Polyether Nanopore Sensing Compositions for Similar Biomolecule Detection
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Solution Overview
Problem
Nanopore detection techniques struggle to accurately distinguish biomolecules with similar physical properties such as charge, size, or structural conformation, limiting their detection and resolution capabilities.
Innovation Solution
The use of polyether agents in nanopore sensing solutions, particularly those with smaller molecular weights and specific structures, enhances the detection and characterization of biomolecules by facilitating distinct current signals during translocation through nanopores.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional nanopore buffers are used, then the nanopore device can detect biomolecules, but the accuracy and resolution of detecting biomolecules with similar physical properties deteriorates
Solution Approach 1:
The patent introduces polyether agents as intermediary substances in the sensing solution. These agents mediate the interaction between biomolecules and nanopores by modifying the local environment, enhancing the distinction of current signals for biomolecules with similar physical properties, thereby improving detection accuracy and resolution
Solution Approach 2:
The patent changes the chemical composition parameters of the sensing solution by incorporating polyether agents with specific molecular weights and structures. This parameter change modifies the physical-chemical environment within the nanopore, enabling better discrimination of biomolecules that would otherwise be indistinguishable using conventional buffers
2Measurement precision
If polyether agents are added to sensing solutions, then detection accuracy improves, but solution composition complexity increases
Solution Approach 1:
The patent applies local quality by introducing polyether agents that specifically modify the local environment within the nanopore region rather than uniformly changing the entire solution. This localized modification enhances detection accuracy while maintaining relatively simple bulk solution composition
Solution Approach 2:
The sensing solution becomes a composite system combining conventional buffer components with polyether agents. This composite approach leverages the benefits of both simple buffer systems and the enhanced discrimination capability of polyether compounds, achieving improved detection without excessive complexity
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
Improves the accuracy of detecting and resolving biomolecules with similar physical characteristics, enabling applications in diagnostics, genetic screening, and drug screening by providing enhanced sensitivity and discrimination.
Implementation Method 1
The interplay between friction (e.g., viscosity), electrophoretic force and thermal motions imposes limits on biomolecule detection and resolution
Implementation Method 2
The interplay between friction (e.g., viscosity), electrophoretic force and thermal motions imposes limits on biomolecule detection and resolution
Data Source
AI summary
The invention relates to compositions, methods, devices, systems, and kits for detecting and characterizing molecules using a nanopore device.