Dual-Sided Co-Culture Membrane Assembly for Distinct Cell Microenvironments

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Solution Overview

Problem

Traditional cell culture systems are limited in their ability to co-culture multiple cell types that require distinct microenvironments, such as anaerobic bacteria and oxygenated environments, and often require extensive handling, increasing contamination and variability in experimental results.

Innovation Solution

A dual-sided multi-cell co-culture apparatus and method utilizing a membrane assembly mounted to two cylindrical culture tanks, allowing simultaneous cultivation of different cell types on both sides of a transparent porous membrane, with biopolymer grafting for tailored microenvironments and real-time TEER monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional single-layer cell culture systems are used, then the system is simple and easy to operate, but it cannot effectively co-culture multiple cell types requiring distinct microenvironments

Engineering Contradiction:

Improveability to co-culture multiple cell typesVSAvoidsystem structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The culture system is divided into multiple independent chambers separated by porous membranes, allowing different cell types to be cultured in distinct microenvironments while maintaining physical separation. Each chamber can be independently controlled for parameters such as oxygen levels, pH, and nutrient supply.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple culture chambers are nested within a single culture device, with each chamber containing a porous membrane that allows selective exchange of nutrients and waste products. This nested structure enables complex co-culture experiments within a single manageable unit.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Ease of operation

If extensive handling and manipulation of cultures is performed, then cell culture operations can be completed, but the risk of contamination and variability of experimental results increases

Engineering Contradiction:

Improvehandling requirementsVSAvoidcontamination risk

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

Culture conditions, including oxygen levels, pH, and nutrient composition, are pre-configured in each chamber before cell inoculation. This preliminary setup minimizes the need for subsequent manipulations and reduces the risk of contamination during critical culture phases.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Porous membranes act as intermediaries between different culture chambers, allowing selective exchange of nutrients, waste products, and signaling molecules while preventing direct cell contact and contamination. The membranes facilitate controlled interaction without requiring direct access to each chamber.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If traditional culture dishes or flasks are used, then the system is simple and inexpensive, but it cannot simulate complex biological environments

Engineering Contradiction:

Improvebiological environment simulationVSAvoidsystem fabrication

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The culture system incorporates porous membranes with specific pore sizes and surface properties tailored to different cell types. These composite structures combine the benefits of physical separation with selective permeability, enabling realistic simulation of in vivo microenvironments while maintaining manufacturability.

Inventive Principle:

Principle #40Composite materials

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 the simulation of complex biological environments for advanced tissue engineering and in vitro modeling, reducing contamination and variability while enhancing reproducibility and precision in experiments.

Implementation Method 1

a transparent porous membrane, with both sides being used for culturing cells

Methodology Applied

Scientific EffectPermeation: Permeation

Implementation Method 2

biopolymer grafting for tailored microenvironments

Methodology Applied

Scientific EffectAdsorption: Adsorption

Data Source

PatentUS20250382560A1Dual-sided multi-cell co-culture system and method of culturing cells

Publication Date: 2025.12.18 TAIPEI MEDICAL UNIV

AI summary

A dual-sided multi-cell co-culture system and a method of culturing cells are provided. A dual-sided multi-cell co-culture system includes a first culture tank, a second culture tank, a membrane assembly, a first culture plate and a second culture plate. The membrane assembly is configured to be removably mounted to the first culture tank and configured to be removably mounted to the first culture tank. The first culture plate has at least one well, wherein the at least one well of the first culture plate is configured to receive the first culture tank equipped with the membrane assembly. The second culture plate has at least one well, wherein the at least one well of the second culture plate is configured to receive the second culture tank equipped with the membrane assembly.