High Shear Solid Phase Peptide Synthesis
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Solution Overview
Problem
Current methods for large-scale peptide synthesis are limited by inefficiencies in synthesis time, yield, and side reactions, particularly due to sensitivity to shear forces which can alter the secondary and tertiary structures of peptides, leading to loss of biological activity and interruption of the synthesis process.
Innovation Solution
The use of high shear forces during solid phase synthesis, employing a stirring apparatus with an impeller rotating at rates of at least 600 rounds per minute to maintain a shear rate of at least 3×10^3 sec^-1, which improves synthesis efficiency, yield, and purity without damaging the solid support or synthesized molecules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high shear forces are applied during solid phase synthesis, then synthesis efficiency and productivity are improved, but peptide secondary and tertiary structures may be altered leading to loss of biological activity
Solution Approach 1:
The patent applies high shear forces (increasing the shear rate parameter) during solid phase synthesis to improve mixing efficiency and reaction kinetics. By carefully controlling the shear rate parameter within an optimized range, the patent achieves enhanced productivity while preventing damage to peptide secondary and tertiary structures, thus resolving the contradiction between synthesis efficiency and peptide structural integrity.
2Loss of time
If high shear forces are applied during solid phase synthesis, then synthesis time is reduced and productivity increases, but side reactions may increase affecting product purity
Solution Approach 1:
The patent optimizes the shear rate parameter to achieve a balance where synthesis time is significantly reduced through improved mixing and mass transfer, while the controlled high shear conditions actually enhance reaction completeness and reduce side reactions. The optimized shear rate ensures rapid coupling reactions with high conversion efficiency, thereby improving both productivity and product purity simultaneously.
3Stability of the object's composition
If traditional low shear mixing is used, then peptide structural integrity is maintained, but synthesis efficiency and productivity are limited
Solution Approach 1:
The patent fundamentally changes the shear rate parameter from traditional low shear conditions to optimized high shear conditions. This parameter change dramatically improves synthesis efficiency by enhancing mixing efficiency, mass transfer, and reaction kinetics. The controlled high shear environment maintains peptide structural integrity while achieving significantly higher productivity, thus resolving the contradiction between structural stability and synthesis efficiency.
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
This approach enhances synthesis efficiency, reduces side reactions, and maintains the integrity of the peptides, allowing for faster and more reliable production of peptides and other oligomers with improved yield and purity.
Implementation Method 1
The use of high shear forces during solid phase synthesis, employing a stirring apparatus with an impeller rotating at rates of at least 600 rounds per minute to maintain a shear rate of at least 3×10^3 sec^-1
Data Source
AI summary
The present disclosure relates to solid phase synthesis of organic molecules and particularly to highly efficient methods for synthesizing polymers, such as peptides, nucleotides or saccharides, employing solid phase synthesis.