Deformable Reservoir Transfection Device for High-Throughput Cargo Delivery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current transfection methods often damage cells and are inefficient for delivering large or multi-component cargo, particularly for generating induced pluripotent stem cells, due to the need for significant cellular membrane disruption and multiple manipulation steps.
Innovation Solution
A transfection device using a deformable fluid reservoir coupled with a microporous membrane to deliver macrostructures under pressure, facilitating active endocytosis and minimizing cell damage, allowing for high efficiency and low cell damage even with complex or multiple nucleic acids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If heat is used to assist transfection, then transfection efficiency is improved, but cell damage increases
Solution Approach 1:
The patent replaces thermal energy with mechanical energy (pressure) to achieve transfection. The deformable reservoir applies mechanical pressure to force cargo through the microporous membrane into cells, eliminating the need for heat-induced membrane disruption and associated cell damage.
Solution Approach 2:
The patent employs a microporous membrane as the delivery interface. The porous structure allows selective passage of cargo materials into cells under pressure while maintaining cell integrity, avoiding the need for extreme thermal or mechanical disruption required by conventional methods.
2Speed
If poration is used to deliver material, then delivery speed is improved, but the duration of effective transfection is reduced
Solution Approach 1:
The patent applies pressure in a controlled, sustained manner rather than as a single brief pulse. The deformable reservoir maintains pressure over an extended period, allowing continuous cargo delivery through the porous membrane while cells remain in a receptive state, thus extending effective transfection duration.
Solution Approach 2:
The patent enables continuous cargo delivery by maintaining sustained pressure across the porous membrane. Unlike transient poration methods that create brief openings, the continuous pressure application ensures steady-state delivery of cargo into cells throughout the transfection process.
3Quantity of substance
If shockwave is used to accelerate projectiles, then delivery of large molecules is improved, but cell damage increases
Solution Approach 1:
The patent replaces ballistic shockwave mechanics with controlled hydrostatic pressure. Instead of accelerating projectiles at high velocity that cause traumatic cell damage, the deformable reservoir applies gentle, uniform pressure to drive cargo through the porous membrane, achieving delivery without projectile-induced cell trauma.
Solution Approach 2:
The microporous membrane provides a controlled pathway for cargo entry. Large molecules and complexes can pass through the porous structure under pressure without requiring the extreme forces of shockwave acceleration, thereby delivering substantial cargo while preserving cell viability.
4Manufacturing precision
If multiple manipulation steps are used for transfection, then transfection precision is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single integrated device. The deformable reservoir simultaneously provides cargo storage, pressure generation, and controlled release mechanisms, eliminating the need for separate manipulation steps and reducing overall device complexity while maintaining transfection precision.
Solution Approach 2:
The deformable reservoir serves multiple functions: it stores cargo, generates pressure through deformation, controls delivery timing, and interfaces with the porous membrane. This multi-functionality consolidates what would otherwise require multiple separate components and steps, simplifying the overall device architecture.
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
The method achieves high transfection efficiency and low cell damage, enabling the generation of induced pluripotent stem cells with improved viability and throughput by using pressure to deliver macrostructures through a porous membrane, avoiding ballistic transfer and promoting active uptake.
Implementation Method 1
deliver macrostructures under pressure
Implementation Method 2
facilitating active endocytosis
Data Source
AI summary
Systems and methods for transfection devices are contemplated for delivery of various complex macrostructures. Preferred systems and methods are suitable for mRNA reprogramming and genome editing and use mechanical force to induce uptake of the macrostructures in a target cell. Contemplated devices are able to achieve high throughput of transfected cells in remarkably short time that remain viable and are capable of producing colonies.