Conjugated Polymer Reagents for Multiplex Biomarker Signal Amplification
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Solution Overview
Problem
Current methods for amplifying signal enhancement in protein recognition assays, such as immunohistochemistry and flow cytometry, are lacking, and there is a need for improved methods to enhance detection sensitivity and enable multiplexing.
Innovation Solution
Development of water-soluble conjugated polymers with specific functional groups and linkers for conjugation to biomolecules, allowing for enhanced signal amplification and multiplexing through tunable fluorescent output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional fluorescent reporters (dyes) are used in protein recognition assays, then the assay can be performed with simple methodology, but the detection sensitivity is limited and signal intensity is insufficient
Solution Approach 1:
The patent merges conjugated polymer materials with fluorescent dyes to create a hybrid probe system. The conjugated polymer serves as a signal amplification platform that enhances the fluorescent signal from the dye, achieving both high detection sensitivity and maintained methodological simplicity through the synergistic combination of two materials with complementary properties
Solution Approach 2:
The invention uses composite materials consisting of conjugated polymers combined with fluorescent dyes. This composite structure allows the conjugated polymer to provide signal amplification while the dye provides the fluorescent signal, creating a material system that overcomes the limitations of conventional single-material fluorescent reporters
2Adaptability or versatility
If multiple fluorescent reporters with different wavelengths are used for multiplexing, then multiple analytes can be detected simultaneously, but the complexity of the assay system increases
Solution Approach 1:
The conjugated polymer platform provides multi-functionality by enabling simultaneous detection of multiple analytes through wavelength-tunable fluorescent output. A single conjugated polymer-based assay system can detect multiple targets by adjusting the excitation wavelength or using different conjugated polymer variants, reducing the need for multiple separate assay systems
3Measurement precision
If conjugated polymers are used to amplify signal, then detection sensitivity is significantly improved, but the complexity of the conjugation process and material preparation increases
Solution Approach 1:
The patent employs linkers as intermediary molecules that facilitate the conjugation between conjugated polymers and fluorescent dyes or biomolecules. These linkers simplify the conjugation process by providing reactive groups that enable stable bonding, reducing the complexity of material preparation while maintaining the signal amplification capability
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 conjugated polymers provide a significant boost in detection sensitivity and enable multiplexing in protein recognition assays, achieving higher signal intensity and the ability to detect multiple analytes simultaneously.
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
The signals generated by the appended fluorescent labels (or dyes) can be monitored in real time
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.