TY - JOUR
T1 - A Practical Micropipette-Image Calibration Method for Somatic Cell Microinjection
AU - PAN, Fei
AU - CHEN, Shuxun
AU - ZHENG, Liushuai
AU - ZHI, Shaohua
AU - CHEN, Xi
AU - SUN, Dong
N1 - Publisher Copyright:
© 2004-2012 IEEE.
PY - 2025/1/27
Y1 - 2025/1/27
N2 - 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%.
AB - 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%.
KW - Micropipette-image calibration
KW - robotic cell microinjection
KW - somatic cells
UR - http://www.scopus.com/inward/record.url?scp=85217131063&partnerID=8YFLogxK
U2 - 10.1109/TASE.2025.3533657
DO - 10.1109/TASE.2025.3533657
M3 - Journal Article (refereed)
SN - 1545-5955
JO - IEEE Transactions on Automation Science and Engineering
JF - IEEE Transactions on Automation Science and Engineering
ER -