Modular Electroporation Assembly for High-Throughput Automation
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Solution Overview
Problem
Current electroporation methods for bacterial genetic engineering are inefficient and labor-intensive, particularly when dealing with new or unknown bacterial species, as they require extensive manual pipetting and are prone to arcing issues, limiting high-throughput capabilities.
Innovation Solution
A modular electroporation assembly with reusable and interchangeable layer components that can be assembled and disassembled, compatible with liquid handling robots for automated pipetting, allowing for scalable and high-throughput electroporation with fluidically sealed flow paths and configurable electric fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cuvette-based batch-wise electroporation methods are used, then transformation efficiency can be achieved, but throughput is low and extensive manual pipetting is required
Solution Approach 1:
The device segments the electroporation process into multiple parallel flow cells (e.g., 96 channels), allowing simultaneous processing of multiple samples. Each flow cell is a separate unit that can be independently addressed by liquid handling robots, enabling high-throughput automated electroporation while maintaining the transformation efficiency of traditional cuvette methods.
Solution Approach 2:
The invention replaces manual mechanical pipetting with automated liquid handling robots that interface with the device's standardized ports. The fluidic connections and automated dispensing systems eliminate the need for manual pipette operation, enabling robots to perform liquid handling tasks with precision and consistency across all channels.
2Productivity
If multi-well electroporation systems are implemented to improve throughput, then processing capacity increases, but arcing events and malfunction rates increase
Solution Approach 1:
The device introduces intermediate fluidic channels and isolation structures between adjacent electroporation channels. These intermediates act as barriers that prevent electrical arcing from propagating between channels while allowing independent electroporation events. The design includes spaced electrode arrangements and insulating barriers that eliminate the continuous conductive path that causes arcing in traditional multi-well systems.
Solution Approach 2:
Each flow cell is designed with localized electroporation zones that are electrically isolated from neighboring zones. The electrode configurations are optimized for each individual channel, creating uniform electric fields within each cell while preventing field interference with adjacent cells. This local optimization ensures reliable operation across all channels simultaneously.
3Extent of automation
If automated liquid handling integration is achieved, then labor requirements decrease, but device complexity increases
Solution Approach 1:
The device employs standardized, universal interfaces that are compatible with multiple liquid handling robot platforms and protocols. The port configurations, fluid connection standards, and control interfaces are designed to work with commonly available robotic systems, allowing the device to perform multiple functions across different laboratory setups without requiring custom integration for each robot type.
Solution Approach 2:
The device uses replicated modular flow cell units that can be assembled in arrays. Each unit is an identical copy with standardized interfaces, allowing simple scaling from 8 to 96 channels by repeating the basic module. This modular copying approach maintains simplicity while enabling high throughput, as the same basic design is replicated rather than creating a complex custom configuration.
4Productivity
If flow-based electroporation is implemented instead of batch methods, then throughput increases, but fluidic sealing requirements become more stringent
Solution Approach 1:
The device incorporates flexible sealing membranes and thin film gaskets that conform to the flow cell interfaces. These flexible sealing elements create reliable fluidic barriers at the interfaces between flow cells and reservoirs, preventing leakage during automated liquid handling. The thin film design allows for tight sealing without adding significant structural complexity.
Solution Approach 2:
The device includes pre-assembled flow cell units with integrated sealing structures that are prepared beforehand. The fluidic pathways and sealing interfaces are pre-configured and tested to ensure integrity before integration into the full device array. This preliminary preparation ensures that sealing reliability is established before the high-throughput processing begins.
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
Enables efficient and automated high-throughput electroporation with uniform transformation efficiency across multiple channels, reducing processing time and minimizing cell damage, while being compatible with existing liquid handling systems and standard formats.
Implementation Method 1
The conductive layer components can be configured to produce an electric field within each of the electroporation flow paths
Implementation Method 2
define a plurality of input or output ports. The input ports can be configured to receive cell sample fluid from a manual pipette
Data Source
AI summary
An electroporation assembly for interfacing with a liquid handling system includes at least two electrically conductive layer components and a channel layer component. The channel layer component is configured to be removably disposed between the electrically conductive layer components. The electrically conductive layer components and the channel layer component define a plurality of parallel electroporation flow paths in an assembled state. An electroporation system includes an electroporation assembly and a cell collection unit. The electroporation assembly is configured to direct a flow of a cell sample to the cell collection unit.