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109 results about "Biocomposite" patented technology

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.

Biological composite material, preparation method and application

PendingCN120168722AProsthesisPhysiologyFibrosis
The invention discloses a biological composite material as well as a preparation method and application thereof. The biological composite material comprises a decellularized biological amnion, mesenchymal stem cells and polypeptide hydrogel. In the polypeptide hydrogel, the sequence of the polypeptide is IGSRVGDRGDS. The biological composite material can effectively promote cell growth at a thin endometrial injury position, endometrial cell proliferation activity is higher, new vessel production related gene regulation activity is enhanced, fibrosis caused by the endometrial injury is well inhibited, re-adhesion after an intrauterine adhesion separation operation is prevented, and a good application prospect is achieved. The fertility is obviously improved, and the pregnancy rate is increased.
Owner:REIN CELL ENG TECH (GUANGZHOU) CO LTD

CE-SKP / CPH / P2G3 three-layer composite scaffold, preparation method and application

The invention belongs to the technical field of biological composite materials, and particularly relates to a CE-SKP / CPH / P2G3 three-layer composite scaffold, a preparation method and application. The CE-SKP / CPH / P2G3 three-layer composite scaffold is characterized in that CPH hydrogel is placed under a CE-SKP composite scaffold system, a P2G3 nanofiber membrane is placed under the CPH hydrogel, a calcified cartilage layer of a physiological structure is simulated, relative independence of a cartilage repair microenvironment is kept, and mineralization of newborn cartilage cells is induced, so that the calcified cartilage layer of the physiological structure is formed; wherein the CE-SKP composite scaffold system is a seed cell-free composite scaffold system which is constructed by adsorbing self-assembled polypeptide nanofiber hydrogel Ac-(RADA) 4-CONH2 / Ac-(RADA) 4GGSKPPGTSS-CONH2 (RAD / SKP) to a natural cartilage extracellular matrix (ECM), and the composite scaffold system is a seed cell-free composite scaffold system which is constructed by adsorbing the self-assembled polypeptide nanofiber hydrogel Ac-(RADA) 4-CONH2 / Ac-(RADA) 4GGSKPPGTSS-CONH2 (RAD / SKP) to the natural cartilage extracellular matrix (ECM). The CE-SKP / CPH / P2G3 three-layer composite scaffold utilizes the three-layer composite structure to solve the technical problems that in the prior art, a cartilage layer and a calcified cartilage layer in a physiological structure cannot be well simulated, and independence of a repairing microenvironment cannot be kept, joint repairing of the cartilage layer and the calcified cartilage layer is achieved, and a better articular cartilage full-thickness defect repairing effect is achieved.
Owner:TIANJIN HOSPITAL

Biological self-repairing geotechnical cloth suitable for soil slope and construction method

The invention discloses biological self-repairing geotechnical cloth suitable for a soil slope and a construction method.The biological self-repairing geotechnical cloth is fixed to the soil slope surface through anchor rods and comprises two layers of biological composite fiber geotechnical cloth arranged up and down and a layer of polypropylene fiber geotechnical cloth arranged between the two layers of biological composite fiber geotechnical cloth; the biological self-repairing geotextile is formed by connecting biological composite fiber geotextile, polypropylene fiber geotextile and biological composite fiber geotextile from top to bottom in sequence through needling. According to the invention, the biological composite fiber geotextile, the polypropylene fiber geotextile and the biological composite fiber geotextile are connected into the biological self-repairing geotextile by adopting a needling technology; batch production of the biological self-repairing composite geotextile can be realized, the production cost is reduced, and the production efficiency is improved; and the biological self-repairing geotechnical cloth is fixed on the soil slope surface in a step shape, so that the soil slope in the application environment can be prevented from sliding and eroding.
Owner:ZHEJIANG COMM CONSTR GRP CO LTD +3

Preparation method and application of biochar-coated LDH-oyster shell-coated microorganism composite material

