Flow-Based Peptide Synthesis Heating and Mixing
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Solution Overview
Problem
Current solid phase peptide synthesis methods are slow and inefficient, requiring long times to add a single amino acid residue, with conventional techniques taking 30 to 90 minutes, and have not seen significant improvements in speed over 30 years despite the commercial success of automated synthesizers.
Innovation Solution
The development of flow-based synthesis systems that heat and mix reagents quickly, allowing for continuous peptide synthesis with high yields by exposing heated amino acids to immobilized peptides within seconds and using specialized techniques for mixing and pressure control to reduce synthesis time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional solid phase peptide synthesis methods are used, then peptide synthesis can be performed with standard procedures, but the synthesis time is excessively long (30 to 90 minutes per amino acid addition)
Solution Approach 1:
The patent applies parameter changes by heating the amino acid solution to elevated temperatures (e.g., 60-90°C) before exposure to the resin-bound peptide. This temperature parameter change accelerates the coupling reaction kinetics, reducing the amino acid addition time from 30-90 minutes to under 5 minutes while maintaining high yields and purity.
2Speed
If heating is applied to accelerate the reaction, then synthesis speed increases, but reagent stability and reaction control may be compromised
Solution Approach 1:
The patent applies preliminary action by pre-heating the amino acid solution to the desired temperature before it contacts the resin-bound peptide. This ensures that the reagent is already at optimal temperature for rapid reaction when exposure occurs, allowing fast kinetics without compromising yield or purity. The heating is performed in advance during the flow process, not during the actual coupling moment.
Solution Approach 2:
The patent uses a flow-based system where heated amino acid solutions are continuously pumped through the resin column. This hydraulic approach ensures uniform temperature distribution and controlled exposure time, maintaining reliability while achieving rapid synthesis. The flow system allows precise control of reagent residence time and temperature profiles.
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 enables amino acid addition cycles to be completed in under 5 minutes, achieving high yields and purity without double coupling or double deprotection, and can synthesize peptides 10 times faster than conventional methods, with the potential for further acceleration through automation and optimized reactor design.
Implementation Method 1
heating a stream comprising amino acids such that the temperature of the amino acids is increased by at least about 1° C.
Data Source
AI summary
Systems and processes for performing solid phase peptide synthesis are generally described. Solid phase peptide synthesis is a known process in which amino acid residues are added to peptides that have been immobilized on a solid support. In certain embodiments, the inventive systems and methods can be used to perform solid phase peptide synthesis quickly while maintaining high yields. Certain embodiments relate to processes and systems that may be used to heat, transport, and/or mix reagents in ways that reduce the amount of time required to perform solid phase peptide synthesis.