Doped Conducting Polymer for Non-Destructive CTC Capture
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Solution Overview
Problem
Current methods for detecting and isolating circulating tumor cells (CTCs) from biological samples are inefficient and destructive, making it difficult to diagnose and treat cancer effectively, as they are sensitive and require highly sensitive detection techniques.
Innovation Solution
A doped composition of conducting polymers, such as polypyrrole, with biotin or antibodies like anti-EpCAM, is used to capture and isolate CTCs non-destructively using electrical stimuli, allowing for efficient detection and collection of biomaterials, including CTCs, without damaging the cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional methods are used to detect and isolate circulating tumor cells, then detection can be performed, but the cells are damaged and isolation efficiency is low
Solution Approach 1:
The patent changes the physical-chemical parameters of the polymer by controlling doping levels and oxidation states. By adjusting the doping concentration and oxidation level of the conducting polymer, the capture strength and selectivity are optimized to achieve high isolation efficiency while maintaining cell integrity through reversible binding interactions
Solution Approach 2:
The patent employs composite material structure combining conducting polymer with specific functional groups and doping agents. This composite approach creates a material that simultaneously provides electrical conductivity for detection, chemical functionality for specific cell binding, and controlled release capabilities, resolving the contradiction between efficient isolation and cell preservation
2Measurement precision
If high sensitivity detection is implemented for circulating tumor cells, then detection accuracy improves, but the complexity of the detection system increases
Solution Approach 1:
The patent replaces complex mechanical isolation systems with an electrical field-based detection and isolation mechanism using conducting polymers. The electrical stimuli control the polymer's conformational changes and binding affinity, enabling high-sensitivity detection and isolation through simple electrical signals rather than complex mechanical operations
Solution Approach 2:
The conducting polymer serves multiple functions simultaneously: it acts as a sensing element for electrical detection, a binding agent for cell capture, and a controlled release mechanism through electrical stimulation. This multi-functionality achieves high detection sensitivity while minimizing system complexity by consolidating multiple functions into a single material platform
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 method enables the efficient capture and non-destructive release of CTCs, enhancing the sensitivity and accuracy of cancer diagnosis and treatment by allowing for real-time monitoring and personalized treatment approaches.
Implementation Method 1
doped composition consists of a dopant and a conducting polymer... capture and isolate CTCs non-destructively
Implementation Method 2
detecting, capturing, releasing, and collecting cell... using electrical stimuli, allowing for efficient detection and collection of biomaterials
Data Source
AI summary
The present invention relates to a composition in which a conducting polymer is doped with a dopant, and a diagnostic apparatus, and more particularly, to a composition which is used to diagnose a disease and detect a biomaterial and also used for qualification and diagnosis by effectively and non-destructively collecting a captured biomaterial. Further, the composition can maximize capturing efficiency by being attached to a surface of a nano-structured scaffold and can be used as an ultrahigh-sensitive sensor using various linked bodies.