Water-Soluble Conjugated Polymers for Multiplex Biomarker Detection
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Solution Overview
Problem
Current methods for detecting proteins lack effective signal enhancement and multiplexing capabilities, limiting their sensitivity and ability to detect multiple analytes simultaneously.
Innovation Solution
Development of water-soluble conjugated polymers with specific structural features, including non-ionic side groups, polymer modifying units, and functional groups for conjugation, which can enhance fluorescent signals and enable multiplexing by tuning their structure to operate at different wavelengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional fluorescent reporters (dyes) are used for protein detection, then the assay can be performed with simple methodology, but the detection sensitivity remains limited and cannot achieve previously unattainable detection levels
Solution Approach 1:
The patent changes the physical-chemical parameters of the fluorescent reporter by using conjugated polymers with tunable properties. The polymers can be designed with specific band gaps, fluorescence quantum yields, and excitation/emission wavelengths to optimize detection sensitivity for different protein targets while maintaining assay feasibility
Solution Approach 2:
The patent employs composite fluorescent reporters consisting of conjugated polymer structures combined with protein-binding ligands. These composite materials integrate the light-emitting properties of conjugated polymers with the target-specific recognition of ligands, achieving enhanced sensitivity without proportionally increasing assay complexity
2Adaptability or versatility
If conventional fluorescent reporters are used, then the assay design is straightforward, but the ability to detect multiple analytes simultaneously (multiplexing) is limited
Solution Approach 1:
The patent segments the detection system into multiple independent conjugated polymer reporters, each tuned to detect a specific analyte at different wavelengths. This segmentation allows simultaneous detection of multiple analytes in a single assay without requiring complex interaction between detection channels
Solution Approach 2:
The patent creates universal conjugated polymer platforms that can be adapted for detecting multiple different analytes by simply changing the polymer structure or ligand component. This multi-functionality enables the same basic assay framework to detect various proteins, nucleic acids, or other biomarkers simultaneously
3Measurement precision
If conjugated polymers are used to amplify fluorescent output, then detection sensitivity is significantly improved, but the structural complexity of the reporter molecule increases
Solution Approach 1:
The patent transitions from small-molecule fluorescent reporters to polymeric reporters, adding a dimensional aspect to the fluorescent probe. The conjugated polymer chains provide extended pi-electron systems that amplify fluorescence signal through delocalization, achieving signal enhancement without proportionally increasing molecular 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
The use of these conjugated polymers significantly enhances the sensitivity of biological assays and allows for increased multiplexing capabilities, enabling the detection of multiple analytes in a single test.
Implementation Method 1
The light harvesting structures of these materials can be made water soluble and adapted to amplify the fluorescent output of various probe labels
Implementation Method 2
wherein upon such binding excitation of the conjugated polymer is capable of transferring energy to the signaling chromophore
Data Source
AI summary
Described herein are methods, compositions and articles of manufacture involving neutral conjugated polymers including methods for synthesis of neutral conjugated water-soluble polymers with linkers along the polymer main chain structure and terminal end capping units. Such polymers may serve in the fabrication of novel optoelectronic devices and in the development of highly efficient biosensors. The invention further relates to the application of these polymers in assay methods.