LAMP Primer Set for Rapid, Specific Vibrio Detection
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Solution Overview
Problem
There are no known primers for loop-mediated isothermal amplification (LAMP) that can specifically and accurately detect Vibrio parahaemolyticus without producing false positives, and there is a need for rapid detection methods within short timeframes.
Innovation Solution
Development of primers, including LampF, DisF, LoopF, and optional LoopB, targeting the VP175 gene of Vibrio parahaemolyticus, with high sequence homology, for use in LAMP amplification and detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional detection methods are used for Vibrio parahaemolyticus, then detection can be performed with existing protocols, but the detection time is prolonged and false positives may occur
Solution Approach 1:
The patent changes the detection parameters by developing specific LAMP primers (LampF, LampB, DisF, DisB, LoopF, LoopB) with optimized sequences targeting V. parahaemolyticus. These primers enable isothermal amplification at constant temperature (60-65°C) rather than requiring complex thermal cycling, achieving both rapid detection (under 60 minutes) and high specificity to eliminate false positives from conventional methods
Solution Approach 2:
The patent replaces the mechanical thermal cycling system of conventional PCR with an isothermal amplification system. The LAMP method substitutes the complex temperature cycling mechanism with a constant temperature reaction, simplifying the detection system while maintaining amplification efficiency and enabling rapid results within 60 minutes
2Reliability
If LAMP amplification is performed without specific primers for Vibrio parahaemolyticus, then the method can be applied generally, but false positives occur and specific detection is not achieved
Solution Approach 1:
The patent segments the detection system into six specific primer components (LampF, LampB, DisF, DisB, LoopF, LoopB) with uniquely optimized sequences for V. parahaemolyticus. Each primer targets specific regions of the bacterial DNA, and their combination provides highly specific amplification that eliminates false positives while maintaining methodological simplicity
Solution Approach 2:
The patent creates a universal LAMP detection system that can specifically identify V. parahaemolyticus through optimized primers. The same six-primer LAMP framework can be applied to detect this specific pathogen reliably, and the methodology can be adapted to detect other pathogens by changing only the primer sequences, providing both specificity and versatility
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 developed primers enable specific and rapid detection of Vibrio parahaemolyticus, distinguishing it from other Vibrio species, with results achievable in under 60 minutes.
Implementation Method 1
Loop-mediated isothermal amplification (LAMP) is a method of amplifying DNA that has been described, for example, in WO0028082, WO0134790, and WO0177317.
Data Source
AI summary
Primers and primer sets for amplification of Vibrio parahaemolyticus DNA and methods of detecting Vibrio parahaemolyticus using the primers and primer sets.