Integrated DNA Profiling System for Rapid Field Analysis
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Solution Overview
Problem
Current DNA profiling systems are bulky, difficult to transport, expensive, and time-consuming, making them impractical for field use, such as on a battlefield, where rapid and portable genetic profiling is needed.
Innovation Solution
An integrated and automated sample-to-answer system that extracts and amplifies DNA, generating a genetic profile in less than two hours, with a smaller footprint, enabling on-the-go use and reduced operator skill requirements, utilizing an analyte preparation module with a sample cartridge for nucleic acid extraction and amplification, and a detection module for capillary electrophoresis analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If current DNA profiling systems are used, then accurate genetic profiling is achieved, but the systems are bulky and difficult to transport
Solution Approach 1:
The system is divided into separate functional modules including a sample preparation module, a nucleic acid extraction module, and a detection module. Each module can be independently optimized and combined, allowing the overall system to be compact yet maintain full functionality for accurate DNA profiling
Solution Approach 2:
The patent employs nested cartridge designs where sample cartridges containing extraction reagents are placed within larger processing modules. The cartridges themselves are nested within the instrument housing, creating a space-efficient configuration that maintains all necessary functions in a portable form factor
2Reliability
If current DNA profiling systems are used, then reliable analysis is achieved, but the systems are expensive to use and maintain
Solution Approach 1:
The system uses disposable cartridges pre-filled with extraction reagents and consumable components. These single-use cartridges eliminate the need for expensive maintenance of complex liquid handling systems, reducing long-term operational costs while maintaining reliable results through factory-prepared, quality-controlled reagent systems
Solution Approach 2:
The automated system performs sample processing, nucleic acid extraction, and detection without requiring extensive manual intervention or specialized operator skills. The system self-manages reagent dispensing, thermal cycling, and data analysis, reducing the need for expensive trained personnel and minimizing operational errors that could compromise reliability
3Measurement precision
If traditional sample preparation methods are used, then thorough DNA extraction is achieved, but the process takes one to two days
Solution Approach 1:
Reagents are pre-loaded into cartridges at optimal concentrations and configurations before use. The system performs rapid lysis, binding, washing, and elution steps in a predetermined sequence, eliminating the need for manual preparation steps and reducing total processing time from days to hours while maintaining extraction quality through factory-optimized protocols
Solution Approach 2:
The automated system performs DNA extraction and analysis in continuous automated cycles without manual intervention between steps. The integrated cartridge system allows seamless transitions between lysis, binding, washing, and elution phases, eliminating idle time and maintaining continuous productive action throughout the entire sample processing workflow
4Adaptability or versatility
If manual sample preparation is used, then flexibility is maintained, but operator skill requirements are high and automation is low
Solution Approach 1:
The system automatically manages the entire sample processing workflow including reagent dispensing, thermal cycling, and data analysis without requiring manual intervention. The automated cartridge system handles all complex operations internally, reducing the need for skilled operators while maintaining operational flexibility through programmable protocols that can be adjusted for different sample types and analysis requirements
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 provides rapid, portable, and cost-effective genetic profiling, capable of producing results in under two hours, facilitating use in remote or battlefield scenarios with minimal user input.
Implementation Method 1
extraction and isolation of nucleic acid
Implementation Method 2
amplification of nucleotide sequences at selected loci
Implementation Method 3
detection and analysis of amplification product
Data Source
AI summary
This disclosure provides an integrated and automated sample-to-answer system that, starting from a sample comprising biological material, generates a genetic profile in less than two hours. In certain embodiments, the biological material is DNA and the genetic profile involves determining alleles at one or a plurality of loci (e.g., genetic loci) of a subject, for example, an STR (short tandem repeat) profile, for example as used in the CODIS system. The system can perform several operations, including (a) extraction and isolation of nucleic acid; (b) amplification of nucleotide sequences at selected loci (e.g., genetic loci); and (c) detection and analysis of amplification product. These operations can be carried out in a system that comprises several integrated modules, including an analyte preparation module; a detection and analysis module and a control module.