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74 results about "Biocomposite" patented technology
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A biocomposite is a composite material formed by a matrix (resin) and a reinforcement of natural fibers. These kind of materials often mimic the structure of the living materials involved in the process keeping the strengthening properties of the matrix that was used, but always providing biocompatibility. The matrix phase is formed by polymers derived from renewable and nonrenewable resources. The matrix is important to protect the fibers from environmental degradation and mechanical damage, to hold the fibers together and to transfer the loads on it. In addition, biofibers are the principal components of biocomposites, which are derived from biological origins, for example fibers from crops (cotton, flax or hemp), recycled wood, waste paper, crop processing byproducts or regenerated cellulose fiber (viscose/rayon). The interest in biocomposites is rapidly growing in terms of industrial applications (automobiles, railway coach, aerospace, military applications, construction, and packaging) and fundamental research, due to its great benefits (renewable, cheap, recyclable, and biodegradable). Biocomposites can be used alone, or as a complement to standard materials, such as carbon fiber. Advocates of biocomposites state that use of these materials improve health and safety in their production, are lighter in weight, have a visual appeal similar to that of wood, and are environmentally superior.
Multi-functional engineered bio-composites using lignocellulosic elements with smooth surface finish and reinforced mechanical properties and Anti-settling fibers
A multi-layer engineered-wood composite panel or board with a core strand layer, with one or both top and bottom surface layers formed with “fluffy” fiber layers. The fibers may be synthetic or natural. The fibers have anti-settling characteristics. The fibers may be micro-fibrillated cellulose and subsequent cellulose elemental fibrils processed to reduce lignocellulosic recalcitrance and allow the structural integrity of cell walls to be loosened and fibers to be unfolded and exposed. The processed fibers when used as a surface layer provide a denser, smoother and more uniform surface than that obtained with particle-based products.
Owner:LOUISIANA PACIFIC CORP
Mycelium composite production method
The present invention relates to the production of biocomposite materials through the co-cultivation of mycelium and algae. This innovative method integrates sustainable practices and utilizes waste materials to create carbon-negative, durable, and biodegradable composites suitable for various applications, including interior design, construction, automotive and packaging.
Owner:ISIK GÖKÇE AYDAN
Biocomposite
A composite comprising a particulate and cellulose binders, in particular a primary binder (e.g. potato starch) and a secondary binder (e.g. a first and a second cellulose material). This may be a hy
Owner:CELLMENT LTD
Double wool biocomposite air filter material and production method thereof
PCT designated stageWO2025146671A9
The goal of the present invention is to provide a double-wool biocomposite air filter material and production method thereof, which is fully biodegradable and can be processed and enriched from animal wool. The double wool biocomposite air filter material is composed of (a) a Micro-cotton blend layer of PPK microfibers produced by processing biocomposite pellets from washed and combed coarse wool, a diameter of up to 22±10 micrometers and spunbonded with washed and combed wool, and (b) a layer of PPK nanofibers with a diameter of 0.2-1 micrometers, produced by processing biocomposite pellets from washed and combed coarse wool.
Owner:STARTUP AIREE FELT LLC
Mycelium-based biocomposites
A mycelium-based biocomposite comprising mycelium and a substrate including one or more textiles wherein the mycelium is integrated into the substrate and a method for making a mycelium using one or more textiles as a substrate. Growth of mycelial cells into networks throughout the substrate provide the biocomposite with improved morphological and structural properties.
Owner:KHALIFA UNIV OF SCI & TECH
A single magnetic piezoelectric acupuncture thread and its preparation method
This invention discloses a single magnetic piezoelectric acupuncture thread and its preparation method, relating to the field of biocomposite materials technology. The single magnetic piezoelectric acupuncture thread is a thread obtained by sequentially polarizing a dispersion of piezoelectric and magnetic materials under a high-voltage electric field, immersing it in a liquid, drawing it into threads, and drying it. The liquid used for immersion is water or a hydrogel material. This invention, by immersing the precursor solution in a specific liquid after high-voltage electric field polarization, can extract thread materials that meet the requirements of acupuncture thread embedding, achieving the goal of preparing a single acupuncture thread with both magnetic and piezoelectric properties. The prepared acupuncture thread has excellent potential for both electrical and magnetic stimulation, providing an application basis for improving the efficacy of acupuncture point therapy.
