Integrated Oligonucleotide Synthesis System for Hazardous Area Safety
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Solution Overview
Problem
Current systems for oligonucleotide production face challenges such as rudimentary manual processes, temperature control issues during deprotection, lack of certification for hazardous areas, and inefficient ultrafiltration and diafiltration operations, requiring separate equipment and locations.
Innovation Solution
A single integrated system for cleavage, deprotection, ultrafiltration, and diafiltration that is automated, certified for hazardous areas, and optimized for temperature control, using shared equipment and processes to minimize equipment needs and enhance safety and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual or substantially manual processes are used for cleavage and deprotection, then equipment requirements are reduced, but productivity and processing efficiency deteriorate
Solution Approach 1:
The patent combines multiple separate operations (cleavage, deprotection, ultrafiltration, and diafiltration) into a single integrated automated system. This merging eliminates the need for multiple separate manual processes and auxiliary equipment while significantly improving productivity through automation. The system performs all these operations in one continuous automated workflow within a single facility.
Solution Approach 2:
The patent replaces manual mechanical operations with an automated control system that manages fluid delivery, filtration, and processing. The automated system uses programmed sequences to control pumps, valves, and filtration units, substituting human-operated mechanical processes with an integrated automated control architecture that improves both efficiency and consistency.
2Productivity
If deprotection processes use exothermic acid addition, then deprotection effectiveness is improved, but temperature control becomes difficult and process stability deteriorates
Solution Approach 1:
The patent incorporates temperature monitoring and control mechanisms that provide feedback during the exothermic deprotection process. The system monitors temperature changes in real-time and adjusts acid addition rates or cooling inputs accordingly to maintain stable temperature conditions while achieving effective deprotection.
Solution Approach 2:
The patent applies preliminary cooling measures and controlled acid dosing before and during the exothermic reaction to prevent excessive temperature rises. By pre-cooling reactants and controlling the rate of acid addition, the system counteracts the harmful thermal effects before they can compromise process stability.
3Reliability
If separate ultrafiltration and diafiltration systems are used, then process safety is improved by isolating hazardous operations, but device complexity and facility requirements increase
Solution Approach 1:
The patent merges ultrafiltration and diafiltration operations into a single integrated system that can handle hazardous solvents safely. The unified system includes integrated filtration units, automated fluid handling, and controlled environments that maintain safety standards while reducing the need for separate isolated facilities and equipment.
Solution Approach 2:
The patent designs a multi-functional system that performs cleavage, deprotection, ultrafiltration, and diafiltration operations within a single platform. This universal system is engineered to safely handle hazardous chemicals throughout all operations, eliminating the need for separate specialized equipment for each function while maintaining appropriate safety controls.
4Quantity of substance
If large vessels are used for diafiltration to accommodate buffer dosing, then dosing capacity is improved, but volume efficiency and equipment footprint deteriorate
Solution Approach 1:
The patent employs dynamic buffer dosing strategies where the dosing rate and volume are adjusted in real-time based on process requirements. The system uses controlled addition rates and recirculation mechanisms to achieve effective diafiltration with smaller vessel volumes, optimizing the balance between dosing capacity and equipment footprint.
Solution Approach 2:
The patent implements continuous buffer addition and recirculation during diafiltration operations rather than requiring large batch doses. The continuous flow approach maintains effective buffer concentration and exchange efficiency while using significantly smaller vessel volumes compared to traditional batch methods.
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 system enables efficient, safe, and automated oligonucleotide production by reducing equipment requirements, allowing operations in hazardous areas, and optimizing temperature control, thereby improving processing time and reducing risks.
Implementation Method 1
a heat exchanger configured to cool or heat the solution
Implementation Method 2
a peristaltic pump configured to move the solution through the system
Implementation Method 3
an ultrafiltration membrane configured to separate molecules from the solution
Implementation Method 4
performing a diafiltration step to carry out one or more buffer exchanges
Data Source
AI summary
Provided herein are common systems for performing cleavage, deprotection, ultrafiltration, and diafiltration operations for producing an oligo product. Also provided are methods of synthesizing an oligo product with a common system as disclosed herein, and oligonucleotides synthesized by the methods disclosed herein.