Microfluidic Compartmentalization for High-Throughput Compound Screening
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Solution Overview
Problem
Current high-throughput screening methods are inadequate for efficiently creating and screening vast numbers of compounds to map the structure-activity space for potential therapeutic targets, given the large number of individual genes in the human genome and unique chemical structures.
Innovation Solution
The use of microfluidic control of microcapsules to compartmentalize primary compounds, allowing for chemical reactions to form secondary compounds that can bind to or modulate targets, with microfluidic control enabling efficient creation and identification of compounds within microcapsules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional high-throughput screening methods are used, then screening capacity is limited to hundreds or thousands of compounds per day, but the number of compounds that need to be screened to map structure-activity space is vast (≥10^10)
Solution Approach 1:
The system segments the vast compound library into microcapsule-based compartments, each containing individual compounds or small groups. This segmentation enables parallel processing of millions of compounds simultaneously, dramatically increasing throughput from thousands to potentially billions of compounds per day.
Solution Approach 2:
The invention transitions from two-dimensional plate-based screening to three-dimensional microcapsule suspensions that can be manipulated by microfluidic devices. This dimensional change enables massively parallel processing and integration with high-speed imaging and sorting systems.
2Productivity
If microfluidic control of microcapsules is implemented, then screening throughput and compound creation efficiency are dramatically increased, but device complexity and system integration requirements increase significantly
Solution Approach 1:
The microfluidic device is designed with multi-functionality, integrating compound synthesis, microcapsule manipulation, screening, and data collection into a single platform. This universal approach consolidates multiple separate systems into one coordinated device, managing complexity through integration rather than proliferation of separate components.
Solution Approach 2:
The system incorporates automated feedback loops where screening results directly inform subsequent synthesis and sorting decisions. The microfluidic device self-regulates by using real-time data to control reagent delivery, microcapsule manipulation, and compound generation, reducing the need for external intervention and simplifying operational complexity.
3Quantity of substance
If vast numbers of compounds are synthesized and screened in parallel, then the ability to map structure-activity space is greatly enhanced, but the cost and resource requirements increase substantially
Solution Approach 1:
The system uses microfluidic hydraulic control to deliver precise femtoliter-to-picoliter volumes of reagents to individual microcapsules. This hydraulic precision dramatically reduces reagent consumption compared to conventional well-based methods, enabling screening of vast compound numbers with minimal material input.
Solution Approach 2:
The invention changes the volume parameter from microliter-scale well plates to nanoliter/picoliter-scale microcapsules. This parameter change reduces reagent consumption by several orders of magnitude while increasing the number of compounds that can be screened in parallel, effectively decoupling quantity screened from resource consumption.
Data Source
AI summary
The invention describes a method for the synthesis of compounds comprising the steps of: (a) compartmentalizing two or more sets of primary compounds into microcapsules; such that a proportion of the microcapsules contains two or more compounds; and (b) forming secondary compounds in the microcapsules by chemical reactions between primary compounds from different sets; wherein one or both of steps (a) and (b) is performed under microfluidic control; preferably electronic microfluidic control The invention further allows for the identification of compounds which bind to a target component of a biochemical system or modulate the activity of the target, and which is co-compartmentalized into the microcapsules.