Owner:SOUTHWEST JIAOTONG UNIV
Methods for producing a biodegradable binding agent and an article made from a bio-composite material using thereof
A novel binding agent may be produced using a powder made by grinding a substance known as a spent mushroom substrate. Such a substance is a waste product of agricultural processes, and yet it contains a high quantity of mycelium, which in turn includes chitin, a natural polymer, that may be used as a key ingredient of the binding agent. Ganoderma lucidum fungi may be a preferred SMS because of its rich chitin content. The novel article, such as a mixed-density particle board, made from bio-composite materials, may be produced by a hot-pressing process using a mixture of the binding agent and a plurality of particles of at least a first natural substance, such as Coco coir to form the article.
Owner:SZE KA SHUEN +1
Plant fiber biocomposites
This document provides hemp fiber biocomposites and methods and materials for making and using hemp fiber biocomposites. For example, hemp fiber biocomposites that can be used as a hydroponic growth medium are provided. Methods for making hemp fiber biocomposites also are provided.
Owner:NUTECH VENTURES LTD
Method of manufacturing biomass-enhanced polymeric composite with prosopis cineraria
The present disclosure in general relates to the field of biocomposite materials for construction and structural applications (e.g. biomass-enhanced polymeric composites for sustainable construction and thermal insulation applications). The present disclosure is further directed towards a biocomposite material comprising a polymer matrix. The polymer matrix comprises polylactic acid and a plurality of reinforcement particles comprising Prosopis cineraria. The plurality of reinforcement particles are dispersed within the polymer matrix. The present disclosure also relates to a method of manufacturing a biocomposite material comprising a polymer matrix. The method comprises the steps of: obtaining polylactic acid; obtaining a plurality of reinforcement particles comprising Prosopis cineraria; mixing polylactic acid and a plurality of reinforcement particles comprising Prosopis cineraria to form a polymer matrix, wherein the plurality of reinforcement particles are dispersed within the polymer matrix; and molding the polymer matrix to form the biocomposite material.
Owner:UNITED ARAB EMIRATES UNIVERSITY
Biochemical composite soil heavy metal pollution fixing and repairing material and preparation method thereof
PendingCN122012111AContaminated soil reclamationOrganic fertilisersDipotassium hydrogen phosphateIron salts
The invention provides a biochemical composite soil heavy metal pollution fixing and repairing material and a preparation method thereof.The preparation method comprises the steps that biochar is subjected to acid treatment, and activated biochar is obtained; uniformly mixing calcium salt, ferric salt, aluminum salt and deionized water to obtain a mixed salt solution, adding urea to obtain a precursor solution, dipping the activated charcoal in the precursor solution, and then performing hydrothermal reaction to obtain loaded charcoal; mixing and grinding the oyster shell powder and dipotassium phosphate, and calcining at high temperature to obtain activated oyster shell powder; mixing the bacillus subtilis liquid, the activated oyster shell powder and trehalose, oscillating, centrifugally separating, and freeze-drying to obtain the biological composite material. Uniformly mixing the loaded biochar, the biological composite material and a carboxymethyl cellulose solution, granulating, and drying wet granules to obtain the biochemical compound type soil heavy metal pollution fixing and repairing material. According to the prepared fixing and repairing material, the fixing efficiency and adaptability to various heavy metals in soil are improved.
