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Dielectrophoretic assembly of 2 nm gold particles for nano-sensing applications
Li ML(李明林); Leung, Siu Ling; Qu YL(曲艳丽); Dong ZL(董再励); Li WJ(李文荣)
作者部门机器人学研究室
会议名称5th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2010
会议日期January 20-23, 2010
会议地点Xiamen, China
会议录名称2010 IEEE 5th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2010
出版者IEEE Computer Society
出版地Piscataway, NJ, USA
2010
页码932-936
收录类别EI
EI收录号20104813421293
产权排序1
ISBN号978-1-4244-6543-9
关键词Dielectrophoresis Gold Nanoparticles Nanodevices Nanoassembly
摘要

This paper describes the assembly of 2 nm gold nanoparticles between micro-fabricated planar electrodes by using dielectrophoresis (DEP). The optimal conditions for effectively dieletrophoretic manipulation have been established through theoretical analysis and experimental validation. In the theoretical analysis, the effect of Brownian motion was taken into consideration, as well as the electrothermal flow and the AC electroosmosis flow. For effective manipulation of nanoparticles using DEP, proper high electric field strength is desired to give rise to dominate DEP effect, since the higher electric field strength increases the Joule heating and the lower strength reduces the DEP force. The current results indicate that the input voltage of 16Vp-p, 150 kHz leads to effective assembly of 2 nm gold nanoparticles. Our study proved that the DEP is capable of consistently assembling gold nanoparticles down to 2 nm in diameter with micro-fabricated electrodes, which was thought to be extremely difficult in the past.

语种英语
文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/20062
专题机器人学研究室
通讯作者Li WJ(李文荣)
作者单位1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, China
2.College of Mechanical Engineering, Fuzhou University, China
3.Graduate University, Chinese Academy of Sciences, China
4.University of Arizona, United States
5.Chinese University of Hong Kong, Hong Kong
推荐引用方式
GB/T 7714
Li ML,Leung, Siu Ling,Qu YL,et al. Dielectrophoretic assembly of 2 nm gold particles for nano-sensing applications[C]. Piscataway, NJ, USA:IEEE Computer Society,2010:932-936.
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