonite is added to water, and a modified sodium-based montmorillonite suspension is obtained after ultrasonic dispersion; urea and puhuizi polysaccharide are uniformly mixed and preheated to obtain mixed particles; S2. The modified sodium-based montmorillonite suspension is sprayed on the surface of the mixed particles, and the environment-friendly urea slow-release fertilizer is obtained after drying. The method is simple and easy to operate, and the obtained fertilizer has excellent slow-release performance.
Owner:DALIAN WOBARA TECH DEV CO LTD

Environment-friendly bio-organic fertilizer and preparation method thereof

The application belongs to the technical field of microbial fertilizer, and particularly relates to an environment-friendly biological organic fertilizer and a preparation method thereof.The environment-friendly biological organic fertilizer comprises the following raw materials in parts by weight: 70-90 parts of fermented organic matter, 8-13 parts of microbial agent and 10-15 parts of coated suspension.The test results show that after the environment-friendly biological organic fertilizer is applied to soil, the growth of crops can be effectively promoted, the yield of crops is improved, the nutritional quality and edible safety of crop fruits are significantly improved, and the environment-friendly biological organic fertilizer has a wide application prospect.
Owner:SHAANXI GELIDA BIOTECHNOLOGY CO LTD

Iodinated oil emulsion gel with slow-release function and preparation method of iodinated oil emulsion gel

The invention relates to the technical field of biomedical materials, in particular to iodinated oil emulsion gel with a slow release function and a preparation method of the iodinated oil emulsion gel. The invention provides iodinated oil emulsion gel with a slow release function, the iodinated oil emulsion gel comprises an oil phase, a water phase and magnetic response amphiphilic particles, the oil phase is prepared by compounding oleic acid modified magnetic nanoparticles and iodinated oil; the water phase is prepared by dissolving a medicine in deionized water; the magnetic response amphiphilic particles are prepared by carrying out amination modification treatment on magnetic nanoparticles. The preparation method comprises the following steps: preparing oleic acid modified magnetic nanoparticles, compounding the oleic acid modified magnetic nanoparticles with iodinated oil to obtain magnetic iodinated oil, synthesizing magnetic response amphiphilic particles through multiple steps, and matching the magnetic response amphiphilic particles with a drug-containing aqueous phase and a gel agent to successfully prepare iodinated oil emulsion gel with a slow release function, and the iodinated oil emulsion gel has good centrifugal stability.
Owner:SHENZHEN CHILDRENS HOSPITAL

A sustained-release microcapsule and a method for preparing the same

PendingCN122581459Aachieve targeted releasefree from degradation
This invention provides a sustained-release microcapsule and its preparation method. The sustained-release microcapsule comprises: a porous carrier core; an active ingredient loaded within the pores of the porous carrier core; and a bilayer membrane structure covering the outer layer of the porous carrier core. The bilayer membrane structure includes an inner membrane and an outer membrane, with the inner membrane located between the porous carrier core and the outer membrane. The inner membrane is a pH-responsive protective layer that maintains structural stability in acidic environments and swells and disintegrates in weakly alkaline environments. The outer membrane is a flavor-regulating layer for the sustained-release flavor substances. The porous carrier core of this invention provides a large specific surface area and pore structure, effectively solving the problems of easy oxidation and stratification of the active ingredient. The inner membrane protects the active ingredient from degradation in the acidic environment of the stomach and rapidly swells and disintegrates in the weakly alkaline environment of the small intestine, significantly improving bioavailability. The outer membrane improves the palatability of the product.
Owner:QINGDAO GUOHAI BIO-PHARM CO LTD