Owner:SINO-SINGAPORE RUIMEI (TIANJIN) ENVIRONMENTAL PROTECTION TECH CO LTD +1
Phytic iron cooperates with straw cellulose-based polyurethane flame-retardant biological composite material, and preparation method and application thereof
The application provides a phytic acid iron synergistic straw cellulose-based polyurethane flame-retardant biological composite material and a preparation method and application thereof. The preparation method comprises the following steps: S1, delignification treatment is performed on original straw by mixing the original straw with an alkali solution, to obtain delignified straw; S2, an aqueous PA solution is sprayed to the surface of the delignified straw, and after sufficient absorption, a polyester polyol solution containing Fe2O3 is added, and the mixture is stirred and mixed to obtain a mixture; S3, the mixture is subjected to pressure molding, and after demolding, the phytic acid iron synergistic straw cellulose-based polyurethane flame-retardant biological composite material is obtained by air drying. In the application, phytic acid is used as a biological flame retardant, Fe2O3 is used as a synergistic functional additive, straw cellulose-polyurethane composite material is modified, the inherent cellulose structure of straw is used to promote carbonization and enhance thermal stability, the limit oxygen index of the composite material reaches 27.9%, and the total delayed release amount within 240s is reduced to 48.89m 2 / m 2 .
Owner:ZHEJIANG SCI-TECH UNIV
Tubular fiber-reinforced biological composite artificial blood vessel stent with degradable metamaterial structure
The invention discloses a tubular fiber-reinforced biological composite artificial blood vessel stent with a degradable metamaterial structure. A reinforcing phase of the biological composite material artificial blood vessel stent is a tubular fiber network stent, and a matrix phase is hydrogel; the tube wall of the tubular fiber network stent is of a negative Poisson's ratio structure, and the negative Poisson's ratio structure is constructed by a fiber network formed by mutually crossing fibers; the mechanical property of the biological composite material is changed by regulating and controlling the structural parameters of the tubular fiber network stent, so that the strength of the natural blood vessel is matched with the compliance mechanical property. The problems that in the prior art, the mechanical property of a small-caliber artificial blood vessel is not matched with that of a natural artery, the compliance is insufficient, and precise regulation and control of the mechanical property are difficult to achieve are solved.
Owner:GUIZHOU UNIV
Biocomposite material for regulating magnesium ion release through surface pores and preparation thereof
The application discloses a kind of biological composite material for regulating magnesium ion release by surface layer channel and preparation thereof, belong to the technical field of biomedical materials.The surface layer of the composite material is porous zinc alloy, and the core is medical magnesium alloy.The preparation method includes first using atmosphere smelting combined with nested extrusion process to obtain zinc-magnesium composite bar, then preparing porous zinc alloy surface layer on the surface of the composite bar by laser drilling.The application realizes the controllable degradation of the overall material and the controllable release of magnesium ions.The surface layer zinc alloy slows down the degradation rate of the core magnesium alloy, and the surface layer regulates the magnesium ion release dose through channel size and distribution, i.e., it achieves the use of magnesium ions to promote the bone effect and promote the initial osteogenesis of the composite implant material, and through the volume ratio design of the surface layer zinc alloy and the core magnesium alloy, the degradation rate is regulated to match the bone tissue healing process.The material has moderate mechanical properties, and the elastic modulus is similar to that of human bone.The preparation process is simple, precise, and suitable for mass production.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
Microbial composite material and preparation method and application thereof
The present application relates to a kind of microbial composite material and its preparation method and application, belong to composite material technical field.The microbial composite material provided by the present application includes the following preparation raw materials: microorganism and carrier material;The microorganism is the microorganism of degradable pollutant;The specific surface area of the carrier material is 2~200m 2 / g;The porosity of the carrier material is 30~95%.The microbial composite material of the present application mainly utilizes the metabolic capacity of microorganism to degrade pollutants, and the carrier material used has a certain specific surface area and porosity, which can provide a suitable growth environment and medium for microorganisms, while expanding the contact area of pollutant-containing gas and microorganisms, adsorbing and concentrating pollutant-containing gas to supply microorganisms for degradation, achieving the effect of air purification, forming a composite material with good mechanical properties, not easy to collapse and good purification effect.
