Ion Kinetics Analysis Using Electrophoretic Force in Dielectric Probes
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Solution Overview
Problem
Current methods for measuring the quantitative concentration of mobile ions in liquids, such as HPLC, AAS, or ISFET, require expensive equipment and trained personnel, and are time-consuming, especially in healthcare for testing blood samples or modeling semiconductor devices.
Innovation Solution
An apparatus with an ion reservoir and a dielectric probe structure that applies an electrophoretic force to mobile ions, using a capacitor structure to generate an electric field and determine electric characteristics, allowing for efficient analysis of ion kinetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional methods such as HPLC, AAS, or ICP-MS are used to measure mobile ion concentration, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts and isolates the specific function of measuring mobile ion concentration from complex conventional apparatus. By using a simplified sensor structure with a sensing element in contact with the liquid sample, the measurement function is separated from the complex chromatographic or spectroscopic systems, achieving accurate measurement with reduced device complexity
Solution Approach 2:
The patent introduces an intermediary sensing element that mediates between the liquid sample and the measurement system. This sensing element, which may be a membrane or interface layer, enables the measurement of mobile ion concentration without requiring direct complex analysis equipment, thus resolving the contradiction between precision and complexity
2Measurement precision
If conventional methods such as HPLC or AAS are used for ion analysis, then measurement precision is improved, but measurement time increases
Solution Approach 1:
The patent applies preliminary action by pre-contacting the sensing element with the liquid sample to allow mobile ions to accumulate or establish equilibrium at the sensing interface before measurement. This preliminary interaction enables rapid subsequent measurement without requiring time-consuming conventional analysis procedures, thus reducing measurement time while maintaining precision
Solution Approach 2:
The patent skips the time-consuming steps of conventional methods such as sample preparation, chromatographic separation, or spectroscopic calibration. By using a direct sensing mechanism where the sensing element responds immediately to mobile ion concentration, the measurement process is rushed through in a matter of seconds while preserving measurement precision
3Measurement precision
If conventional methods such as HPLC or ICP-MS are used for mobile ion measurement, then measurement precision is improved, but cost increases
Solution Approach 1:
The patent employs a sensing element that can be manufactured at low cost, potentially as a disposable or single-use component. This sensing element, which may be a simple membrane or coated substrate, provides accurate mobile ion concentration measurement without requiring expensive conventional equipment, thus resolving the contradiction between precision and manufacturing cost
Solution Approach 2:
The patent uses a simplified sensing mechanism that copies or replicates the measurement function of complex conventional apparatus. Instead of using expensive HPLC or ICP-MS systems, the invention creates a simplified copy that performs the essential measurement function at much lower cost while maintaining adequate precision for the application
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 enables rapid and cost-effective measurement of ion concentrations, improving the analysis of ion kinetics in dielectric probe structures, suitable for healthcare and semiconductor applications.
Implementation Method 1
a capacitor structure configured to generate an electric field in the dielectric probe structure along a vertical direction
Implementation Method 2
an electrode structure configured to generate an electrophoretic force on mobile ions in the dielectric probe structure along a lateral direction
Data Source
AI summary
An apparatus for analyzing ion kinetics in a dielectric probe structure includes an ion reservoir abutting the dielectric probe structure and configured to supply mobile ions to the dielectric probe structure, a capacitor structure configured to generate an electric field in the dielectric probe structure along a vertical direction, and an electrode structure configured to generate an electrophoretic force on mobile ions in the dielectric probe structure along a lateral direction. A method for analyzing ion kinetics in the dielectric probe structure of the apparatus is also provided.