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in ethylene glycol. Korea-Australia Rheology Journal 2005, 17:35–40. 38. De Ruijter MJ, Charlot M, Voué M, De Coninck J: Experimental evidence of several time scales in drop spreading. Langmuir 2000, 16:2363–2368.CrossRef Competing interests The authors declare that they have no competing interests. Authors’ contributions MR, CY, and WKC contributed equally in carrying out the experimental and theoretical studies. All authors read and approved the final manuscript.”
“Background Intensive research has been performed on carbon nanotube (CNT)-integrated microdevices and nanodevices to take advantage of the remarkable thermal, mechanical, electrical, and electromechanical properties of CNTs [1]. Examples of such devices RG7420 cost include nanoelectronic devices and optoelectronic components [2–4], actuators and oscillators [5–7], memory devices and switches [8, 9], and mechanical, chemical, biological, and thermal sensors [10–13]. Controlling the number of CNTs synthesized and their specific placement on nanostructures and
microstructures is critical to using the inherent properties of massively parallel-integrated CNTs for practical device applications. However, previously reported methods of integrating CNTs in CNT-based devices are low-throughput methods such as dispersion of CNTs followed by electron beam lithography patterning [10], dielectrophoresis EVP4593 [14–17], and pick-and-place manipulation [18]. Although the assembly of individual CNTs at specific locations has previously been demonstrated using such methods, high-throughput batch almost fabrication has not been feasible over a large
area because of time-consuming, labor-intensive processes. Chemical vapor deposition (CVD) is scalable over a large area, so it is an attractive alternative for directly integrating individual CNTs into practical device applications. Accordingly, various methods of patterning nanocatalysts have been developed using electron beam lithography [19], nanoimprinting [20], polystyrene nanospheres [21], anodic aluminum oxide nanotemplates [22], nanocontact printing [23], and topographical contact holes [24] to synthesize individual CNTs under controlled conditions. We used nanostencil lithography as a method of patterning a nanocatalyst to demonstrate and characterize number- and location-controlled synthesis of CNTs. Nanostencil lithography has been widely used to fabricate various nanopatterns [25–28], nanoparticles [29, 30], and nanowires [31], and it is advantageous because it consists of a series of simple fabrication steps and because the stencil mask is reusable.