Composite Shell Particle Biomineralization for Artificial Bone
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Solution Overview
Problem
Current research on biomineralization and novel materials development lacks effective methods for creating composite shell particles with enhanced mechanical properties and structural strength using biological and metallic layers, particularly for applications like artificial bone materials.
Innovation Solution
A composite shell particle is manufactured by co-culturing bacteria or algae with a metal raw material in a culture medium, inducing a redox reaction to produce a wet powder, which is then dried and treated to enhance compressive strength through crosslinking, using a porous biological layer and a metallic layer composed of metals like iron, molybdenum, or calcium, forming a hollow shell with excellent mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a composite shell particle with both biological and metallic layers is constructed, then the compressive strength and mechanical properties are enhanced, but the manufacturing complexity increases
Solution Approach 1:
The bacteria or algae cells automatically perform the mineralization process by inducing redox reactions with metal raw materials in the culture medium, eliminating the need for external equipment or complex manufacturing processes. The biological cells serve as both the structural framework and the manufacturing agent, creating the metallic layer through their metabolic activities.
Solution Approach 2:
The invention creates a composite shell structure with a biological layer (cell wall or membrane) and a metallic layer (mineralized from metal raw materials), combining the advantages of both materials to achieve enhanced compressive strength and mechanical properties suitable for artificial bone applications.
2Adaptability or versatility
If biomineralization research is applied to create novel materials, then new material properties are achieved, but the manufacturing process becomes complex and costly
Solution Approach 1:
The biological cells autonomously control the mineralization process through their natural metabolic functions, selecting and precipitating inorganic elements from the environment onto specific organic substrates. This self-organizing capability eliminates the need for complex external control systems or expensive specialized equipment.
Solution Approach 2:
The same biological cells can be used to create different metallic layers by simply changing the metal raw materials in the culture medium, allowing one system to produce multiple material types (iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, calcium) without requiring different manufacturing equipment or processes.
3Strength
If metal raw materials are used in biomineralization, then composite shell particles with excellent mechanical properties are produced, but the production cost increases
Solution Approach 1:
The biological cells naturally accumulate and concentrate metal ions from the culture medium through their metabolic processes, eliminating the need for expensive external mineralization equipment or complex deposition processes. The cells act as natural reactors that automatically transform dissolved metal raw materials into solid mineral structures.
Solution Approach 2:
The invention changes the state of metal raw materials from dissolved ions in culture medium to solid mineral precipitates through biological redox reactions, transforming the physical and chemical parameters of the metal to achieve the desired mechanical properties in the final composite structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The resulting composite shell particles exhibit enhanced compressive strength, making them suitable for industrial production and applications such as artificial bone materials, with mechanical properties comparable to or exceeding those of trabecular bone, while being simple and cost-effective to produce.
Implementation Method 1
the bacteria or algae cells induces the metal raw material in the culture medium to undergo a redox reaction to produce a wet powder material including a composite shell particle
Implementation Method 2
The metallic layer is crosslinked with the porous biological layer to form the composite shell layer
Implementation Method 3
The powder material including the composite shell particle is placed in a solution or under vacuum and reacted at 0° C. to 250° C. to enhance the compressive strength of the composite shell particle
Data Source
AI summary
A composite shell particle including a composite shell layer is provided. The composite shell layer is a hollow shell, wherein the composite shell layer includes a porous biological layer and a metallic layer. The porous biological layer is composed of an organic substance including a cell wall or a cell membrane of a bacteria or algae. The metallic layer is crosslinked with the porous biological layer to form the composite shell layer. The metallic layer includes at least one metal selected from the group consisting of iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, and calcium, and/or includes at least one selected form the group consisting of metal chelates, metal oxides, metal sulfides, metal chlorides, metal selenides, metal acid salt compounds, and metal carbonate compounds. A method of manufacturing the composite shell particle, and a biological material including the composite shell particle and the applications thereof are also provided.