Fabrication of nanoassemblies using flow control.

Ropp, Chad; Cummins, Zachary; Nah, Sanghee; Qin, Sijia; Seog, Ji Hyun; Lee, Sang Bok; Fourkas, John T; Shapiro, Benjamin et al. · Nano Lett · 2013

basic_science · Level V

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Abstract

Synthetic nanostructures, such as nanoparticles and nanowires, can serve as modular building blocks for integrated nanoscale systems. We demonstrate a microfluidic approach for positioning, orienting, and assembling such nanostructures into nanoassemblies. We use flow control combined with a cross-linking photoresist to position and immobilize nanostructures in desired positions and orientations. Immobilized nanostructures can serve as pivots, barriers, and guides for precise placement of subsequent nanostructures.