Microfluidic Connection Plate for High-Throughput Cell Culture
Solution Overview
Problem
Current microfluidic systems for complex cell cultures are not suitable for high-throughput studies and drug screening, requiring complex and expensive setups, and lack efficient handling and storage solutions for long-term use.
Innovation Solution
A microfluidic system with a hierarchical structure, including a connection plate and sample chip, allows for detachable connections for media and signal exchange, featuring functional elements like sensors and pumps for controlled perfusion and electrical measurements, enabling the assembly and cultivation of complex cell arrangements like liver and intestinal tissues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If microfluidic systems are used for complex cell cultures, then cell culture functionality is achieved, but device complexity and cost increase
Solution Approach 1:
The system is divided into separate functional modules: a reusable connection plate with integrated functional elements (sensors, pumps, electrodes) and disposable sample chips containing cell culture wells. This segmentation allows the complex functionality to be distributed across modular components, reducing overall system complexity while maintaining adaptability for different cell culture applications.
Solution Approach 2:
The connection plate is designed as a universal platform that can interface with multiple types of sample chips and support various cell culture configurations. Integrated functional elements such as sensors, pumps, and electrodes provide multi-functionality, enabling the same base unit to serve different experimental needs without requiring separate specialized equipment.
2Adaptability or versatility
If microfluidic systems are used for complex cell cultures, then cell culture functionality is achieved, but manufacturing cost increases
Solution Approach 1:
By separating the expensive reusable connection plate from the inexpensive disposable sample chips, the system allows high-cost functional elements to be manufactured once and reused. The disposable chips can be produced using cost-effective methods like mold injection, significantly reducing per-experiment manufacturing costs while maintaining full functionality.
Solution Approach 2:
The sample chips are designed as disposable, low-cost components that can be mass-produced using injection molding or similar techniques. This eliminates the need for expensive customization and cleaning procedures, reducing manufacturing costs while maintaining adaptability through standardized interfaces on the reusable connection plate.
3Ease of operation
If detachable connections are implemented for media and signal exchange, then handling efficiency is improved, but connection reliability may decrease
Solution Approach 1:
The functional elements (sensors, pumps, electrodes) are extracted from the sample chip and integrated into the connection plate. This allows the sample chip to be easily detached and replaced for high-throughput handling, while the connection plate maintains reliable, permanent connections to the control unit, thus preserving both handling efficiency and connection reliability.
Solution Approach 2:
The connection plate serves as an intermediary component between the disposable sample chips and the control unit. It provides stable, reliable connections to the control unit while enabling easy exchange of sample chips, thus mediating between the conflicting requirements of handling efficiency and connection reliability.
Data Source
Figure 1~2
Figure 3
Figure 4a
AI summary
A system (10) for carrying out examinations on and/or with biological sample material situated in a sample arrangement region (31) of a microfluidic sample chip (14) comprises a connector plate (12) for receiving the sample chip (14) and a control unit (11) which can be connected to the connector plate (12) in a fluidically and electrically disconnectable manner.