Spring Element Conductivity Detection for Rapid Viral Antigen Analysis
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Solution Overview
Problem
Current point-of-care screening tests for SARS-CoV-2 virus infection are unreliable, costly, and time-consuming, leading to delayed diagnosis and ineffective epidemic control due to reliance on reverse transcriptase PCR methods and antibody detection, which are not suitable for real-time monitoring.
Innovation Solution
A miniaturized spring element with a conductivity detector zone and a binding zone, where nanoparticles embedded in a matrix determine electrical conductivity through tunneling or hopping processes, and binding molecules specific to viral antigens cause detectable changes in conductivity or bending, enabling PCR-independent virus detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reverse transcriptase PCR methods are used for virus detection, then detection reliability is improved, but analysis time and workload increase significantly
Solution Approach 1:
The patent replaces the complex mechanical and chemical PCR amplification process with a direct electrical detection system. The spring element with conductivity detector zone measures changes in electrical conductivity caused by virus-antigen binding, eliminating the need for thermal cycling, reagents, and specialized laboratory equipment while achieving rapid results within minutes.
Solution Approach 2:
The invention extracts and isolates the essential detection function from the complex PCR system. By using a spring element with binding molecules coupled to nanoparticles in a conductivity detector zone, the patent separates the detection step from the amplification step, enabling direct measurement of viral antigens without requiring the time-consuming PCR amplification process.
2Ease of operation
If antibody detection methods are used for point-of-care testing, then ease of operation is improved, but detection time is delayed as antibodies appear 7-10 days after infection
Solution Approach 1:
The spring element is pre-functionalized with binding molecules (such as antibodies or aptamers) that specifically bind to viral antigens. This preliminary preparation allows the device to directly detect and bind viral particles in the sample without requiring any additional amplification steps or waiting for the patient's immune system to produce detectable antibody levels.
3Device complexity
If miniaturized spring elements with nanoparticle conductivity detector zones are used, then device complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent utilizes changes in electrical conductivity parameters caused by the binding of viral antigens to binding molecules on the spring element. The conductivity detector zone, formed by nanoparticles embedded in a matrix, exhibits measurable changes in electrical conductivity when viruses bind, allowing detection through electrical measurements rather than complex optical or mechanical readout systems.
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
This solution allows for rapid, cost-effective, and reliable detection of viral antigens, providing immediate results and enabling real-time monitoring and control of virus spread, reducing uncertainty and treatment delays.
Implementation Method 1
the electrical conductivity of the conductivity detector zone is determined by electronic tunneling, ionization or hopping processes
Implementation Method 2
the electrical conductivity of the conductivity detector zone is determined by electronic tunneling, ionization or hopping processes
Implementation Method 3
the electrical conductivity of the conductivity detector zone is determined by electronic tunneling, ionization or hopping processes
Implementation Method 4
the binding zone comprises at least one binding molecule that binds specifically to the analyte and is coupled to the main body
Implementation Method 5
spring element for conversion of chemical and/or biochemical information from an analyte in a sample to an electrical signal
Data Source
AI summary
A spring element is provided for analysis of the presence of an analyte in a sample. The spring element includes a flexible main body having a conductivity detector zone and a binding zone. The conductivity of the conductivity detector zone is determined by electronic tunneling, ionization or hopping processes, and the conductivity detector zone is formed from nanoparticles embedded in a matrix that have higher electrical conductivity compared to the matrix material. Moreover, the binding zone includes at least one binding molecule that binds to the analyte and is coupled to the main body.