Droplet Reagent Concentration Control via Segmented Transfer
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Solution Overview
Problem
Existing methods face challenges in efficiently changing the concentration of reagents within droplets, which is crucial for controlling reaction rates and progress in droplet-based processing systems.
Innovation Solution
The method involves providing two droplet populations with different reagent concentrations and using conditions to transfer the reagent between them, thereby adjusting the concentrations and controlling the reaction dynamics within the droplets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the concentration of reagent in a droplet is changed, then the rate or progress of reaction within the droplet is affected, but the challenge remains in efficiently changing the reagent concentration
Solution Approach 1:
The system divides the droplet population into two separate populations: a first droplet population containing the reagent and a second droplet population containing the analyte carrier. This segmentation allows independent control and optimization of reagent concentration in each population, resolving the challenge of efficiently changing reagent concentration while maintaining reaction control.
Solution Approach 2:
The patent introduces a transfer mechanism that acts as an intermediary between the two droplet populations. This intermediary enables controlled transfer of reagent from the first population to the second population, facilitating efficient concentration adjustment without direct manipulation of individual droplets.
2Manufacturing precision
If reagent is transferred between droplet populations, then reagent concentration is controlled, but additional conditions and mechanisms are required
Solution Approach 1:
The patent merges the two droplet populations in a manner that enables controlled reagent transfer while maintaining the functional separation between reagent-containing droplets and analyte-containing droplets. This merging approach allows concentration control through population-level manipulation rather than individual droplet manipulation, reducing operational complexity.
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
This approach allows for precise control of reagent concentrations, enabling effective management of reaction rates and progress within droplets, which is essential for various biological and chemical processes.
Implementation Method 1
subjecting the first droplet population and the second droplet population to conditions sufficient to transfer the reagent between the first droplet population and the second droplet population
Data Source
AI summary
The present disclosure relates to methods, compositions and systems for droplet processing. For example, a method can include (a) partitioning a plurality of cells into a plurality of aqueous droplets, wherein an aqueous droplet of the plurality of aqueous droplets comprises a cell of the plurality of cells; and delivering a micellized lysis agent to the cell in the aqueous droplet.