Microfluidic Cartridge for Automated Nucleic Acid Analysis
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Solution Overview
Problem
Current nucleic acid analysis methods are time-intensive and require substantial expertise, limiting their efficiency and accessibility for applications such as forensic and diagnostic testing.
Innovation Solution
A microfluidic cartridge system with integrated modules for nucleic acid extraction, amplification, and separation, utilizing a fluidic network with enzymatic mixtures, thermal control, and high-voltage electrophoresis, allowing for rapid and automated analysis of biological samples in micro-liter volumes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional nucleic acid analysis methods are used, then accurate genetic testing can be performed, but the process is time-intensive and requires substantial expertise
Solution Approach 1:
The analysis system is divided into distinct functional modules including sample接受or, extraction mixture reservoir, mixing chamber, amplification chamber, and separation channel. Each module performs a specific function in the nucleic acid analysis workflow, allowing parallel processing and reducing overall analysis time while maintaining accuracy through specialized optimization of each segment
Solution Approach 2:
The extraction mixture reservoir pre-loads enzymatic mixtures and reagents before sample analysis begins. Thermal modules are pre-positioned and the fluidic network is pre-configured, allowing the analysis to start immediately upon sample insertion without preparation delays
2Measurement precision
If traditional nucleic acid analysis methods are used, then comprehensive genetic analysis can be performed, but substantial expertise is required
Solution Approach 1:
The system performs automated sample processing through the microfluidic cartridge, which automatically mixes reagents, controls thermal cycling, and separates nucleic acids without requiring manual intervention. The controller module manages the entire workflow, reducing the need for operator expertise while maintaining analysis quality
Solution Approach 2:
The microfluidic cartridge integrates multiple functions including sample acceptance, nucleic acid extraction, amplification, and separation into a single device. The thermal modules serve dual purposes for both extraction and amplification processes, while the fluidic network handles multiple reagent deliveries and waste removal, making the system accessible to users with minimal training
3Productivity
If rapid nucleic acid analysis is implemented, then analysis time is reduced, but automation and integration are required
Solution Approach 1:
Multiple analysis functions are merged into a single microfluidic cartridge that includes the sample接受or, extraction mixture reservoir, mixing chamber, amplification chamber, and separation channel. The thermal modules are integrated to provide both extraction and amplification heating/cooling, and the fluidic network combines reagent delivery, sample transport, and waste removal functions, achieving rapid analysis through consolidation rather than separate automated devices
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
Enables rapid nucleic acid analysis in less than two hours with minimal user expertise, improving the efficiency and speed of genetic testing while maintaining data accuracy.
Implementation Method 1
a plurality of vent ports and fluidic channels in the fluidic network configured to effectuate hydrodynamic movement within the fluidic network
Implementation Method 2
an extraction thermal module configured to impart temperatures to any of the microfluidic cartridge and a sample acceptor during nucleic acid extraction
Implementation Method 3
an amplification thermal module configured to impart temperatures to the microfluidic cartridge during nucleic acid amplification
Implementation Method 4
a high voltage module configured to apply high voltages on the microfluidic cartridge, and a separation channel in the microfluidic cartridge configured to separate nucleic acid fragments
Data Source
AI summary
A microfluidic cartridge can include at least one nucleic acid analysis portion. Each nucleic acid analysis portion can include a fluidic network being configured for micro-liter volumes or less, a sample input at the beginning of the fluidic network, a plurality of vent ports and fluidic channels in the fluidic network configured to effectuate hydrodynamic movement within the fluidic network, an extraction mixture reservoir in the fluidic network, a mixing chamber in the fluidic network, an amplification chamber in the fluidic network, and a separation channel in the fluidic network. A nucleic acid analyzer can be capable of performing nucleic acid analysis using the microfluidic cartridge. A nucleic acid analysis method can be performed using the microfluidic cartridge.