The invention discloses a preparation method and application of a biochar-coated LDH-oyster shell-microbe composite material, and belongs to the technical field of soil remediation. The preparation method comprises the following steps: preparing a biochar-CaFe LDH composite material by a hydrothermal coprecipitation method, modifying an oyster shell passivation material, using the modified oyster shell passivation material as a bacillus subtilis immobilization carrier, and preparing the biochar-LDH-oyster shell-microorganism composite material. According to the method, a combined remediation technology is adopted, the excellent characteristics of the biochar are fully utilized, and more point locations are provided for microorganism loading by changing the properties of the oyster shells. The prepared composite material has a good passivation effect on different ion types of heavy metals such as cadmium, lead, arsenic and chromium in soil, the defects of a single remediation method or a remediation material are overcome, multiple heavy metals in the soil are treated at the same time, and the remediation efficiency is improved.
Owner:FUZHOU HIGH-TECH ZONE YEDI ECOLOGICAL ENVIRONMENT TECH CO LTD +2

Leather-like biological composite material, preparation method therefor and use thereof

The present invention provides a method for preparing a leather-like biocomposite comprises: culturing a culture mixture comprising a fungal strain and a nutrient substrate in a culture device; flat pressing a plate against the upper surface of mycelium in one direction and continuing the culture; removing the plate and closely attaching a lattice-like membrane on the upper surface of the mycelium and continuing the culture; flat pressing the plate against the upper surface of mycelium in one direction and continuing the culture until a mycelium-membrane complex is formed where the mycelium completely covers the lattice-like membrane; repeating the foregoing steps at least once; and separating the complex from the nutrient substrate and post-treating the complex. The present invention also provides a leather-like biocomposite prepared by the method of the present invention, and use thereof for preparing a textile product. The method of the present invention is economical and friendly environmental, and the leather-like biocomposite obtained by the method exhibits a uniform texture, a soft and fine handfeel, and high strength mechanical properties.
Owner:SHENZHEN INST OF ADVANCED TECH

Integrated sarcosine detection device as well as preparation method, detection method and application thereof

The invention belongs to the technical field of sarcosine detection, and relates to an integrated sarcosine detection device as well as a preparation method, a detection method and application thereof. The device consists of a sample bottle and a double-layer paper chip, wherein the double-layer paper chip is fixed in a bottle cap of the sample bottle; the double-layer paper chip comprises a target recognition layer and a detection layer, the target recognition layer is Whatman 1 # filter paper loaded with SOx / HRP-coated MAF-7 biological composite materials, the detection layer is Whatman 1 # filter paper loaded with TMB color developing agents, and the layers are bonded through water-soluble double-faced adhesive tapes. After a sample is added into the sample bottle, the bottle is turned over, SOx can recognize and oxidize sarcosine to obtain H2O2, after the double-sided adhesive tape is fully reacted and dissolved, HRP oxidizes a substrate TMB in the presence of H2O2 to generate a bright blue product oxTMB, and RGB signals are recorded through a handheld colorimeter. The detection device can be used for quantitatively detecting the sarcosine content of the prostatic cancer marker.
Owner:DEZHOU UNIV

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

Antimicrobial activity by bee bread and their production method

Disclosed is a biocomposite product with high microbial activity obtained by using bee bread, the method of obtaining this product and using of this biocomposite material for the coating of products like artificial materials, packaging, etc. to be used in areas requiring hygiene or their use as an intermediate raw material.
Owner:BURSA TEKNIK UNIVERSITESI REKTORLUGU

Mycelium composite production method

PCT designated stageWO2025262242A1FungiUnicellular algaeBiotechnologyMycelium
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

PendingGB2701289ACellulosePolymer science
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

PendingUS20250367851A1Wood working apparatusLignocellulosic adhesivesEngineeringMushroom
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

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

PendingCN122146028ACellulosePolyester
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

Hybrid and sustainable bio-composite construction repair material for construction enriched with MWCNT

A bio-composite plastering material and a method of making the same are provided. The bio-composite plastering material includes a mixture of sand-silica, Abelmoschus esculentus powder, and multi-walled carbon nanotubes. The bio-composite plastering material has increased compressive strength depending upon the concentration of Abelmoschus esculentus powder and multi-walled carbon nanotubes used. The method of making the bio-composite plastering material includes sieving the sand-silica to produce sand-silica of a uniform particle size, mixing powdered Abelmoschus esculentus powder with the sand-silica to produce a first mixture, mixing water with the first mixture to produce the bio-composite plastering material, and enhancing the bio-composite material by adding multi-walled carbon nanotubes. The bio-composite plastering material may then be plaster cast, such as by pressing the bio-composite plastering material in a hot press and drying the resulting bio-composite material in an oven.
Owner:UNITED ARAB EMIRATES UNIVERSITY

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

PendingCN122251708ASurgeryHuman bodyMg alloys
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

