Waste-Sourced Mycelium Bonding via Biological Crosslinking
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Solution Overview
Problem
Conventional methods for producing fungal-based materials face challenges in achieving desired properties like tensile strength, durability, and waterproofing, and require mechanical means for bonding, which can lead to environmental issues and high carbon footprints.
Innovation Solution
A method involving waste-sourced mycelium substrates and a bonding agent that forms a durable, carbohydrate-based bond without mechanical means, using a mold and drying chamber to create a solid continuous mycelium layer with improved properties and reduced environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional chemical treatments are used to make mycelium durable and resistant to environmental stress, then durability and resistance are improved, but environmental harm and toxicity increase
Solution Approach 1:
The patent converts the naturally occurring mycelium growth process, which would normally compete for resources, into a beneficial bonding mechanism. By allowing mycelium to naturally grow and bind substrates together, the system eliminates the need for toxic chemical treatments while achieving durable, environmentally friendly composite materials.
Solution Approach 2:
The mycelium performs self-bonding by naturally growing and intertwining between substrate pieces. The bonding agent is applied once, and the mycelium autonomously creates durable bonds without requiring additional chemical treatments or mechanical fastening, reducing environmental harm while maintaining reliability.
2Strength
If mechanical bonding means (sewing, stitching, stapling) are used to attach mycelium-based materials, then bonding strength is achieved, but environmental impact and carbon footprint increase
Solution Approach 1:
The patent replaces mechanical bonding systems (sewing, stitching, stapling) with a biological bonding system. Mycelium naturally grows to form bonds between substrates, eliminating the need for mechanical fasteners and their associated environmental impacts while achieving sufficient bonding strength for the application.
Solution Approach 2:
The mycelium acts as a natural intermediary bonding agent between substrates. Instead of using mechanical fasteners or synthetic adhesives, the living mycelium grows to create a biological bridge that bonds materials together in an environmentally friendly manner.
3Ease of manufacture
If reduced processing of fungal tissue materials is used, then processing time and complexity are reduced, but mechanical characteristics deteriorate (low flexibility and high brittleness)
Solution Approach 1:
The patent applies the bonding agent to substrates before mycelium growth occurs. This preliminary preparation ensures that when mycelium grows, it can effectively bond the substrates together, achieving both processing simplicity and improved mechanical characteristics without requiring extensive post-processing.
Solution Approach 2:
The patent changes the physical state and composition of the bonding interface by introducing the bonding agent and controlling mycelium growth conditions. This parameter change enables the mycelium to form strong, flexible bonds rather than brittle connections, improving mechanical characteristics while maintaining processing simplicity.
4Productivity
If liquid or submerged cultures are used for propagation of filamentous hyphae, then large-scale production is enabled, but manipulation of growing fungal hyphae becomes difficult
Solution Approach 1:
The patent extracts the mycelium from liquid or submerged cultures and applies it as a bonding agent to substrates. This separation allows large-scale production of mycelium in fermentation vessels while the bonding application occurs on solid substrates, enabling easy manipulation and control of the bonding process without the difficulties of handling liquid cultures.
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 method produces stronger, more resilient fungal material composites with improved tensile strength, durability, and waterproofing, eliminating the need for mechanical bonding and reducing environmental harm, while utilizing fermentation waste streams effectively.
Implementation Method 1
a bonding agent for crosslinking the plurality of waste-sourced mycelium substrates thereby providing a durable bond between each of the plurality waste-sourced mycelium substrates
Implementation Method 2
the mold being incubated thereby allowing the plurality of waste-sourced mycelium to form a waste-sourced mycelium network that binds each of the plurality of waste-sourced mycelium substrates and the bonding agent together
Implementation Method 3
an adhesive layer for bonding the plurality of waste-sourced mycelium substrates within itself thereby enabling the formation of a solid continuous mycelium layer
Implementation Method 4
a drying chamber for enabling the dehydration of the plurality of waste-sourced mycelium substrates in a bonded state thereby retarding further growth of the plurality of waste-sourced mycelium substrates
Data Source
AI summary
A method for stitchless bonding of fungal materials includes providing a waste-sourced mycelium substrate sourced from fermentation waste streams, selecting a plurality of waste-sourced mycelium substrate portions to be bonded, applying a pressure activated adhesive layer between the selected portions of the waste-sourced mycelium substrate, agglomerating the selected portions of the waste-sourced mycelium substrate and bonding the selected portions of the waste-sourced mycelium materials together to form a durable bond without delamination. Thus, the waste-sourced mycelium substrate is biodegradable which serves as a sustainable alternative to animal leather or synthetic leather in various applications.