Dual-head magnetic liquid handler for antibody purification throughput
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Solution Overview
Problem
Current systems for plate-based antibody purification are inefficient, unable to provide high throughput, and require long cycle times, limiting their ability to meet the needs of scientists screening therapeutic antibodies.
Innovation Solution
A dual-head magnetic liquid handler system capable of accommodating high-volume, large-array plates for efficient antibody purification, featuring a cascade, positive pressure plate filtration system and an integrated liquid handler and positive pressure manifold for rapid and automated processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bench/laboratory style equipment is used for antibody purification, then the system can operate with simple structure, but the throughput is low and cycle time is long
Solution Approach 1:
The system is divided into two independent liquid handler heads (first head and second head) that operate simultaneously but independently. Each head has its own pipettes and can perform different operations (e.g., one head for loading samples, another for washing), allowing parallel processing without requiring complex coordination mechanisms. This segmentation enables high throughput while maintaining manageable system complexity.
Solution Approach 2:
The patent combines multiple purification functions into a single integrated system. The dual-head liquid handler merges sample processing, washing, and elution operations into one coordinated system. Additionally, the magnetic plate separator integrates magnetic bead capture and liquid handling in a single device, eliminating the need for separate equipment for each step and thereby increasing throughput without proportionally increasing overall system complexity.
2Loss of time
If traditional purification systems are used, then the system structure is simple, but the cycle time is too long (one to one-and-a-half hours)
Solution Approach 1:
The dual-head liquid handler enables continuous operation where one head can be loading new samples while the other head is processing or washing previous samples. This eliminates idle time between operations and maintains continuous useful action throughout the purification cycle. The system coordinates the two heads to ensure that washing, elution, and sample loading operations overlap in time, dramatically reducing the overall cycle time from hours to minutes.
Solution Approach 2:
The system performs preliminary actions by pre-positioning pipettes and pre-loading reagents before the actual purification cycle begins. The liquid handler heads are configured with multiple pipettes ready for different operations, and the system can pre-wash magnetic beads or prepare elution buffers in advance. This preliminary preparation eliminates setup time during the purification cycle and allows the system to maintain high speed throughout the process.
3Productivity
If automated systems are implemented, then productivity increases, but the device complexity and cost increase
Solution Approach 1:
The dual-head liquid handler is designed with universal functionality to perform multiple purification operations using the same basic mechanism. Both heads can perform aspirating, dispensing, washing, and elution operations. The system can process different plate formats (96-well, 24-well) and different antibody types with the same hardware configuration, reducing the need for specialized components and simplifying the overall automation architecture while maintaining high productivity.
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 achieves high-throughput antibody purification with cycle times as short as five minutes, yielding 10 to 20 times more purified antibodies than existing systems, while being fully automated and cost-effective.
Implementation Method 1
a dual-head magnetic liquid handler capable of accommodating high volume, large array, strongly magnetized plates for securing and transporting pipettes through the purification process
Implementation Method 2
a cascade, positive pressure plate filtration system for aggregate clearance from each individual pipette
Data Source
AI summary
An apparatus, system, process, and method for purifying, handling and otherwise processing engineered biologics molecules which may comprise plate-based antibody purification processes is disclosed. The resultant purified molecules may be further processed optimized, and/or used in other manufacturing processes and/or manufactured products. In one embodiment the system and method employed for the processing and purifying of antibodies comprises a high speed, high throughput, dual-head magnetic liquid handler robot and related systems which efficiently produces end product at high yields. In certain embodiments, the system is fully automated providing for cost-effective and efficient means for purifying, handling and otherwise processing engineered biologics molecules such as the purification of plate-based antibodies in commercially advantageous quantities. The resultant purified molecules may be further processed optimized, and/or used in other manufacturing processes and/or manufactured products. Also disclosed is an embodiment of the invention which utilizes a magnetic liquid handler robot and related systems comprising a single robotic arm which automatically interchanges tooling heads and which efficiently produces end product at high yields.