Owner:GD MIDEA AIR CONDITIONING EQUIP CO LTD
Vegetal Concrete Masonry Unit and Method and System for Manufacture Thereof
A vegetal concrete masonry unit and method and system for manufacturing thereof are disclosed. The masonry unit comprises treated crop residues (e.g., paddy straw, wheat straw, bagasse), a binder of hydrated lime, ground granulated blast furnace slag (GGBFS), and low-content alkali activator (2.5-20% by mass), and aggregates in a mass ratio of 1:0.1:1.5 to 1:5:5, achieving compressive strengths of 2-20 MPa and densities of 950-1900 kg / m3. The method involves alkali-treating residues at 0.1-10M NaOH for 15-1500 minutes, passing through a screw press, mixing with binder and aggregates to form C-A-S-H and N-A-S-H gels, and high-pressure molding (2-10 MPa). The system includes silos, a retention tank / screw press, pan mixer, and hydraulic press. This sustainable bio-composite utilizes agricultural / industrial wastes, reduces emissions by 80%, is energy efficient, enhances compatibility and mechanical performance, and provides thermal insulation for eco-friendly building blocks and panels.
Owner:GREENJAMS BUILDTECH PTE LTD
Organic dental gum and method of fabricating the dental gum
An organic dental gum pad formed from a moldable composition includes a nano starch-based biomaterial, including a nanocomponent, a starch biocomposite, and an organic composition. The nanocomponent includes fish bone powder, oyster shell powder, coconut shell powder, graphene, and sheep bone powder. The starch biocomposite includes date seed nano-starch, black palm seed-based nanocellulose, corn starch, and olive seed-based nano-starch, and the organic composition includes at least one of Lannea sp. glue, waste jackfruit latex, Acacia nilotica glue, a sheep gut oil-based glycerin, beetroot peel dye, dragon fruit peel dye, mangosteen dye, pomegranate peel, and aroid peel gel. The organic dental gum pad further includes at least one polymer component, and a cyanoacrylate. The moldable composition includes particles having an average particle size of less than 30 nm, and a molded structure has a thickness of 0.5 to 4 mm.
Owner:IMAM MOHAMMAD IBN SAUD ISLAMIC UNIV
Artificial fascia and its construction method and application
The application discloses an artificial fascia which is a composite material with a five-layer structure and is composed of fat stem cell-loaded amniotic membrane, PRP gel and polyurethane film; the five-layer structure material is in sequence of fat stem cell-loaded amniotic membrane, PRP gel, polyurethane film, PRP gel and fat stem cell-loaded amniotic membrane; the fat stem cell-loaded amniotic membrane is acellular amniotic membrane paved with fat stem cells and is prepared by the following method: inoculating fat stem cells on the acellular amniotic membrane and growing for 7-14 days to obtain the fat stem cell-loaded amniotic membrane. The application further discloses a preparation method of the artificial fascia and application of the artificial fascia in preparation of a biological patch for treating hernia or in preparation of a mesh for treating pelvic organ prolapse. The artificial fascia has high tensile strength, good tissue compatibility, good immune function and degradability, is a biological composite material with excellent performance, can be used for treating hernia and pelvic organ prolapse and has great application potential.
Owner:SHENYANG CELL THERAPY ENG TECH R & D CENT CO LTD +1
Leather-like bio-composite material, method for its preparation and use thereof
A method for preparing a leather-like biological composite material, comprising culturing a culture mixture comprising a fungal species and a nutrient substrate in a culture device; pressing a flat plate against an upper surface of mycelium in a direction, continuing the culturing; removing the flat plate, and tightly attaching a mesh-like membrane to the upper surface of the mycelium, continuing the culturing; pressing the flat plate against the upper surface of the mycelium in a direction, continuing the culturing until a mycelium-membrane composite is formed in which the mycelium completely covers the mesh-like membrane; repeating the foregoing steps at least once; and separating the composite from the nutrient substrate, and post-processing the composite. A leather-like biological composite material prepared by the method, and use thereof in preparing light textile products.
