Microfluidic Chip Waveform Profiling for Genomic DNA Identification
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Solution Overview
Problem
Current molecular diagnostic devices are limited in their ability to rapidly and accurately characterize genomic material from samples, particularly in identifying organisms like bacteria and viruses, due to imprecise standard microbiological methods and the need for known primers in PCR, which restricts analysis to known organisms, and lack automation in waveform profiling.
Innovation Solution
A molecular diagnostic device comprising a cartridge with a binding and release substrate for genomic material and a microfluidic chip for amplification and detection, enabling automated isolation, amplification, and mapping of genomic material, allowing for simultaneous processing of multiple samples without cross-contamination and portable use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If standard microbiological methods (culturing and Gram-staining) are used for organism identification, then the process is simple and accessible, but the identification precision is insufficient and cannot differentiate among different organisms or strains
Solution Approach 1:
The patent replaces mechanical microbiological methods (culturing, staining) with molecular biological methods (PCR, waveform profiling) that use chemical and biochemical processes to achieve precise genomic DNA analysis for organism identification
Solution Approach 2:
The patent changes the identification approach from phenotypic parameters (morphology, staining characteristics) to genotypic parameters (genomic DNA sequences, melting temperature profiles), enabling differentiation at the strain level
2Measurement precision
If PCR is used for organism detection, then small amounts of genomic material can be detected, but the method is limited to known organisms requiring specific primers and cannot provide mapping information
Solution Approach 1:
The patent combines PCR (for sensitive detection of known organisms) with waveform profiling (for broad-spectrum detection and mapping of any genomic DNA) into a single integrated system, enabling both specific detection and exploratory analysis
Solution Approach 2:
The patent segments the analysis into two complementary approaches: PCR targeting specific known sequences for sensitive detection, and waveform profiling analyzing overall genomic structure for broader identification and mapping capabilities
3Productivity
If automated inline PCR platforms are used, then throughput and automation are increased, but the ability to further analyze and map genomic material after PCR is lacking
Solution Approach 1:
The patent merges automated PCR amplification with waveform profiling analysis in a single integrated platform, allowing genomic material to be both amplified for sensitivity and subsequently analyzed for mapping and identification purposes
4Adaptability or versatility
If waveform profiling is used for organism identification, then detection can be performed without knowing the organism identity, but the method does not provide mapping or sequence information of the genomic material
Solution Approach 1:
The patent uses PCR amplification as an intermediary step that preserves and enriches the genomic material, enabling subsequent waveform profiling analysis to generate both identification data and mapping information from the amplified products
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
Facilitates rapid and accurate characterization of genomic material, enabling on-site genetic testing within an hour of sample procurement, overcoming limitations of existing technologies by automating the process and allowing for simultaneous processing and mapping of genomic material.
Implementation Method 1
the solid substrate capable of binding and releasing genomic material (i.e., binding and release substrate) comprises charge switch material
Data Source
AI summary
At least one exemplary embodiment of the invention is directed to a molecular diagnostic device that comprises a cartridge configured to eject samples comprising genomic material into a microfluidic chip that comprises an amplification area, a detection area, and a matrix analysis area.