Saccharide-Linker Separation Material for Antibody Removal

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Solution Overview

Problem

Current separation materials for blood components, such as those used in extracorporeal treatments, do not adequately enhance the removal of anti-A and anti-B antibodies from whole blood or plasma, indicating a need for improved performance in selectively binding and removing these substances.

Innovation Solution

A saccharide-linker-matrix separation material is developed, where the saccharide is glycosidically coupled to a linker attached to a synthetic polymeric or polysaccharide matrix, specifically designed to target and remove blood group antibodies from whole blood or plasma.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional separation materials are used, then the basic function of separating blood components is maintained, but the removal efficiency of anti-A and anti-B antibodies is insufficient

Engineering Contradiction:
Improveantibody removal efficiencyVSAvoidseparation performance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent modifies the chemical structure parameters of the separation material by introducing specific saccharide moieties (blood group A and B determinants) coupled to a matrix via linkers. This changes the binding characteristics to enhance selective recognition and binding of anti-A and anti-B antibodies, thereby improving removal efficiency while maintaining separation reliability

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention creates a composite separation material consisting of multiple components: a matrix (providing structural support), linkers (providing connectivity), and saccharide moieties (providing selective binding). This composite structure enables enhanced antibody removal efficiency while maintaining the reliability of the separation process

Inventive Principle:
Principle #40Composite materials

2Productivity

If the saccharide to linker ratio is not optimized, then the material structure remains stable, but the separation efficiency and specificity for blood components is reduced

Engineering Contradiction:
Improveseparation efficiencyVSAvoidsaccharide to linker ratio control
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent optimizes the saccharide to linker ratio as a critical parameter to achieve enhanced separation efficiency. By controlling the amount of saccharide moieties coupled per linker unit, the material achieves optimal binding capacity for blood group antibodies while maintaining structural stability and specificity

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention applies partial action by using a controlled, optimized ratio of saccharide to linker rather than maximum possible coupling. This partial optimization ensures sufficient binding sites for high separation efficiency while avoiding excessive coupling that would compromise structural integrity and specificity

Inventive Principle:
Principle #16Partial or excessive action

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 saccharide-linker-matrix material effectively reduces the titer of anti-A and anti-B antibodies, optimizing the ratio of saccharide to linker for enhanced antibody removal, improving the separation efficiency and specificity for blood components.

Implementation Method 1

a saccharide which is bound via a linker to a matrix for enabling the separation of substances from a liquid that selectively bind to saccharide moieties

Methodology Applied
Scientific EffectMolecular recognition:

Data Source

PatentUS9259710B2Separation material comprising saccharide ligands
Publication Date: 2016.02.16 GAMBRO LUNDIA AB
  • US9259710B2 patent drawing
  • US9259710B2 patent drawing
  • US9259710B2 patent drawing

AI summary

A separation material includes a saccharide bound via a linker to a matrix for enabling the separation from a liquid of substances that selectively bind to saccharide moieties. A method for preparing the material, a method for separating from a liquid substances that selective bind to saccharides, and a device including the separation material are also disclosed.