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题名: Self-Rotation of Cells in an Irrotational AC E-Field in an Opto-Electrokinetics Chip
作者: Chau, LH ; Liang WF(梁文峰) ; Cheung, FWK ; Liu, WK ; Li WR(李文荣) ; Chen, SC ; Lee, GB
作者部门: 机器人学研究室
关键词: ELECTRIC-FIELD ; DIELECTROPHORESIS ; MANIPULATION ; SEPARATION
刊名: PLOS ONE
ISSN号: 1932-6203
出版日期: 2013
卷号: 8, 期号:1, 页码:1-8
收录类别: SCI
产权排序: 2
摘要: The use of optical dielectrophoresis (ODEP) to manipulate microparticles and biological cells has become increasingly popular due to its tremendous flexibility in providing reconfigurable electrode patterns and flow channels. ODEP enables the parallel and free manipulation of small particles on a photoconductive surface on which light is projected, thus eliminating the need for complex electrode design and fabrication processes. In this paper, we demonstrate that mouse cells comprising melan-a cells, RAW 267.4 macrophage cells, peripheral white blood cells and lymphocytes, can be manipulated in an opto-electrokinetics (OEK) device with appropriate DEP parameters. Our OEK device generates a non-rotating electric field and exerts a localized DEP force on optical electrodes. Hitherto, we are the first group to report that among all the cells investigated, melan-a cells, lymphocytes and white blood cells were found to undergo self-rotation in the device in the presence of a DEP force. The rotational speed of the cells depended on the voltage and frequency applied and the cells' distance from the optical center. We discuss a possible mechanism for explaining this new observation of induced self-rotation based on the physical properties of cells. We believe that this rotation phenomenon can be used to identify cell type and to elucidate the dielectric and physical properties of cells.
语种: 英语
WOS记录号: WOS:000313429800009
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
关键词[WOS]: ELECTRIC-FIELD ; DIELECTROPHORESIS ; MANIPULATION ; SEPARATION
研究领域[WOS]: Science & Technology - Other Topics
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/10636
Appears in Collections:机器人学研究室_期刊论文

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