Membrane Separation Media for Rapid Protein Purification
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Solution Overview
Problem
Traditional protein purification methods are slow, costly, and difficult to scale due to the use of expensive resin-based columns that require slow flow rates and are prone to clogging and fouling.
Innovation Solution
Development of a separation media comprising a support substrate with immobilized separation ligands that include an affinity group capable of binding peptide purification tags, allowing for efficient protein purification in membrane chromatography.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional resin-based columns are used for protein purification, then purification effectiveness is maintained, but flow rate must be reduced and processing time increases
Solution Approach 1:
The patent employs porous support substrates with controlled pore sizes and distributions to enable rapid mass transfer of proteins while maintaining structural integrity. The porous structure provides high surface area for ligand immobilization, allowing efficient binding at high flow rates without compromising purification effectiveness.
Solution Approach 2:
The invention uses composite materials combining rigid support substrates with flexible ligand layers, creating a hybrid structure that optimizes both mechanical strength and binding capacity. This composite approach allows the material to withstand high flow rates while maintaining effective protein-ligand interactions.
2Quantity of substance
If resin-based columns are used for purification, then binding capacity is achieved, but the system becomes prone to clogging and fouling
Solution Approach 1:
The support substrate is segmented into a hierarchical pore structure with multiple size distributions, creating channels that prevent clogging while maintaining binding capacity. The segmented structure allows large proteins to access binding sites without blocking the overall flow path.
Solution Approach 2:
The patent applies local quality by creating regions with different pore sizes and ligand densities within the support substrate. Surface regions have optimized properties for preventing fouling, while internal regions maintain high binding capacity, allowing the system to resist clogging while achieving required binding levels.
3Reliability
If traditional purification methods are used, then protein separation is achieved, but cost increases due to specialized resin requirements
Solution Approach 1:
The patent employs disposable support substrates made from inexpensive, readily available materials that can be discarded after single use. This eliminates the need for expensive, specialized resins and complex regeneration processes, significantly reducing manufacturing costs while maintaining purification quality.
Solution Approach 2:
The invention changes the physical and chemical parameters of the support substrate, using materials with different mechanical and chemical properties than traditional resins. These parameter changes enable the use of cheaper materials that can be processed more easily and at lower cost while achieving equivalent purification performance.
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 separation media enables rapid and efficient purification of proteins with high binding capacity and reduced backpressure, overcoming the limitations of traditional resin-based columns.
Implementation Method 1
The affinity group capable of binding a peptide purification tag on a target protein
Data Source
AI summary
Separation media includes a support substrate and a plurality of separation ligands immobilized on the support substrate. The plurality of separation ligands include an affinity group capable of binding to a peptide purification tag on a target protein. Methods of making the separation media and methods of using the separation media are disclosed.