Tumor Microenvironment Screening Chip With Gas-Diffusion Membrane
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Solution Overview
Problem
Existing drug screening platforms fail to accurately simulate the tumor microenvironment, leading to imprecise testing results for cancer treatments.
Innovation Solution
A drug screening platform incorporating a tumor microenvironment simulating chip with a microenvironment building unit that generates gases and oxygen concentrations, a drug testing chip for drug-cell interaction, and a permeable thin film to diffuse these conditions, along with a heating apparatus to simulate a warm tumor environment, allowing multiple drug and cell types to interact accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional drug screening platform is used, then the device structure is simple, but the tumor microenvironment cannot be accurately simulated leading to imprecise testing results
Solution Approach 1:
The platform is divided into functionally independent modules: a tumor microenvironment simulation chip with microenvironment building units, a drug testing chip with testing units, and a permeable thin film separating them. This segmentation allows each module to perform its specific function (generating acid/alkaline gases, controlling oxygen concentration, testing drug effects) while maintaining overall system manageability and reducing the complexity burden of the integrated system.
Solution Approach 2:
A permeable thin film is introduced as an intermediary component between the tumor microenvironment simulation chip and the drug testing chip. This film allows selective diffusion of gases (acid gas, alkaline gas, oxygen) from the simulation chip to the testing chip, enabling accurate microenvironment replication without direct mixing of fluids or complex fluid handling systems, thus improving precision while maintaining structural simplicity.
2Productivity
If multiple drug and cell types are tested separately, then each test can be conducted accurately, but the testing time and productivity are reduced
Solution Approach 1:
The platform is designed with universal testing capabilities that can accommodate multiple drug types and cell types within the same system. The microenvironment building units can generate various gas compositions, and the testing units can handle different therapeutic drugs and cell-containing hydrogels simultaneously, allowing diverse testing scenarios without requiring separate dedicated systems for each test type.
Solution Approach 2:
Multiple testing functions are merged into a single integrated platform where different drug-cell interaction tests can be conducted simultaneously in parallel testing units. The shared microenvironment simulation system provides consistent tumor microenvironment conditions across all tests, enabling high-throughput screening while maintaining the accuracy of individual test results through standardized microenvironment control.
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 precise and efficient testing of multiple therapeutic drugs and cell types within a simulated tumor microenvironment, providing accurate and comprehensive testing results with a single test.
Implementation Method 1
The microenvironment building unit is used for conducting a chemical reaction to generate an acid gas, an alkaline gas and/or an oxygen concentration for simulating the tumor microenvironment
Implementation Method 2
The permeable thin film is used for diffusing the acid gas, the alkaline gas and/or the oxygen concentration generated by the microenvironment building unit to the testing unit
Data Source
AI summary
A drug screening platform for tumor microenvironment simulation includes a tumor microenvironment simulating chip, a drug testing chip, and a permeable thin film disposed between the tumor microenvironment simulating chip and the drug testing chip. The tumor microenvironment simulating chip includes a microenvironment building unit which is used for conducting a chemical reaction to generate an acid gas, an alkaline gas and/or an oxygen concentration for simulating the tumor microenvironment. The drug testing chip includes a testing unit which is used for allowing interaction of a therapeutic drug with a cell-containing hydrogel. An orthographic projection of the testing unit falls on the microenvironment building unit. The permeable thin film is used for diffusing the acid gas, the alkaline gas and/or the oxygen concentration generated by the microenvironment building unit to the testing unit.