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Abstract
This paper proposes a practical micropipette-image (2-D pixel and 3-D spatial coordination) calibration method indispensable to somatic cell microinjection, leveraging advancements in modern motorized micromanipulators. The method determines the depth information of the micropipette in the microscope field by assessing the contact between the micropipette tip and the bottom of the culture dish. It uses recoverable deformation upon contact as a criterion for precise positioning, ensuring the tip is on the dish's bottom surface and in the microscope's focus plane. Additionally, the paper introduces an on-the-spot method for breaking a micropipette tip and a preprocessing technique for somatic cells. The proposed micropipette tip-breaking method, using a low-cost acrylic ring, overcomes previous drawbacks and proves quick and user-friendly. The preprocessing technique converts fully adherent somatic cells into semi-adherent cells, increasing cell thickness for easier puncturing. Combining these techniques, the study validated the approaches through over 900 injections on human dermal fibroblast (HDF) cells, achieving a success rate of 53.3% and a survival rate of 95.8%. © 2004-2012 IEEE.
Original language | English |
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Number of pages | 13 |
Journal | IEEE Transactions on Automation Science and Engineering |
Online published | 27 Jan 2025 |
DOIs | |
Publication status | Online published - 27 Jan 2025 |
Funding
This work was supported in part by the Research Grants Council of Hong Kong under Grant 11209917 and in part by the InnoHK Project on Project 2.6 - “Magneto/optical steered vascular microrobotic system for image-guided CVD intervention” at the Hong Kong Centre for Cerebro-cardiovascular Health Engineering (COCHE)
Research Keywords
- Micropipette-image calibration
- robotic cell microinjection
- somatic cells
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Dive into the research topics of 'A Practical Micropipette-Image Calibration Method for Somatic Cell Microinjection'. Together they form a unique fingerprint.Projects
- 1 Finished
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GRF: Robotic Cell Injection Surgery System for the Safe and Specific Genetic Modification in Single Cells
SUN, D. (Principal Investigator / Project Coordinator) & LIAN, Q. (Co-Investigator)
1/01/18 → 27/05/22
Project: Research