Non-Coding Biosensor Electrode Area Calibration
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Solution Overview
Problem
Existing electrochemical biosensors require a coding process to calibrate for variations in mixture solution characteristics, which is inconvenient for users and increases manufacturing costs and time.
Innovation Solution
A non-coding type biosensor that adjusts the area of the working electrode during manufacturing based on mixture solution characteristics, eliminating the need for a separate coding step by using existing electrodes and controlling their connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a coding process is implemented to calibrate for variations in mixture solution characteristics, then measurement precision is improved, but device complexity and ease of operation deteriorate due to additional coding steps and user input requirements
Solution Approach 1:
The biosensor automatically performs calibration by utilizing its own electrode area characteristics. The system self-determines the electrode area and selects corresponding calibration parameters without requiring external coding components or user input, making the device self-calibrating and eliminating the need for separate coding operations
Solution Approach 2:
The working electrode serves multiple functions: it acts as both the sensing element for detecting target materials and the calibration reference. By using the electrode area itself as the calibration basis, the system eliminates the need for separate coding components, achieving multi-functionality that improves ease of operation while maintaining measurement precision
2Measurement precision
If a coding process is implemented to calibrate for variations in mixture solution characteristics, then measurement precision is improved, but manufacturing cost and time increase due to additional coding components and processes
Solution Approach 1:
The invention extracts the calibration function from separate coding components (code chips, color chips, resistance elements) and integrates it directly into the working electrode structure. By taking out the calibration requirement from external components and embedding it in the electrode itself, the system eliminates additional manufacturing steps and components while maintaining calibration accuracy
Solution Approach 2:
The calibration function is merged with the working electrode by using the electrode area as the calibration reference. This combining of the sensing function and calibration reference into a single component eliminates the need for separate coding components and their associated manufacturing processes, reducing manufacturing complexity and cost
3Ease of manufacture
If the area of the working electrode is adjusted during manufacturing based on mixture solution characteristics, then ease of manufacture is improved by eliminating coding steps, but manufacturing precision requirements increase
Solution Approach 1:
The invention changes the physical parameter of the working electrode (its area) to encode calibration information. By controlling the electrode area within specific ranges during manufacturing, the system embeds calibration data directly in the hardware, eliminating the need for separate coding steps while using area parameter variation as the calibration mechanism
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 approach reduces manufacturing costs and time, provides calibrated results without additional user input, and ensures accurate monitoring data without a separate coding process.
Implementation Method 1
An electrochemical biosensor may detect an electrochemical signal (for example, an intensity of a current) through an electrode when a target material (for example, blood) and a mixture solution (for example, a mixture solution of an enzyme and a polymer) react with each other
Data Source
AI summary
Provided is a non-coding type biosensor. The non-coding type biosensor includes a first electrode including a first sub-electrode and a plurality of second sub-electrodes that are spaced apart from the first sub-electrode, ends of at least some of the plurality of second sub-electrodes being connected to the first sub-electrode, a reaction chamber in which a target material and a mixture solution react with each other, the reaction chamber contacting opposite ends of the plurality of second sub-electrodes, and a second electrode of which one end contacts the reaction chamber.