Cell-impedance sensors
First Claim
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1. A method of designing a cell-electrode impedance sensor, comprising:
- measuring a cell free cell-electrode impedance and a cell covered cell-electrode impedance based on a design model for the cell-electrode impedance sensor, wherein the design model is based on one or more factors, the factors including properties and elements of a cell-electrode impedance measurement system;
measuring a sensor sensitivity of the cell-electrode impedance measurement system based at least on the cell free cell-electrode impedance and the cell covered cell-electrode impedance;
computing, by a computer, one or more design values for one or more design parameters of the cell-electrode impedance sensor in the cell-electrode impedance measurement system to maximize the sensor sensitivity, andgenerating a cell-electrode impedance sensor design having at least some physical dimensions based on the computed one or more design values.
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Abstract
Methods and apparatus for designing and measuring a cell-electrode impedance sensor to detect chemical and biological samples, including biological cells. The method of designing a cell-electrode impedance sensor comprises: determining a cell free cell-electrode impedance and a cell-covered cell-electrode impedance; obtaining a sensor sensitivity of the cell-electrode impedance measurement system; and choosing one or more design parameters of the cell-electrode impedance sensor to maximize the sensor sensitivity. When the frequency of AC signal between electrodes ranges from 10 kHz to 40 kHz, the sensitivity of the sensor is maximized.
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Citations
19 Claims
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1. A method of designing a cell-electrode impedance sensor, comprising:
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measuring a cell free cell-electrode impedance and a cell covered cell-electrode impedance based on a design model for the cell-electrode impedance sensor, wherein the design model is based on one or more factors, the factors including properties and elements of a cell-electrode impedance measurement system; measuring a sensor sensitivity of the cell-electrode impedance measurement system based at least on the cell free cell-electrode impedance and the cell covered cell-electrode impedance; computing, by a computer, one or more design values for one or more design parameters of the cell-electrode impedance sensor in the cell-electrode impedance measurement system to maximize the sensor sensitivity, and generating a cell-electrode impedance sensor design having at least some physical dimensions based on the computed one or more design values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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