A micro-device integrating vertical and bottom electrodes for 3D cell rotation

Type of content
Conference Contributions - Other
Publisher's DOI/URI
Thesis discipline
Degree name
Publisher
University of Canterbury. Electrical and Computer Engineering
University of Canterbury. Mechanical Engineering
Journal Title
Journal ISSN
Volume Title
Language
Date
2013
Authors
Benhal, P.
Chase, Geoff
Gaynor, P.
Oback, B.
Wang, W.
Abstract

We report a Lab-on-chip micro device for rotating a spherical object such as bovine cell in three dimensional (3D) spaces. Micro device consists of two pairs of orthogonal vertical wall electrode along with bottom transparent indium tin oxide (ITO) electrodes. Photolithography technique is employed to fabricate bottom part of the micro device. On the other hand micro milling is applied to fabricate the top electrodes of 500 μm height. The entire device is only 75X25 mm in length and width upon which particle rotation is achieved. Micro device works entirely on this dielectrophoresis (DEP) phenomenon to rotate the cell in 3D spaces. Rotating fields are optimized through simulation and results are presented along with analysis. The experiments are carried out to determine the cell rotation rate. Rotation of cell in 3D spaces has its unique advantages in automation of high throughput mammalian cloning procedures. Cloning procedures such as enucleation requires a cell to be rotated in 3D spaces for genetic material extraction. Enucleation also requires the cell to be precisely rotated and controlled. This precise rotation control is achieved by electrorotation through DEP.

Description
Citation
Benhal, P., Chase, J.G., Gaynor, P., Oback, B., Wang, W. (2013) A micro-device integrating vertical and bottom electrodes for 3D cell rotation. Auckland, New Zealand: 6th International Conference on Advanced Materials and Technology (AMN6), 11-15 Feb 2013. 1pp.
Keywords
DEP, electrorotation, micro-device, micro-milling
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Fields of Research::40 - Engineering::4003 - Biomedical engineering::400305 - Biomedical instrumentation
Fields of Research::40 - Engineering::4014 - Manufacturing engineering::401410 - Microtechnology
Fields of Research::40 - Engineering::4017 - Mechanical engineering::401705 - Microelectromechanical systems (MEMS)
Fields of Research::32 - Biomedical and clinical sciences::3208 - Medical physiology::320801 - Cell physiology
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