Biocomposite material and method for forming a biocomposite material

A biocomposite material and methods and systems for forming a biocomposite material are provided. In one example, a biocomposite material includes a biopolymer material and an internal structure imparting zonal properties to the biocomposite material, where the biopolymer material at least partially surrounds and / or extends through the internal structure. The biopolymer material includes mycelium grown from a fungal strain.
Owner:NIKE INC

A polylactic acid bio-composite plastic film and a method for regulating crystallization

The present invention relates to the technical field of green natural materials, and particularly relates to a polylactic acid biocomposite plastic film and a method for regulating its crystallization. The method comprises the following steps: Step 1, by means of melt blending, first preheat an open mill to 170-200 °C, then add polylactic acid to the open mill and fully stir and melt it, and then add cottonseed protein and maleic anhydride to fully mix the materials. The weight ratio of polylactic acid, cottonseed protein and maleic anhydride is 20:0.5-1.2:0.1-0.3 to obtain a mixed material; Step 2, use a flat vulcanizing hot press, preheat it to 170-200 °C, place the mixed material into the template of the flat vulcanizing hot press for molding, and use a cooling device to control the flat vulcanizing hot press to cool the molded mixed material in a segmented cooling manner. The segmented cooling method is as follows: when the temperature drops to 120-130 °C, it is cooled to room temperature at 2 °C-10 °C / 5 min to obtain a polylactic acid biocomposite plastic film. This preparation method uses cottonseed protein as a nucleating agent, enabling polylactic acid to reach the crystallization point at a high temperature, effectively prolonging the crystallization process of polylactic acid, and improving the performance of the polylactic acid biocomposite film.
Owner:GUANGDONG UNIV OF TECH

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

Method for synthesizing double esterified starch and preparing low-vapor-permeability composite membrane

PendingCN120271863ABenzoic acidComposite effect
The invention aims to use acetic anhydride and benzoic anhydride to perform esterification modification on cassava starch to prepare double esterified starch (DES) so as to improve the compatibility of polylactic acid (PLA) and esterified starch. The biodegradable double esterified starch / PLA film is prepared by adopting a solution casting method, and the structure, morphology, air permeability, mechanical properties and biodegradability of the biodegradable double esterified starch / PLA film are researched. Compared with a pure PLA film, the 50 / 50 composite film has the advantages that the water vapor transmission rate is reduced by 50%, the tensile strength is 3.8 MPa, the elongation at break is improved by 74%, and the composite film has a better composite effect, however, when the addition amount of the double esterified starch is 75%, the composite film still has better mechanical properties (the tensile strength is 2.1 MPa, and the elongation at break is 125%). The composite film also has good transparency and degradation performance, and the degradation rate is 28% after the composite film is buried in soil for one week. The research provides an effective method for preparing the starch / polylactic acid composite film, the raw material cost of a single PLA film is reduced, and the starch / polylactic acid composite film is a promising biological composite material.
Owner:GUANGXI UNIV FOR NATITIES

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

A method for preparing a green, formaldehyde-free, high-strength biocomposite material

ActiveCN117325517BLamination ancillary operationsBio-packagingInterfacial delaminationPolymer science
The present invention discloses a method for preparing a green, formaldehyde-free, high-strength biocomposite material, comprising the following steps: applying a layer of inner lining adhesive to the mold surface, then wrapping an inner lining fabric thereon, and performing preliminary drying and curing to obtain an inner lining layer; while preparing the inner lining layer, selecting bamboo strips with a thickness of 1 to 3 mm, applying a layer of adhesive to the surface of the bamboo strips, and then wrapping a bamboo staple fiber bundle around the surface of the bamboo strips to obtain a bamboo winding unit; and using a winding process to wrap the bamboo winding unit covered with a reinforcing layer adhesive around the outer surface of the inner lining layer. The present invention wraps bamboo staple fibers around the surface of the bamboo strips and further wraps them to prepare a reinforcing layer, forming multi-directionally raised fiber segments, thereby increasing the effective contact area between the bamboo strips and the resin matrix and improving the interfacial bonding strength. Compared with the prior art, the present invention significantly avoids problems such as interfacial delamination, bamboo strip slippage, and interlayer delamination of bamboo strips caused by insufficient interfacial bonding strength between the bamboo strips and the resin matrix.
Owner:NANJING FORESTRY UNIV