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Carbon nanotubes as heating elements for micro-bubble generation
Zhou, Wenli; Chow, Gary; Li WJ(李文荣); Leong, Philip
作者部门机器人学研究室
会议名称IEEE International Conference of Nano/Micro Engineered and Molecular Systems
会议日期January 18-21, 2006
会议地点Zhuhai, China
会议主办者IEEE
会议录名称2006 1ST IEEE INTERNATIONAL CONFERENCE ON NANO/MICRO ENGINEERED AND MOLECULAR SYSTEMS, VOLS 1-3
出版者IEEE
出版地NEW YORK
2006
页码1084-1087
收录类别EI ; CPCI(ISTP)
EI收录号20082811356296
WOS记录号WOS:000248485802013
产权排序3
ISBN号978-1-4244-0139-0
关键词Carbon Nanotubes Microbubble Generation Joule Heating Dielectrophoretic Manipulation Mems
摘要Development and preliminary characterization on the performance of a micro-bubble generator using Carbon Nanotubes (CNTs) as heating elements are presented. Dielectrophoretic force was used to align CNTs between fabricated micro-electrodes. The contacts between the CNTs and electrodes were fixed by patterned SiO2 thin film. Localized high temperature due to Joule-heating generated by an AC current of a few hundred mu A (in general <= 100Hz) in the carbon nanotubes vaporized surrounding water and generated micron sized bubbles (with diameter of 5 mu m detectable under normal optical microscope). These experimental evidence indicate that exposed CNTs may function as a single nucleation site for bubble generation. The power required to generate these bubbles can be as small as 337 mu W, which is with 1-2 order of magnitude smaller than that of typical metal or polysilicon based MEMS heaters. Precisely controlled micro bubble generation may find promising applications in ink-jet printing, micro-fluidic visualization, or micro-fluidic based bio-manipulation.
语种英语
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/19860
专题机器人学研究室
通讯作者Zhou, Wenli
作者单位1.Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan, China
2.Department of Computer Science and Engineering, Chinese University of Hong Kong, Hong Kong, Hong Kong
3.Centre for Micro and Nano Systems, Chinese University of Hong Kong, Hong Kong, Hong Kong
4.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, Liaoning, China
5.IEEE
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Zhou, Wenli,Chow, Gary,Li WJ,et al. Carbon nanotubes as heating elements for micro-bubble generation[C]//IEEE. NEW YORK:IEEE,2006:1084-1087.
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