Owner:SHENZHEN INST OF ADVANCED TECH
Biomass-enhanced polymeric composite with prosopis cineraria for sustainable construction and thermal insulation applications
The present disclosure in general relates to the field of biocomposite materials for construction and structural applications (e.g. biomass-enhanced polymeric composites for sustainable construction and thermal insulation applications). The present disclosure is further directed towards a biocomposite material comprising a polymer matrix. The polymer matrix comprises polylactic acid and a plurality of reinforcement particles comprising Prosopis cineraria. The plurality of reinforcement particles are dispersed within the polymer matrix. The present disclosure also relates to a method of manufacturing a biocomposite material comprising a polymer matrix. The method comprises the steps of: obtaining polylactic acid; obtaining a plurality of reinforcement particles comprising Prosopis cineraria; mixing polylactic acid and a plurality of reinforcement particles comprising Prosopis cineraria to form a polymer matrix, wherein the plurality of reinforcement particles are dispersed within the polymer matrix; and molding the polymer matrix to form the biocomposite material.
Owner:UNITED ARAB EMIRATES UNIVERSITY
A nano-enzyme-supported biomimetic hydrogel, its preparation method and application
ActiveCN119214995BHeavy metal active ingredientsMetabolism disorderCatalytic functionBiocompatibility
This invention discloses a nanozyme-loaded biomimetic hydrogel, its preparation method, and its applications, belonging to the field of biocomposite materials technology. The preparation method includes the following steps: preparing Mn@Co@MOF powder, Mn@Co3O4 powder, and Pt nanoparticles; preparing Mn@Co3O4@Pt nanozymes; preparing a Mn@Co3O4@Pt nanozyme-PVA mixed solution; preparing an Alg-PBA hydrogel precursor; and obtaining the nanozyme-loaded biomimetic hydrogel. The nanozyme-loaded biomimetic hydrogel disclosed in this invention effectively regulates the bone inflammation microenvironment caused by diabetes, significantly reducing inflammatory responses and promoting bone tissue repair and regeneration. The nanozymes loaded in the hydrogel possess highly efficient catalytic performance, mimicking the catalytic function of enzymes and improving treatment efficiency. Simultaneously, the good biocompatibility of the nanozymes ensures the safety and effectiveness of the hydrogel in biomedical applications.
Owner:SICHUAN UNIV
Process for producing fiber-reinforced bio-composites incorporating agricultural waste fibers, bio-based binders, and carbon nanomaterials
ActiveUS12546062B1Synthetic cellulose/non-cellulose material pulp/paperPulping with inorganic basesEnvironmental engineeringCarbon nanomaterials
The present disclosure pertains to fiber-reinforced bio-composites incorporating agricultural waste fibers, bio-based binders, and carbon nanomaterials, and a process for their preparation. The bio-composites of the present disclosure offer superior mechanical and thermal properties while being environmentally sustainable.
Owner:UNITED ARAB EMIRATES UNIVERSITY
Biodegradable composite material and preparation and application methods thereof
The invention belongs to the technical field of preparation of medical degradable metal-based composite materials, and relates to a biodegradable composite material and a preparation and application method thereof. The preparation method comprises the following steps: 1, taking graphene oxide, silver nitrate and ferric nitrate as raw materials, and enabling Ag and Fe2O3 nanoparticles to grow on the surface of the graphene oxide together in situ through a hydrothermal method, so as to form (Ag + Fe2O3) coated GO; 2, (Ag + Fe2O3) coated GO is uniformly dispersed in Zn powder through wet ball milling, and (Ag + Fe2O3) coated GO / Zn mixed powder is obtained; and 3, the mixed powder is subjected to sintering and plastic processing, and the ZnO-coated GO / Zn-Fe-Ag alloy-based composite material is prepared. And reinforcing the zinc matrix by using an in-situ alloying reaction between the Ag nanoparticles and the zinc matrix, and endowing the zinc matrix with an antibacterial characteristic, so as to finally obtain the biodegradable ZnO (at) GO / Zn-Fe-Ag biological composite material with good comprehensive performance.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
A method for preparing a dual-dynamic network crosslinked bio-based composite
The application relates to the technical field of biological composite materials, and particularly relates to a preparation method of a double-dynamic-network-crosslinked biological-based composite material, which comprises the following steps: S1, stirring an ENR emulsion, and simultaneously adding 3 phr of tartaric acid and 6 phr of 3-amino phenylboronic acid in rubber dry weight, and stirring until no obvious solid particles are observed in the emulsion to obtain an E-TA / APBA composite emulsion; S2, adding curdlan into deionized water to prepare a water dispersion; S3, adding the water dispersion into the E-TA / APBA composite emulsion to obtain an E-T3A6Ca mixed solution, wherein a represents the component of curdlan in the rubber dry weight, and a is one of 3, 6, 9 or 12; and S4, pouring the E-T3A6Ca mixed solution into a mold, water-bath heating and curing, and air-drying until the weight is constant to obtain the biological-based composite material. The application can realize network rearrangement at a relatively low temperature, and the composite material has the properties of recycling, self-repairing and shape memory. The introduction of functional fillers such as carbon nanotubes and ammonium polyphosphate endows the biological-based composite material with the properties of electromagnetic shielding, flame retardation and photo-thermal conversion.
