Bead-Based Multi-Analyte Detection System
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Solution Overview
Problem
Current nucleic acid sequencing and detection methods face challenges in efficiently capturing and identifying multiple analytes, particularly nucleotide and non-nucleotide analytes, due to limitations in probe-target ratios, background signal interference, and the need for custom genotyping panels.
Innovation Solution
A bead-based system that uses sensing probes specific to respective analytes, coupled with fluorophores and beads featuring unique codes, allowing for universal detection and decoding of analytes through fluorescence, enabling flexible and customizable multiomic detection of nucleotide and non-nucleotide analytes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional nucleic acid sequencing methods are used, then specific nucleic acid sequences can be detected, but the ability to simultaneously detect multiple analytes is limited
Solution Approach 1:
The patent employs a universal bead-based detection platform where the same bead array system can detect multiple different analytes (nucleic acids, proteins, metabolites) by simply changing the sensing probes while keeping the bead infrastructure constant. This multi-functional approach allows one detection system to serve multiple detection purposes without requiring separate specialized systems for each analyte type.
Solution Approach 2:
The detection system is segmented into distinct functional modules: sensing probes for analyte capture, fluorophores for signal generation, and beads for signal detection and identification. This modular segmentation allows independent optimization and replacement of each component to detect different analytes while maintaining the overall system architecture, thereby improving versatility without proportionally increasing complexity.
2Adaptability or versatility
If custom genotyping panels are used for specific analytes, then detection specificity is improved, but the flexibility to detect multiple analytes is reduced
Solution Approach 1:
The system enables dynamic reconfiguration by allowing researchers to swap sensing probes on the bead array according to the specific analytes being detected. The bead array infrastructure remains static, but the sensing probe composition can be dynamically adjusted to match different detection requirements, providing both flexibility and precision without requiring custom fabrication of entire detection panels for each application.
3Measurement precision
If probe-target ratios are optimized for specific analytes, then detection accuracy is improved, but background signal interference increases when detecting multiple analytes
Solution Approach 1:
The patent extracts the analyte capture function from the detection infrastructure by using soluble sensing probes that bind analytes in solution before the analyte-bead complex is formed. This separation allows optimization of probe-target ratios during the capture phase without creating permanent cross-hybridization structures that would generate background signal, thereby improving accuracy while reducing interference when multiple analytes are detected simultaneously.
4Productivity
If multiple analytes are detected on a single chip, then productivity is improved, but probe-target ratios and signal clarity become compromised
Solution Approach 1:
The bead array system provides local quality control by physically isolating different analyte detection reactions at separate bead locations. Each bead acts as an isolated reaction chamber where specific sensing probes can operate at optimal local probe-target ratios without interference from other analyte detection zones on the same chip, thereby maintaining signal clarity while enabling simultaneous multi-analyte detection and improving overall productivity.
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 enhances the efficiency of analyte capture and identification by decoupling enrichment from immobilization, reducing background noise, and allowing for simultaneous detection of various analytes on a single platform, improving hybridization kinetics and signal amplification.
Implementation Method 1
The method may include respectively coupling fluorophores to sensing probes that captured respective analytes. The method may include identifying the beads that are coupled to the sensing probes that captured analytes using at least fluorescence from the fluorophores coupled to those sensing probes.
Data Source
AI summary
A method for detecting different analytes includes mixing different analytes with sensing probes, wherein at least some of the sensing probes are specific to respective ones of the analytes. The analytes respectively are captured by the sensing probes that are specific to those analytes. Fluorophores respectively are coupled to sensing probes that captured respective analytes. The sensing probes are mixed with beads, wherein the beads are specific to respective ones of the sensing probes, and wherein the beads include different codes identifying the analytes to which those sensing probes are specific. The sensing probes respectively are coupled to beads that are specific to those sensing probes. The beads are identified that are coupled to the sensing probes that captured analytes using at least fluorescence from the fluorophores coupled to those sensing probes. The analytes that are captured are identified.