Automated Single-Cell Processing With Gantry-Based Reagent Handling
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Solution Overview
Problem
Existing single cell capture and processing systems lack automation, leading to time-consuming and error-prone manual processes that can damage cells or result in unfavorable outcomes, limiting their use by novice users in applications such as translational medicine and clinical diagnostics.
Innovation Solution
An automated system and method for single cell capture and processing, incorporating a deck, gantry, and reagent cartridges with dedicated regions for temperature control, magnetic separation, and fluid handling, enabling partial or full automation of protocols, reducing human intervention, and ensuring precise reagent addition and temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual single cell capture and processing is performed, then flexibility in handling cells is maintained, but the process becomes time-consuming and error-prone with high risk of cell damage
Solution Approach 1:
The system enables self-service automation where the automated liquid handling system performs pipetting, reagent addition, and sample processing without manual intervention. The system automatically tracks samples through the workflow, manages reagent dispensing, and executes processing steps according to predefined protocols, eliminating manual operations while maintaining processing reliability.
Solution Approach 2:
Manual mechanical pipetting and liquid handling operations are replaced with an automated liquid handling system that uses computer-controlled pumps and dispensing mechanisms. This substitution eliminates human error in pipetting, ensures precise reagent addition, and accelerates the overall processing time while maintaining or improving processing reliability.
2Manufacturing precision
If manual protocols are used for single cell processing, then user flexibility is maintained, but accuracy and precision of reagent addition deteriorates due to human error
Solution Approach 1:
Manual pipetting operations are replaced with computer-controlled automated liquid handling mechanisms that provide precise volumetric dispensing. The system uses computer-controlled pumps and syringe-based dispensing to achieve accurate reagent addition with consistent precision, eliminating variability introduced by manual operations.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor reagent consumption, track sample status, and verify processing steps. The automated system receives feedback from sensors and software tracking to ensure accurate reagent addition and can adjust dispensing parameters in real-time to maintain precision throughout the workflow.
3Productivity
If automated liquid handling is implemented, then throughput and consistency are improved, but the initial system complexity increases
Solution Approach 1:
The automated liquid handling system is designed as a universal platform that can perform multiple functions including pipetting, multi-reagent dispensing, sample tracking, and workflow management. This multi-functionality consolidates what would otherwise require multiple separate devices into a single integrated system, improving throughput while managing complexity through consolidation.
Solution Approach 2:
The system introduces an intermediary software layer that mediates between the automated hardware components and the user. This software interface simplifies operation by providing high-level control through predefined workflows and protocols, while managing the underlying hardware complexity automatically. The intermediary layer translates user commands into precise automated actions without requiring users to understand system complexity.
4Productivity
If high throughput single cell cytometry assays are performed manually, then novice users can operate the system, but throughput is limited and processing accuracy deteriorates
Solution Approach 1:
The system provides self-service automation that handles complex processing steps automatically without requiring user expertise. The automated liquid handling system performs precise pipetting and reagent addition autonomously, while the software automatically tracks samples and manages workflows. This self-service capability enables novice users to achieve high throughput and accurate results without needing manual dexterity or extensive training.
Solution Approach 2:
The system incorporates feedback mechanisms that guide novice users through the process automatically. The software provides real-time feedback on sample status, reagent consumption, and processing progress, automatically adjusting parameters and alerting users to potential issues. This feedback system compensates for lack of user expertise by automatically maintaining optimal processing conditions and ensuring high throughput and accuracy.
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
The system enhances accuracy, reduces errors, and streamlines the processing of single cells, allowing standard users to perform high-throughput assays with improved consistency and efficiency, generating purified libraries within a day.
Implementation Method 1
a heating subsystem configured to heat desired regions of the reagent cartridge and/or the sample processing cartridge
Implementation Method 2
a magnetic separation subsystem configured to separate materials based on magnetic properties
Data Source
AI summary
A system and method for automated single cell capture and processing is described, where the system includes a deck supporting and positioning a set of sample processing elements; a gantry for actuating tools for interactions with the set of sample processing elements supported by the deck; and a base supporting various processing subsystems and a control subsystems in communication with the processing subsystems. The system can automatically execute workflows associated with single cell processing, including mRNA capture, cDNA synthesis, protein-associated assays, and library preparation, for next generation sequencing.