Integrated Microfluidic Chip for Single-Cell Culture and Screening
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Solution Overview
Problem
Current single-cell isolation methods are labor-intensive, time-consuming, and inefficient, making it difficult to integrate single-cell isolation, culture, screening, and export processes, particularly in monoclonal antibody screening and cell line development.
Innovation Solution
An integrated microfluidic chip with a base, inlet and outlet flow channels, common flow channels, and functional units including a single-cell introduction port, cell culturing-screening chamber, cell export chamber, and a drive element, which enables efficient single-cell culture, screening, and export by using thermal bubble printing technology to simplify operations and improve throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If single-cell isolation is performed by micro-needle aspiration, finite dilution, micro-well arrays, or microfluidic-based sorting methods, then single-cell isolation can be achieved, but the process becomes labor-intensive, time-consuming, and inefficient with difficult operation
Solution Approach 1:
The patent merges single-cell isolation, culture, screening, and export functions into an integrated microfluidic chip system. The chip combines microfluidic channels, culture chambers, and control mechanisms into a unified platform that automates the entire workflow, eliminating manual operations while maintaining single-cell isolation accuracy.
Solution Approach 2:
The microfluidic chip acts as an intermediary device between cell sample input and final cell export. It uses controlled fluid flow through microchannels to transport and manipulate single cells through various functional zones, replacing manual manipulation with automated fluid-driven transport.
2Reliability
If isolated single cells are cultured in well plates with manual potency and phenotype analysis, then cell culture and screening can be performed, but the process becomes labor-intensive and inefficient
Solution Approach 1:
The patent combines culture chambers and screening zones within the same integrated chip, allowing continuous processing of single cells through culture, phenotypic analysis, and selection without transferring between separate plates or devices. This integration dramatically improves throughput while maintaining screening reliability.
Solution Approach 2:
The microfluidic system enables continuous flow and processing of single cells through culture and screening stages without interruption or manual intervention. Cells move continuously through the chip's functional zones, eliminating idle time and manual handling steps that reduce productivity in traditional well plate methods.
3Reliability
If traditional single-cell research methods are used, then basic single-cell isolation and culture can be achieved, but the process is tedious and time-consuming without integration of isolation, culture, screening, and export
Solution Approach 1:
The integrated chip merges isolation, culture, screening, and export functions into a single device that processes cells continuously through all stages. This eliminates the need for separate manual operations and transfers between different vessels or devices, dramatically reducing total process time while maintaining research capability.
Solution Approach 2:
The chip performs preliminary actions by pre-configuring all necessary functional zones (isolation channels, culture chambers, screening areas, export pathways) within a single integrated platform before cell introduction. This eliminates setup time and allows immediate processing of cell samples through the complete workflow.
Data Source
AI summary
An integrated microfluidic chip and a single-cell culture, screening, and export method applying the same are disclosed; the chip includes a base, an inlet flow channel, an outlet flow channel, a plurality of common flow channels and a plurality of functional units, wherein two ends of the common flow channel are connected to the inlet flow channel and the outlet flow channel, respectively, wherein each of the functional units includes a single-cell introduction port, a cell culturing-screening chamber, a cell export chamber, a cell export port, and a drive element, wherein the drive element is used to provide power to liquid to introduce single cells entering the common flow channels into the cell culturing-screening chamber, and after culturing and screening, to export target cell population in the cell culturing-screening chamber through the cell export port.