AC Electric Field Modulation of ERK Signaling via Dielectric Microelectrodes
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Solution Overview
Problem
Current methods for modulating cell signaling pathways, particularly the ERK pathway, often require repeated chemical additions or genetic modifications, limiting their precision and applicability in controlling cell behaviors and treating diseases.
Innovation Solution
The use of alternating current (AC) electric fields (EFs) applied through high-k dielectric passivated microelectrodes to modulate ERK activation, allowing for precise control of frequency and amplitude without Faradaic processes or electroporation, enabling localized and synchronized ERK activation independent of ligand binding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If repeated chemical additions or genetic modifications are used to modulate cell signaling pathways, then the pathways can be activated, but the precision and applicability in controlling cell behaviors are limited
Solution Approach 1:
The patent replaces chemical and genetic manipulation methods with an electric field-based system. Microelectrodes generate localized AC electric fields that directly modulate cell signaling pathways, eliminating the need for repeated chemical additions or genetic modifications while achieving precise spatiotemporal control of cell behaviors
Solution Approach 2:
The patent utilizes controllable electric field parameters (frequency, amplitude, duration) to precisely modulate cell signaling pathways. By adjusting these parameters, the system achieves high precision in controlling cell behaviors without the complexity of chemical or genetic methods
2Manufacturing precision
If AC electric fields are applied through microelectrodes, then localized and synchronized ERK activation is achieved, but the system requires high-k dielectric passivation to prevent Faradaic processes
Solution Approach 1:
The patent introduces high-k dielectric passivation layers as an intermediary between the microelectrodes and the biological system. This passive insulation layer prevents unwanted Faradaic electrochemical reactions and electroporation while allowing the electric field to pass through and activate ERK signaling, thus enabling precise localized control without direct electrode-cell contact
3Measurement precision
If conventional methods are used to modulate cell signaling, then activation can be achieved, but temporal and spatial precision is limited
Solution Approach 1:
The patent employs alternating current (AC) electric fields with specific frequencies to periodically stimulate cell signaling pathways. This periodic action enables precise temporal control of ERK activation, allowing researchers to control the timing and duration of signaling events with high precision while maintaining ease of operation through electrical stimulation
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 provides a non-invasive, high-spatial-resolution method for controlling ERK activation dynamics, potentially treating diverse diseases by regulating intracellular signaling pathways with temporal and spatial precision.
Implementation Method 1
The use of alternating current (AC) electric fields (EFs) applied through high-k dielectric passivated microelectrodes to modulate ERK activation
Data Source
AI summary
A method for activating a cell-signaling pathway of interest in a cell, including applying a time-modulated localized alternating current electrical field to the cell, wherein the amplitude and frequency of the localized alternating current electrical field is selected to activate the cell signaling pathway of interest, thereby activating the cell signaling pathway.