Shim Joon S, Yun Yeo-Heung, Rust Michael J, Do Jaephil, Shanov Vesselin, Schulz Mark J, Ahn Chong H
Department of Electrical and Computer Engineering, Microsystems and BioMEMS Laboratory, University of Cincinnati, Cincinnati, OH 45221, USA.
Nanotechnology. 2009 Aug 12;20(32):325607. doi: 10.1088/0957-4484/20/32/325607. Epub 2009 Jul 21.
A new method for the self-assembly of a carbon nanotube (CNT) using magnetic capturing and fluidic alignment has been developed and characterized in this work. In this new method, the residual iron (Fe) catalyst positioned at one end of the CNT was utilized as a self-assembly driver to attract and position the CNT, while the assembled CNT was aligned by the shear force induced from the fluid flow through the assembly channel. The self-assembly procedures were successfully developed and the electrical properties of the assembled multi-walled carbon nanotube (MWNT) and single-walled carbon nanotube (SWNT) were fully characterized. The new assembly method developed in this work shows its feasibility for the precise self-assembly of parallel CNTs for electronic devices and nanobiosensors.
本文开发并表征了一种利用磁捕获和流体对准实现碳纳米管（CNT）自组装的新方法。在这种新方法中，位于碳纳米管一端的残余铁（Fe）催化剂被用作自组装驱动剂，以吸引和定位碳纳米管，而组装好的碳纳米管则通过流体流经组装通道所产生的剪切力实现对准。成功开发了自组装程序，并对组装好的多壁碳纳米管（MWNT）和单壁碳纳米管（SWNT）的电学性质进行了全面表征。本文开发的新组装方法显示出其在用于电子器件和纳米生物传感器的平行碳纳米管精确自组装方面的可行性。
