16 results about "Biomimetic design" patented technology

This invention provides a genetically engineered biomimetic microsphere for hydration remodeling, its preparation method, and its application, belonging to the field of biomedical technology. This invention develops an injectable composite system, GBA / SRGN@HADA@GelMA, which possesses the ability to regulate hydration and intervene in genes through interface biomimetic design and multi-level functional integration. It uses HADA as a moisturizing outer layer, provides mechanical support through GelMA microspheres, and achieves targeted delivery of SRGN siRNA through G5-GBA loading, thereby achieving synergistic regulation of the degenerative nucleus pulposus microenvironment. GBA / SRGN@HADA@GelMA reduces the expression of inflammatory factors and matrix degradation genes, and significantly promotes the accumulation of HA and lubricating proteins. This enhances the water retention capacity and interfacial lubrication of the nucleus pulposus, thereby improving compressive elasticity and energy absorption capacity. This invention is the first to combine continuous water regulation, lubrication, mechanical buffering, and extracellular matrix homeostasis regulation to synergistically delay intervertebral disc degeneration, providing an excellent treatment strategy for degenerative intervertebral disc diseases.

This utility model discloses a wind-driven surface vehicle based on a jellyfish-inspired biomimetic design, comprising a float, a sail, an elastic diaphragm, stabilizing blades, an inflatable assembly, solar photovoltaic panels, and a controller. The float is an elliptical plate with an internal cavity. Multiple stabilizing blades are regularly arranged around the float. The surface of the sail is arranged at a relative angle to the long axis of the float. There are two sets of solar photovoltaic panels, arranged on both sides of the sail and electrically connected to the battery module inside the float. The elastic diaphragm covers the bottom of the float, forming an inflatable air chamber between the diaphragm and the bottom surface of the float. This surface vehicle can navigate in natural wind conditions without external power input, exhibiting good navigation stability and long endurance. It is particularly suitable for long-term drift monitoring of the ocean surface, support for distributed sensor network nodes, and surface micro-energy harvesting platforms.

This invention belongs to the field of biomaterials and tissue engineering technology. It relates to a PRP-loaded dopamine-modified 3D nanofiber sponge and its preparation method. The PRP-loaded dopamine-modified 3D nanofiber sponge prepared by this invention utilizes a biomimetic design strategy, inspired by the adhesion mechanism of marine mussels, and employs PDA (polydopamine) surface modification technology to form a bioactive interface layer on the nanofiber surface. The active functional groups on the PDA surface bind with growth factors in PRP, forming a stable PDA-PRP composite functional layer. While maintaining the high porosity and suitable mechanical properties of the 3D nanofiber sponge, the biomimetic modification with polydopamine improves the loading efficiency of PRP and the interfacial bonding strength, thus extending the sustained-release period of growth factors.

The application discloses a kind of biomimetic composite scaffold with periosteum-cortical bone-cancellous bone structure and its preparation method and application.The scaffold is assembled by independent periosteum biomimetic scaffold module and independent bone trunk biomimetic module.The periosteum biomimetic scaffold module is cylindrical tube structure hydrogel, loaded with zinc silicate particles and periosteum related cells, with the biological functions of promoting cartilage differentiation, secreting nerve and vascular factors and synthesizing periosteum matrix proteins.The bone trunk biomimetic scaffold module is cylindrical bioceramic, with multiple vertical pipes embedded in the dense layer of outer wall to simulate cortical bone, and with staggered structure inside to simulate cancellous bone.Animal experiments show that the biomimetic composite scaffold can effectively promote the integrated regeneration of bone trunk and periosteum in rabbit radial critical size defect model.Therefore, the application provides a new solution for the biomimetic design and regeneration repair of bone tissue engineering.

This invention discloses a biomimetic blade, impeller, and fan with a wave-like surface structure. The blade features a continuous wave structure along its chord length. The wave structure includes a first wave structure, a gentler wave structure, and a second wave structure arranged sequentially along the chord length. This invention targets a closed axial flow impeller, employing a wave-like biomimetic design on the blade surface. The wave pattern is primarily concentrated from 50% of the blade height to the blade tip, aiming to reduce noise from the blade tip to 50% of the blade height. During operation, the area with the highest sound pressure level is concentrated above 50% of the blade height to the blade tip, with the highest sound pressure level near the blade tip. The wave-like design at this location effectively improves the area of ​​airflow energy dissipation and accumulation, thereby reducing noise.