Owner:QILU UNIVERSITY OF TECHNOLOGY (SHANDONG ACADEMY OF SCIENCES)
High-purity magnesium-zinc-magnesium alloy layered biological composite material and preparation method thereof
The invention discloses a high-purity magnesium-zinc-magnesium alloy layered composite material and a preparation method thereof, and belongs to the technical field of biomedical materials. The preparation method comprises the steps that high-purity magnesium and magnesium alloy are smelted to obtain cast ingots, then the shell high-purity magnesium cast ingot is machined into an open cup-shaped hollow structure, the inner core magnesium alloy cast ingot is machined into a cylinder matched with an inner hole of the magnesium alloy shell cast ingot, and then the inner core magnesium alloy is wrapped with a layer of zinc foil to be assembled with the magnesium alloy shell. Interface bonding between high-purity magnesium and magnesium alloy is promoted by means of zinc foil, and the layered composite material is prepared by adopting a co-extrusion method. The prepared high-purity magnesium-zinc-magnesium alloy layered composite material shows good interface bonding strength, the comprehensive mechanical property of the composite material can be improved while the corrosion degradation rate is regulated and controlled, and the high-purity magnesium-zinc-magnesium alloy layered composite material has good biocompatibility and degradability. The preparation method is simple in process, high in safety and good in interface bonding.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
Metal organic carbon skeleton derivative composite material, preparation method and application
PendingCN121394909AMagnetic/electric field screeningCarbon preparation/purificationDielectricRare-earth element
The invention relates to a metal organic carbon skeleton derivative composite material as well as a preparation method and application thereof. The metal organic carbon skeleton derivative composite material comprises a metal organic carbon skeleton and metal particles loaded on the surface of the metal organic carbon skeleton, the metal organic carbon skeleton comprises rare earth elements and an organic ligand; the metal organic carbon skeleton has a rod-like structure. A metal organic carbon skeleton provided by the invention comprises rare earth elements and can provide good wave-absorbing performance, a continuous three-dimensional conductive carbon network formed by mutual connection of rod-shaped structures can provide effective dielectric, and gaps, interfaces and holes formed among the rod-shaped structures can also significantly increase multiple reflection and scattering of electromagnetic waves, so that the wave-absorbing performance is improved. The dielectric size, the polarization mode and the loss mechanism of the material are synergistically promoted, and impedance matching is optimized, so that the wave-absorbing performance of the material is further improved.
Owner:GANJIANG INNOVATION ACAD CHINESE ACAD OF SCI
LDH nano composite material loaded with CD105 nano antibody as well as preparation method and application of LDH nano composite material
The invention belongs to the field of biological composite materials, and particularly discloses an LDH nano composite material loaded with a CD105 nano antibody and a preparation method and application thereof.The nano composite material is prepared by loading the CD105 nano antibody on the surface of LDH containing ICG, and the preparation method comprises the steps that ICG-LDH is prepared through a coprecipitation method; according to the preparation method, ICG-LDH is subjected to surface CD105Nb functionalization in an electrostatic adsorption manner, so that the CD105Nb-ICG-LDH nano composite material is constructed, the prepared CD105Nb-ICG-LDH nano composite biological material has a good photothermal effect and a photodynamic effect, an active targeting effect can be realized by virtue of the surface CD105Nb, and the preparation method is simple and convenient. Tumor cell apoptosis is induced in vitro by virtue of a photothermal effect and a photodynamic effect generated under ICG illumination, and meanwhile, tumor growth is inhibited in vivo, so that an experimental basis and theoretical guidance are further provided for subsequent tumor treatment clinical experiments.
