Chimeric Reporter Nucleotide Probes for Precise Small Molecule Detection
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Solution Overview
Problem
Traditional detection systems for small molecules, such as hormones, suffer from issues like non-specific binding, variability, and inconsistent performance, particularly in ELISA assays, which affect measurement accuracy and precision.
Innovation Solution
The use of chimeric reporter nucleotide probes (CRNPs) with DNA linkers that covalently attach small molecules to single-stranded nucleic acids, forming stable double-strand duplexes, enhancing stability, sensitivity, and specificity, and allowing for interchangeable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional detection systems are used for small molecules, then the detection process is simple, but the measurement precision and reliability are poor due to non-specific binding and variability
Solution Approach 1:
The detection system is segmented into distinct functional modules: a competitive antigen component, a DNA linker component, and a signaling reporter component. This segmentation allows each component to perform its specific function optimally, reducing non-specific binding and improving measurement precision while maintaining manageable system complexity through modular design.
Solution Approach 2:
A DNA linker acts as an intermediary component between the competitive antigen and the signaling reporter. This intermediary provides stable covalent attachment while enabling controlled interaction, reducing variability and improving measurement accuracy without significantly increasing system complexity.
2Reliability
If chimeric reporter nucleotide probes with DNA linkers are used, then stability and sensitivity are improved, but the device complexity increases
Solution Approach 1:
The competitive antigen, DNA linker, and signaling reporter are merged into a single chimeric reporter nucleotide probe structure. This merging improves reliability by ensuring stable covalent attachment and consistent performance, while the integrated design actually simplifies the overall system compared to separate components that would require additional assembly steps and quality control.
Solution Approach 2:
The probe uses composite material structure combining organic antigen molecules with nucleic acid DNA linkers and reporter molecules. This composite approach enhances stability and sensitivity through the complementary properties of each material component, while the standardized composite structure reduces complexity through predictable behavior and simplified manufacturing.
3Measurement precision
If chimeric reporter nucleotide probes are used, then sensitivity and signal strength are enhanced, but the manufacturing precision requirements increase
Solution Approach 1:
The DNA linker is designed with pre-defined attachment sites for both the competitive antigen and signaling reporter, allowing for controlled sequential conjugation. This preliminary structural design enables consistent manufacturing by guiding the conjugation process, achieving high detection sensitivity while maintaining manufacturing precision through standardized attachment protocols.
Solution Approach 2:
The DNA linker length and sequence are optimized as controllable parameters to achieve the desired balance between sensitivity and manufacturing feasibility. By adjusting these parameters systematically, high signal strength is achieved while maintaining consistent conjugate production through parameter standardization.
Data Source
AI summary
The present technology relates in general to the enhanced detection and quantitative analysis of one or more small molecules in a biological sample. In particular, the technology disclosed herein relates to the detection and analysis of biologically relevant molecules, hormones and other clinically relevant biomolecules. In one aspect, the systems and methods comprise contacting the biological sample with a chimeric reporter nucleotide probe, and determining the concentration of the small molecule in the biological sample.