Electrode with Patterned Insulating Layer for Oxygen Sensing
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Solution Overview
Problem
Conventional electrochemical measurement devices for biological specimens, such as fertilized ova, require multiple extraction wires due to the need for multiple working electrodes, which complicates the measurement process and increases noise, affecting the accuracy of respiratory activity measurements.
Innovation Solution
An electrochemical measurement device with a base, a specimen placement portion, and a first electrode surrounded by an insulating layer with multiple equidistantly positioned exposed portions, reducing the need for separate extraction wires and minimizing noise by controlling the electrode area and spacing to enhance measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple working electrodes are disposed around the specimen to measure average activity, then measurement precision is improved, but device complexity increases due to increased number of extraction wires
Solution Approach 1:
Multiple working electrodes are electrically connected and merged into a single electrode structure. The insulating layer is patterned to expose multiple electrode regions that function as a unified sensing element, allowing simultaneous measurement at multiple locations around the specimen without requiring separate extraction wires for each electrode.
Solution Approach 2:
A single electrode structure serves multiple measurement functions by providing multiple exposed portions that can detect oxygen concentration at different locations around the specimen. This multi-functional design eliminates the need for multiple separate electrode systems and their corresponding extraction wires.
2Measurement precision
If multiple working electrodes are used to account for directional bias in respiratory activity, then measurement precision is improved, but ease of operation deteriorates due to increased complexity of wire management
Solution Approach 1:
Multiple electrode functions are combined into a single integrated structure with patterned insulating layers. This merging reduces the number of extraction wires from multiple separate wires to a single wire connection, significantly simplifying operational procedures and wire management while maintaining multi-point measurement capability.
3Adaptability or versatility
If multiple extraction wires are provided for multiple working electrodes, then measurement capability is improved, but noise increases affecting accuracy
Solution Approach 1:
Multiple electrode signals are merged through electrical connection within the single electrode structure. By combining multiple measurement points into one integrated electrode system with a single extraction wire, the patent reduces the number of potential noise sources and interference pathways while maintaining comprehensive measurement capability around the specimen.
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 configuration allows for accurate measurement of physicochemical changes in oxygen concentration around biological specimens with a reduced number of extraction wires, improving operational efficiency and reducing measurement noise, thereby enhancing the accuracy of respiratory activity assessments.
Implementation Method 1
electrochemical measurement of the oxygen concentration in the vicinity of the fertilized ovum is performed using a working electrode
Data Source
AI summary
An electrochemical measurement device includes: a base; a specimen placement portion disposed on the base, for placing a biological specimen; a first electrode disposed on the base and surrounding the specimen placement portion; and a first insulating layer covering the first electrode. The first insulating layer has a plurality of openings, and the first electrode has a plurality of first electrode exposed portions which are portions of the first electrode that are exposed from the openings of the first insulating layer.