A sustained-release insecticidal suspension and a preparation method thereof

ActiveCN117481135BImprove solubilityAvoid Ostrich's Ripe PhenomenonBiocideAnimal repellantsCypermethrinThiamethoxam
This application relates to the field of insecticide technology, specifically to a slow-release insecticidal suspension and its preparation method. The insecticidal suspension comprises the following raw materials in weight percentages: 8%–30% thiamethoxam, 7%–20% lambda-cyhalothrin, 0.1%–2% slow-release agent, 3%–10% emulsifier, 1%–5% dispersant, 1%–5% silica, 1%–5% activated clay, 0.1%–2% xanthan gum, and water to 100%. The dispersant includes a first dispersant and a second dispersant; the first dispersant is sodium lignosulfonate, and the second dispersant is one or both of sodium maleic acid-acrylic acid copolymer and sodium naphthalenesulfonic acid formaldehyde polymer. The slow-release insecticidal suspension of this invention avoids Austronesian maturation, has good dispersibility, can be processed into high-concentration formulations, has low packaging costs, good stability, long shelf life, high suspension rate, and good slow-release effect.
Owner:河北省张家口市农业技术推广站

An adjustable underwater feed slow release device

This utility model discloses an adjustable underwater feed slow-release device, including: a feed propulsion device and a feed storage device detachably installed on one side of the feed propulsion device. The feed storage device includes a shell, a storage chamber, and an output pipe. The storage chamber is located on one side of the feed propulsion device, and the output pipe is located on the side of the storage chamber away from the feed propulsion device. The shell is sleeved around the storage chamber and the outer periphery of the output pipe. The output end of the output pipe is fish-mouth shaped and has an observation window. The storage chamber has multiple through holes, which allows the feed slow-release device to quantify and continuously replenish feed additives, making the slow-release effect of feed additives more uniform and long-lasting, improving the effect and efficiency of feed additive slow release, and reducing the slow-release mixing cost of feed additives. At the same time, the feed slow-release device can be precisely dispensed by a fan blade driven by a motor.
Owner:JINZHAI COUNTY AGRI & RURAL AFFAIRS BUREAU

Multifunctional high-efficiency carbon sequestration fertilizer based on iron-based nanoparticles addition and preparation method thereof

The application provides a multifunctional high-efficiency carbon fixation fertilizer based on iron-based nanoparticle addition and a preparation method thereof, and belongs to the technical field of agricultural fertilizers.The application realizes the organic combination of organic fertilizer and inorganic fertilizer through the multi-element compounding of raw materials, can effectively promote the conversion of organic matter in the organic fertilizer into soil organic matter by adding iron-based nanoparticles such as nano-Fe3O4 or nano-zero-valent iron as the main representative under the condition of ensuring sufficient supply of crop nutrients, and significantly improves the soil carbon fixation capacity.The application does not reduce the efficacy of microbial agents and humic acid, can improve soil microbial activity, is environmentally friendly, can promote plant growth and development, and improves crop yield and quality.The multifunctional fertilizer prepared by the application has good fertilizer slow-release effect, long slow-release time, simple preparation method, low cost, and good popularization and application value.
Owner:JILIN ACAD OF AGRI SCI

High-stability peach gum polysaccharide nanoemulsion loaded with hydrophobic functional molecules and preparation method thereof

PendingCN122251336AEffectively regulate hydrophilicityEffectively control balanceCosmetic preparationsToilet preparationsThioctic AcidSelf emulsifying
The application discloses a high-stability peach gum polysaccharide nanoemulsion loaded with hydrophobic functional molecules and a preparation method thereof, and relates to the field of natural polymer materials and nanotechnology. The peach gum polysaccharide is chemically modified by thioctic acid, the balance of hydrophilicity and hydrophobicity in the molecular structure is effectively regulated, and thus the peach gum polysaccharide is endowed with excellent self-emulsifying capacity. A plurality of hydrophobic functional components can be efficiently loaded without additional addition of synthetic emulsifiers, the obtained nanoemulsion system is uniform and stable, and has good biocompatibility and slow-release performance. The emulsification and active component loading process are integrated in one step, the process flow is simplified, the loss of active components in multi-step operation is effectively avoided, the preparation efficiency and practicability are significantly improved, and a new way is provided for efficient and safe delivery of natural functional components.
Owner:GUILIN UNIVERSITY OF TECHNOLOGY