Carbon nanotubes as heating elements for micro-bubble generation

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 机器人学研究室

	Carbon nanotubes as heating elements for micro-bubble generation
	Zhou, Wenli; Chow, Gary; Li WJ(李文荣); Leong, Philip
	2006
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
关键词	carbon nanotubes microbubble generation Joule heating dielectrophoretic manipulation MEMS
页码	1084-1087
通讯作者	Zhou, Wenli
中文摘要	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.
收录类别	EI ; CPCI（ISTP）
产权排序	3
会议主办者	IEEE
会议录	2006 1ST IEEE INTERNATIONAL CONFERENCE ON NANO/MICRO ENGINEERED AND MOLECULAR SYSTEMS, VOLS 1-3
会议录出版者	IEEE
会议录出版地	NEW YORK
语种	英语
ISBN号	978-1-4244-0139-0
WOS记录号	WOS:000248485802013
内容类型	会议论文
源URL	[http://ir.sia.cn/handle/173321/19860]
专题	沈阳自动化研究所_机器人学研究室
推荐引用方式 GB/T 7714	Zhou, Wenli,Chow, Gary,Li WJ,et al. Carbon nanotubes as heating elements for micro-bubble generation[C]. 见:IEEE International Conference of Nano/Micro Engineered and Molecular Systems. Zhuhai, China. January 18-21, 2006.