Magnetic Nanoparticle Coronavirus Detection With Electrochemical Readout
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current PCR-based methods for detecting Coronavirus are time-consuming, expensive, and inefficient in detecting low concentrations of the virus, particularly in asymptomatic stages, posing a risk of mass infection due to high contagiousness.
Innovation Solution
A kit and method utilizing magnetic nanoparticles with attached primers and a three-electrode module for electrochemical signal measurement, reducing PCR cycles and enhancing sensitivity by amplifying and detecting Coronavirus through electrochemical signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional PCR technology is used to maintain high accuracy, then diagnostic accuracy is improved, but detection time increases and cost increases
Solution Approach 1:
The patent extracts the PCR amplification step from the detection system and replaces it with a hybridization-based detection method using magnetic nanoparticles. This removes the time-consuming amplification cycles while maintaining detection accuracy through specific primer-mRNA hybridization and electrochemical signal measurement.
Solution Approach 2:
The patent replaces the mechanical/thermal cycling process of PCR with an electrochemical detection system. Instead of using thermal denaturation and polymerase extension, the system uses magnetic field manipulation of nanoparticles and electrochemical signal transduction to achieve detection without prolonged processing time.
2Measurement precision
If conventional PCR technology is used to detect low concentration Coronavirus, then detection sensitivity is improved, but detection time increases
Solution Approach 1:
The patent changes the detection parameter from amplification cycle-dependent signal generation to direct hybridization signal measurement. By using electrochemical detection of primer-mRNA hybrids on magnetic nanoparticles, the system achieves high sensitivity for low concentration viruses without requiring multiple amplification cycles, reducing detection time to under 10 minutes.
3Measurement precision
If real-time PCR is used to achieve highest accuracy, then diagnostic accuracy is improved, but equipment cost increases
Solution Approach 1:
The patent employs disposable magnetic nanoparticles functionalized with primers as the detection element. These nanoparticles can be pre-prepared and stored, then used in simple electrochemical readers. This approach replaces expensive real-time PCR instruments with affordable electrochemical detection devices, significantly reducing equipment costs while maintaining diagnostic accuracy.
4Productivity
If PCR cycles are reduced to shorten detection time, then detection speed is improved, but detection accuracy worsens
Solution Approach 1:
The patent introduces magnetic nanoparticles as an intermediary carrier that binds primers and Coronavirus mRNA through hybridization. This intermediary system allows direct detection of viral genetic material without amplification, enabling rapid detection (under 10 minutes) while maintaining accuracy through the specific and sensitive electrochemical signal generated by the nanoparticle-mRNA complex.
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 significantly shortens detection time to less than 10 minutes, enhances sensitivity to detect low concentrations, and improves accuracy by reducing PCR cycles, suitable for rapid and accurate diagnosis of Coronavirus.
Implementation Method 1
the magnetic nanoparticles collected by the formation of the amplified product may detect the Coronavirus by amplifying an electrochemical signal by a repeated potential application
Implementation Method 2
the electrochemical signal may measure a change in current value by applying DC or AC power
Data Source
AI summary
Provided are a kit for detecting Coronavirus using magnetic nanoparticles and a method detecting Coronavirus using the same. The kit for detecting Coronavirus includes a reactor having an opening on one side and provided with a sample containing Coronavirus, at least one magnetic nanoparticle part provided in the reactor, a conductive substrate provided to cover the opening of the reactor, and a magnetic field applying part for applying a magnetic field to the reactor, in which the magnetic nanoparticle part includes a magnetic nanoparticle including a core portion made of iron oxide and a shell portion made of gold and provided to surround the core portion, and a primer attached to the shell portion of the magnetic nanoparticle.