Crosslinked Biological Sorbents Stabilized in Digestive Fluids
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Solution Overview
Problem
Current crosslinked biological components are limited by acidic conditions and proteases in the digestive environment, leading to degradation and loss of functional properties, which restricts their activity and stability throughout the digestive system.
Innovation Solution
Crosslinked biological components are immobilized using a support matrix and crosslinking agents, such as chitosan and glutaraldehyde, to enhance stability and reactivity, allowing them to maintain functionality and sorbency in digestive fluids, including those with low pH and high protease concentrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If crosslinked biological components are used, then separation and reuse are improved, but stability in digestive environment deteriorates due to acid and protease degradation
Solution Approach 1:
A protective coating layer acts as an intermediary between the crosslinked biological component and the digestive environment. This coating shields the biological component from acid and protease degradation while allowing the component to maintain its catalytic activity and functional properties throughout the digestive system
Solution Approach 2:
The invention creates a composite structure combining the crosslinked biological component with protective materials that resist digestive conditions. This composite approach integrates the advantages of crosslinked components (separation, reuse) with the benefits of protective materials (acid and protease resistance)
2Reliability
If protective coating is applied, then stability in digestive environment is improved, but reactivity and functional activity deteriorate due to barrier effects
Solution Approach 1:
The protective coating is designed with spatially varying properties - it provides maximum protection in regions exposed to acid and proteases while maintaining high permeability and thinness in regions where substrate access and product release are critical. This local quality optimization ensures both stability and reactivity
3Stability of the object's composition
If crosslinking is performed, then structural stability is improved, but flexibility and adaptability deteriorate due to rigid network formation
Solution Approach 1:
The crosslinking network is designed with dynamic characteristics, incorporating reversible crosslinks or flexible linkages that allow the structure to adapt to changing environmental conditions while maintaining overall structural integrity. This enables the biological component to maintain both stability and flexibility
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 immobilized biological components demonstrate enhanced stability and reactivity, retaining 6 to 7 times the activity of their soluble counterparts and maintaining functionality for extended periods within the digestive system, including up to 4 hours, with enhanced sorbency and resistance to degradation.
Implementation Method 1
Crosslinked biological components are immobilized using a support matrix and crosslinking agents
Implementation Method 2
having increased or enhanced sorbency, and increased or enhanced functional properties throughout that exposure
Data Source
AI summary
Reactive and sorbent materials including a non-encapsulated crosslinked biological material immobilized on a support matrix that includes a polyamine and at least one support material are described. The support material can be an inorganic or organic support material. The reactive and sorbent materials are formed by reacting the biological material with the polyamine, at least one support material, and a crosslinking agent. The materials exhibit enhanced properties generally, are capable of maintaining their reactive and sorbent properties in contact with digestive fluids, and exhibiting their reactive and sorbent properties as they pass throughout an organism's entire digestive system. Reactive and sorbent materials in contact with digestive juices at pH's ranging from about 3 to about 7 have maintained their reactive and sorbent properties for at least 4 hours.