This invention relates to the field of environmental microbiology, specifically disclosing an autotrophic denitrifying bacterial agent and its preparation method. This autotrophic denitrifying bacterial agent employs a three-layer biomimetic design: a sulfur-calcium composite core, an inner shell gel layer, and an outer functional layer. Denitrifying Thiobacillus is loaded into the core, and Pseudomonas schlegelii is fixed in the outer layer, with a sodium alginate-xanthan gum gel layer providing physical isolation, achieving spatial partitioning and symbiosis of autotrophic and heterotrophic denitrifying bacterial communities. The sulfur-calcium composite core uses sulfur powder as an electron donor, and hydrophobically modified eggshell powder supplements alkalinity in situ. The inner shell layer incorporates ultrafine calcium carbonate, providing both mechanical reinforcement and pH buffering functions. The outer layer encapsulates sodium acetate-stearate microspheres for slow carbon source release. This autotrophic denitrifying bacterial agent exhibits high denitrification efficiency, pH stability, and strong resistance to hydraulic shearing under low carbon-to-nitrogen ratio conditions. The preparation process is mild, and the raw materials are inexpensive and readily available, making it suitable for deep denitrification in wastewater treatment and other scenarios.

The application relates to an interlocking friction energy consumption anti-impact structure based on a bionic hexagon structure and belongs to the field of anti-impact protective equipment. The application mainly comprises a hexagon thin-wall structure and an elliptical interlocking structure. The hexagon thin-wall structure is determined based on bionic design of a beetle ala cross section; the elliptical interlocking structure is a bionic interlocking unit with a convex and a concave elliptical arc matched with each other, is designed based on the elliptical interlocking interface characteristics of a cassida beetle ala, and is tangent at the connecting parts of the convex and the concave; the elliptical interlocking structure is distributed at the point positions of the hexagon thin-wall structure and is determined through strain analysis of the hexagon thin-wall structure. The interlocking interface friction energy consumption mechanism of the beetle ala and the compression resistance characteristics of the hexagon structure are combined, the hexagon thin-wall structure and the elliptical interlocking structure are cooperatively acted, the interlocking interface friction energy consumption, layered sliding and structural deformation are realized when impact is borne, hierarchical energy consumption is realized, and a composite protection system with high anti-impact performance is formed.

This invention discloses a biomimetic nest box for captive red pandas, belonging to the technical field of wildlife captive breeding facilities. The nest box includes a box body, a partition assembly, a keeper operation door assembly, an animal entrance / exit assembly, and a temperature control assembly. The partition assembly divides the inner cavity of the box body into upper and lower independent sections. The sides of the box body have two keeper operation doors with observation windows, and the front has an animal entrance / exit with a circular movable door connected to the box body via a hinge. The interior of the box body contains a thermometer and an ice pack container. This invention simulates the environment of a natural tree hole nest through biomimetic design, utilizes an independent dual-channel design to separate keeper operation from animal entry / exit, and combines passive temperature control to effectively reduce human interference and maintain the temperature inside the nest box within a suitable range. It aims to solve the problems of existing nest boxes being simple in structure, lacking biomimetic design, lacking temperature control methods, and inconvenient to operate, significantly improving the survival rate of captive red panda cubs during the breeding season.

This invention provides a biomimetic design-based two-parameter function-controlled gradient material and its filling structure, comprising variant CFCB lattice unit cells arranged in an array along the X, Y, and Z directions, wherein the amplitude A of the variant CFCB lattice unit cells along the Z direction is... z Controlled by a two-parameter function, and with the variant CFCB lattice unit cell arrangement symmetrical along the midline of the X-Z plane, this invention, based on biomimetic design principles, applies a gradient control strategy to the geometric description and control of complex lattice materials. The resulting gradient lattice material can be used as a filler in thin-walled square tube structures. Experimental results show that the gradient lattice proposed in this invention can effectively improve the filling structure's resistance to lateral bending loads, effectively delay fiber breakage in thin-walled square tubes, and thus significantly improve the structure's bending resistance and energy absorption performance.

The invention relates to the technical field of nanofiltration composite membranes, in particular to a high-flux nanofiltration composite membrane with a bionic middle layer introduced and a preparation method of the high-flux nanofiltration composite membrane. According to the preparation method, a brick-mud structure of a shell pearl layer is utilized, a graphene oxide flexible two-dimensional material is blended, a sodium alginate-polyvinyl alcohol mediated internal and external penetrating modification strategy is adopted, and a middle layer, with mechanical stability, of ultra-thin coordination cross-linked shell-like hydrogel is constructed through bionic design regulation and control; the intermediate layer is intended to regulate diffusion of amine monomers and form and form a nanofiltration composite membrane with high throughput. The nanofiltration composite membrane with the ultra-thin polyamide functional layer structure and the functional middle layer can keep stable water flux and ion interception, and is good in structure.

