Micro-liquid transfer system, micro-liquid transfer method and application

By combining a conductive pipette tip and receiver with electrostatic inkjet printing technology based on voltage difference, the problems of uncontrollable liquid volume and complex structure in existing microarray printing technologies have been solved, achieving high-precision and high-efficiency micro-liquid transfer and supporting batch printing.

CN122321985APending Publication Date: 2026-07-03SUZHOU PUXIN LIFE SCI TECH CO LTD
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Patent Information

Application Number
CN202610634424.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-09
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing microarray printing technology suffers from problems such as uncontrollable liquid volume during printing, slow single-channel printing speed, complex sampling, limited minimum printing volume, complex structure, and inability to mass print.

Method used

Employing conductive pipette tips and receivers, electrostatic inkjet printing is achieved through voltage difference. Combined with a multi-well plate reservoir and drive assembly, it enables precise transfer of micro-volume liquids. Solid or slit needles are used for dipping and spraying, and environmental control components are provided to ensure accuracy and reliability.

Benefits of technology

It achieves 100pL level accuracy and stability in liquid pipetting, simplifies ink replacement, improves printing speed and reliability, supports batch printing, and has a simple structure and is easy to maintain.

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Abstract

The invention discloses a micro-liquid transfer system, a micro-liquid transfer method and application, and the micro-liquid transfer system comprises a liquid storage device which is used for storing liquid to be transferred; the pipetting head is made of a conductive material and is used for dipping and transferring the liquid in the liquid storage device; the receiver is made of a conductive material and is used for receiving the liquid transferred by the pipetting head; the power supply is electrically connected with the pipetting head and is used for electrifying the pipetting head to generate a voltage difference between the pipetting head and the receiver; the controller is electrically connected with the power supply and is used for controlling the pipetting head to be powered on or powered off; and the driving assembly is used for driving the pipetting head to move or driving at least two of the liquid storage device, the pipetting head and the receiver to move. The micro liquid transfer system can transfer micro liquid, and is simple, fast, efficient, and high in reliability and accuracy.
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