Triazine-Based Affinity Adsorbents for Plasminogen Binding Capacity
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Solution Overview
Problem
Current affinity chromatography materials for plasminogen have limited binding capacity while maintaining high purity, which restricts the efficient isolation and purification of plasminogen from complex mixtures like human plasma.
Innovation Solution
Development of novel triazine-based compounds linked to a solid support, such as agarose or silica, which selectively bind plasminogen, increasing the dynamic binding capacity while maintaining high purity through affinity chromatography.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If immobilised lysine on a solid support is used for affinity chromatography, then excellent purity is achieved (>95%), but binding capacity is limited (0.6-1.0 mg protein/mL)
Solution Approach 1:
The patent changes the chemical structure of the ligand from lysine to triazine-based compounds with various aromatic groups and substituents. This parameter change in molecular structure enables both high binding capacity (up to 17.0 mg/mL) and high purity (>85%), resolving the contradiction between limited capacity and excellent purity
Solution Approach 2:
The patent creates composite affinity adsorbents by combining triazine rings with various aromatic groups (benzene, naphthalene, benzthiazole, benzoxazole, pyrazole, indazole, benzimidazole) and functional substituents. These composite ligand structures provide enhanced binding capacity while maintaining selective affinity for plasminogen, achieving both high capacity and purity
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 novel triazine-based compounds achieve a significant increase in plasminogen binding capacity, with some variants showing a dynamic binding capacity of up to 17.0 mg/mL, while maintaining purity greater than 85% in chromatography experiments, effectively addressing the limitations of existing materials.
Implementation Method 1
affinity-based isolation of plasminogen... affinity chromatography process... selectively bind plasminogen, increasing the dynamic binding capacity while maintaining high purity through affinity chromatography
Data Source
AI summary
For the separation, removal, isolation, purification, characterisation, identification or quantification of plasminogen or a protein that is a plasminogen analogue, an affinity adsorbent is used that is a compound of formula (II) wherein one X is N and the other is N, C-Cl or C-CN; A is a support matrix, optionally linked to the triazine ring by a spacer; Z is O, S or N-R and R is H, C1-6 alkyl, C1-6 hydroxyalkyl, benzyl or ß-phenylethyl; B is an optionally substituted hydrocarbon linkage containing from 1 to 10 carbon atoms; D is H, OH or a primary amino, secondary amino, tertiary amino, quaternary ammonium, imidazole, guanidino or amidino group; or B-D is -CHCOOH-(CH2)3-4-NH2; and q is 2 to 6.