Modulator-Based Isothermal Nucleic Acid Amplification
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Solution Overview
Problem
Current biological techniques for nucleic acid analysis, such as isothermal nucleic acid amplification, require centralized facilities, trained technicians, and specific resources, limiting their utility in point-of-care and resource-limited settings due to the need for sample preparation, refrigeration, and other infrastructure.
Innovation Solution
A method involving a modulator that acts on nucleic acids during isothermal nucleic acid amplification reactions, allowing for the modulation of amplification processes in a controlled manner, enabling efficient amplification and detection in various environments without the need for extensive resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If centralized laboratory facilities with trained technicians and refrigeration are used, then nucleic acid analysis accuracy and reliability are improved, but device complexity and resource requirements increase
Solution Approach 1:
The patent divides the nucleic acid analysis process into discrete functional modules including sample preparation modules, isothermal amplification modules, and detection modules. Each module is self-contained and can operate independently, eliminating the need for centralized laboratory facilities while maintaining analysis reliability through modular functionality.
Solution Approach 2:
The system incorporates automated sample preparation and processing capabilities that eliminate the need for trained technicians. The isothermal amplification module automatically performs nucleic acid amplification without requiring manual intervention, and the detection module provides automated results, making the system self-sufficient and reducing dependency on human expertise.
2Speed
If isothermal nucleic acid amplification is conducted without modulators, then amplification speed is improved, but measurement precision and detection accuracy deteriorate
Solution Approach 1:
The patent introduces modulator molecules that act as intermediaries between the isothermal amplification reaction and the detection system. These modulators specifically bind to amplification products and enhance their detectability without interfering with the rapid isothermal amplification process, thereby maintaining amplification speed while improving detection precision.
Solution Approach 2:
The system utilizes modulators that change the physical or chemical parameters of the amplification products, such as fluorescence intensity or binding affinity, to enhance detection sensitivity. This allows the system to maintain fast isothermal amplification while achieving high measurement precision through parameter enhancement rather than slowing down the reaction.
3Stability of the object's composition
If sample preparation and refrigeration are required, then nucleic acid stability is improved, but ease of operation and accessibility worsen
Solution Approach 1:
The patent employs isothermal amplification that operates at constant temperatures (e.g., 60-65°C) rather than requiring temperature cycling or refrigeration. This parameter change allows the system to maintain nucleic acid stability through controlled isothermal conditions while eliminating the need for refrigeration equipment, thereby improving ease of operation and accessibility to resource-limited settings.
4Reliability
If extensive resources and infrastructure are provided, then amplification reaction control is improved, but adaptability to resource-limited settings worsens
Solution Approach 1:
The patent extracts the essential amplification and detection functions into a self-contained system that operates independently of extensive external resources. The isothermal amplification module performs controlled nucleic acid amplification using minimal reagents, and the detection module provides results without requiring centralized laboratory infrastructure, enabling the system to maintain reliable amplification control while adapting to resource-limited environments.
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 facilitates efficient nucleic acid amplification and detection in resource-limited settings, providing a more accessible and flexible method for diagnosing diseases and analyzing samples, including infectious and genetic diseases, by modulating amplification reactions to produce positive signals in a subset of areas.
Implementation Method 1
conducting an isothermal nucleic acid amplification reaction in said volume in the presence of a modulator, wherein said modulator modulates said nucleic acid amplification reaction in the presence of said target nucleic acid molecule
Data Source
AI summary
The present invention relates to assays, including amplification assays, conducted in the presence of modulators. These assays can be used to detect the presence of particular nucleic acid sequences. In particular, these assays can allow for genotyping or other genetic analysis.