Biofuel Cells Using Sterilized Soil Matrix Catalysts
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Solution Overview
Problem
Current methods for harnessing biochemical reactions in living cells are limited by the need for genetically modified organisms, and there is a lack of efficient technologies for mediating multistep chemical reactions outside of cellular environments.
Innovation Solution
The development of a biocatalytic complex using sterilized soil matrix, enriched with extracellular catalytic components, which can mediate multistep biochemical reactions, including the production of electricity and organic compounds in biofuel cells, by converting chemical energy from organic compounds into electricity and storing energy electrochemically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If genetically modified organisms are used to mediate biochemical reactions, then the production of electricity and organic compounds can be achieved, but the complexity of the system increases and the stability decreases
Solution Approach 1:
The patent extracts and utilizes extracellular catalytic components (enzymes, metals, minerals) from soil matrix, separating the catalytic function from complete organisms. This extraction approach simplifies the system by using only the necessary catalytic elements rather than entire genetically modified organisms, thereby reducing system complexity while maintaining productivity.
Solution Approach 2:
The soil matrix acts as an intermediary medium that stabilizes extracellular catalytic components. Rather than directly using genetically modified organisms, the patent employs soil matrix as a mediator to support and stabilize the catalytic components, enabling biochemical reactions without the complexity of living organisms.
2Productivity
If living cells are used for biochemical reactions, then metabolic processes can be carried out, but the duration of operation is limited due to cell maintenance requirements
Solution Approach 1:
The patent extracts extracellular catalytic components from living cells and uses them outside of cellular environments. By separating the catalytic functions from the cellular machinery, the system eliminates the need for cell maintenance, reproduction, and other biological requirements, thereby extending operational lifespan indefinitely while maintaining biochemical reaction capability.
Solution Approach 2:
The soil matrix provides a self-sustaining environment that stabilizes catalytic components without requiring external biological support systems. The matrix itself maintains the catalytic activity through its physical and chemical properties, eliminating the need for continuous cell culture and maintenance.
3Device complexity
If extracellular catalytic components are used outside soil matrix, then the system can be simplified, but the stability and lifespan of the catalysts decrease
Solution Approach 1:
The soil matrix serves as an intermediary stabilization medium for extracellular catalytic components. It provides a protective environment that maintains catalyst stability and activity, allowing the system to use simplified extracellular components rather than complex organisms while ensuring long-term reliability through the matrix's stabilizing effects.
4Productivity
If traditional microbial fuel cells are used, then electricity production is achieved, but the efficiency and durability are limited
Solution Approach 1:
The patent changes the fundamental parameters of the fuel cell system by replacing microbial cells with stabilized extracellular catalytic components in soil matrix. This parameter change from biological to abiotic catalysis improves both efficiency and durability, as the soil-stabilized catalysts maintain activity for extended periods without the limitations of microbial growth and maintenance.
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
This approach enables stable and long-term operation of biofuel cells, with enhanced electric performance and extended lifespan, utilizing soil matrix catalysts that maintain oxidative activity for hundreds of days, surpassing traditional microbial fuel cells in efficiency and durability.
Implementation Method 1
the soil matrix contains at least one of the two following properties: the presence of organic or mineral catalyzers including enzymes stabilized on soil particles
Implementation Method 2
the sterilized soil of the anode is able to convert chemical energy from organic compounds (CO2 released by oxidation reduction)
Implementation Method 3
enzymes stabilized on soil particles (e.g. enzymes of Krebs cycle)
Implementation Method 4
The invention can also be used to convert mineral compounds (H2O, CO2) and electricity into organic compounds which can further be used as source of energy in proposed biofuel cell or other systems. Therefore, this electrochemical conversion represents a mean to store energy.
Data Source
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AI summary
The present invention consists in biofuel cells and bioreactors of biocatalytic complex comprising sterilized soil; such biofuel cells and bioreactors use in vitro methods of reconstituting, manipulating and coupling multistep biochemical reactions or complete biochemical processes usually encountered in living cells using extracellular components of the intracellular metabolism (substrates, enzymes, co-factors) naturally present in soil matrix after sterilisation, such components of the intracellular metabolism may alternatively be added to said sterilized soil matrix.