A bionic bucket body is of a shell-imitated streamline double-layer hollow titanium alloy structure, a three-dimensional driving rod capable of being folded and twisted according to the paper folding principle is carried, the surface of the bionic bucket body is coated with a seawater corrosion resistant coating, and a telescopic water-resisting layer is arranged in the bionic bucket body to achieve sample pressure maintaining; the bionic self-locking ground breaking structure is composed of piranha tooth shape-imitated tungsten cobalt alloy ground breaking teeth, tooth blades are provided with bionic anti-drag lines and can be quickly disassembled and assembled through replaceable clamping grooves, and the integrity of the blade edges is strengthened by the inter-tooth self-locking structure; the mechanical metamaterial sensing system is embedded into a negative Poisson's ratio piezoelectric metamaterial sensor array, so that multi-dimensional mechanical load, static and dynamic pressure and spatial attitude can be monitored in real time, and accurate feedback is provided for excavation adjustment. Bionic design and an intelligent sensing technology are fused, the adaptability, excavation efficiency and sample collection quality of the deep-sea high-pressure strong-corrosion environment are improved, maintenance is convenient, and the problems that traditional equipment is large in cut-in resistance, lack of state sensing, poor in adaptability and the like are solved.

This invention discloses a marine biomimetic reef loaded with an ecological restoration agent and its application. It relates to the field of marine ecological restoration technology. The invention provides a preparation process and application for the marine biomimetic reef. It utilizes rapid branching and long-term seed growth and replacement to make the restoration more durable. It contains plant-derived active ingredients, which improve the microenvironment to a certain extent, reduce disease, and help improve survival rates. The biomimetic design, with surface grooves, simulates natural reefs to a certain extent, facilitating biological attachment; the materials, such as ceramics, hemp rope, biochar, and plant extracts, are biodegradable or harmless. It is accompanied by seed temperature and salinity gradient acclimatization to enhance adaptability to complex marine environments and promote colonization.

This invention discloses a biomimetic structure-based support design method and an accelerator magnet support. The method includes: constructing modal and strength indices based on user requirements; confirming the structural form considering high stiffness characteristics and performing biomimetic design of the support to obtain a support design model; performing modal and strength analyses on the support design model to obtain analysis results; comparing the analysis results with the modal and strength indices, and outputting the support design model based on the comparison results. The accelerator magnet support includes: a honeycomb structure on the top plate; an animal skeleton structure for the side support structure; a layered honeycomb structure for the middle side plate; a diatomaceous earth structure for the bottom crossbeam; a tree branch structure for the cross supports; and a plankton-inspired outer shell. By using this invention, the weight of the support can be reduced while minimizing the impact of ground vibration. This invention can be widely applied in the field of support design.

This invention discloses a flexible finger rehabilitation actuator based on a biomimetic spiral structure, belonging to the fields of rehabilitation medicine and additive manufacturing. It includes components such as a finger joint assembly, a Kevlar traction rope, an electromagnetic clutch, a microcontroller, a human-computer interaction display screen, a tensioning device, and a micro servo motor, all formed through additive manufacturing. The finger joint assembly is based on a logarithmic spiral biomimetic design, featuring a five-segment multi-material composite structure with rigid-flexible partitions adapted to human movement and wear. The transmission system achieves precise power transmission through the traction rope, arc-shaped slide rail, and electromagnetic clutch. The tensioning device features anti-loosening self-locking, and the fixing components are adjustable to fit different patients. The device uses a microcontroller and display screen to set training parameters, monitor in real time, and track data. This invention solves the problems of motion interference, poor adaptability, and unstable drive in existing devices, combining biomimetic adaptability, comfort, and intelligent control capabilities.

This invention discloses a cysteine-modified iron-oxygen coordination polymer (NIC-Cys), its preparation method, and its applications. By biomimetic design of the NIC catalyst and cysteine ​​modification, a catalyst with a wider applicable pH range for electrocatalytic oxygen activation is obtained, showing promising applications in the synthesis of electrode materials and electrocatalytic water treatment. Compared with NIC catalysts, the cysteine-modified NIC catalyst provided in this invention exhibits faster bisphenol A removal kinetics and a higher concentration of hydroxyl radical generation. It maintains a high bisphenol A removal rate within a pH range of 3-8.5, demonstrating good pH adaptability and meeting the needs of practical wastewater treatment.