Owner:DENTAL HOSPITAL AFFILIATED TO GUANGXI MEDICAL UNIV (DENTAL HOSPITAL OF GUANGXI ZHUANG AUTONOMOUS REGION)
FIBER BUNDLE REINFORCED MEDICAL BIOCOMPOSIT IMPLANTS
Owner:OSSIO LTD
Hydroxyapatite carbon fiber material and bone repair biological composite material and preparation method and application
The present application belongs to the technical field of carbon fiber composite materials, and provides a hydroxyapatite carbon fiber material and a preparation method thereof. The carbon fiber cloth is reacted with an organic template to obtain a carbon fiber cloth with an organic phase, and then the carbon fiber cloth is sequentially immersed in a soluble phosphate solution, a calcium-containing compound solution and a surfactant-containing simulated body fluid to obtain the hydroxyapatite carbon fiber material. The present application also provides a hydroxyapatite bone repair biological composite material and a preparation method thereof. It is found for the first time that cationic, nonionic and zwitterionic surfactants can accelerate the mineralization rate of hydroxyapatite, hydrogen bonds are generated between the hydroxyapatite and a polyaryletherketone resin matrix, the binding force between the hydroxyapatite and the polyaryletherketone matrix is stronger, the hydroxyapatite is not easy to fall off, a uniform and ordered hydroxyapatite bone repair biological composite material with excellent mechanical properties, high biological activity and biocompatibility is obtained, the mechanical strength and biological environment required for the hydroxyapatite to fully match and be implanted into the human body are met, and the application range of the hydroxyapatite is expanded.
Owner:DONGHUA UNIV
An amniotic membrane biological composite material and a preparation method and application thereof
The application provides an amniotic membrane biological composite material and a preparation method and application thereof, and the composite material comprises amniotic membrane microcarriers, mesenchymal stem cells and a polypeptide hydrogel, wherein the amniotic membrane microcarriers are 3D load type three-dimensional structures, the amniotic membrane microcarriers are loaded with the mesenchymal stem cells, and the mesenchymal stem cells are mixed and cultured with a polypeptide solution at a ratio of 1:2-1:4 to obtain a mesenchymal stem cell-amniotic membrane microcarrier-polypeptide hydrogel biological composite material. The combination of the amniotic membrane microcarriers and the hydrogel provides three-dimensional support for stem cells, perfusion into the uterine cavity can make the cells survive for a long time, meanwhile, the microcarriers and the hydrogel have a slow-release effect on the excretion of the stem cells, and are more conducive to promoting the repair effect of the mesenchymal stem cells, and can be used for endometrial repair.
Owner:REIN CELL ENG TECH (GUANGZHOU) CO LTD
Micronized bleached eucalyptus kraft pulp fibre biocomposite
ActiveEP4293158B1Synthetic cellulose/non-cellulose material pulp/paperChemical/chemomechanical pulpPulp and paper industryPulp fibre
The invention relates to a biocomposite comprising a bioplastic and micronized fibers of bleached eucalyptus Kraft pulp, as a simple and sustainable alternative to composites with petrochemical-based components for application in the industries of automotive, furniture, aerospace, construction, musical instruments, home appliances and electronic components, packaging, among others. The biocomposite includes micronized fibers of bleached eucalyptus Kraft pulp in a percentage by weight of 5% to 60%. The fibers have an aspect ratio of 11.0 to 30.0. The biocomposite is entirely biologically based and presents dispersion, homogeneity, tensile strengths, and increased tensile and flexural modulus compared to biocomposites with non-micronized fibers.
Owner:RAIZ INST DE INVESTIGACAO DA FLORESTA E DO PAPEL +1