“Railed microfluidics,” is a fully deterministic way of guiding microstructures inside a fluidic channel. Using railed microfluidics, we achieved fluidic self assembly of various complex heterogeneous microstructures. By transporting many different microstructures to exact assembly sites, complex 1D and 2D systems are assembled without wasting a single microstructure.
Su Eun Chung, Wook Park, Sunghwan Shin, Seung Ah Lee, and Sunghoon Kwon, "Guided and fluidic self-assembly of microstructures using railed microfluidic channels", Nature Materials, Vol. 5, p.581-587, 2008. [Cover article July 2008] [PDF]
"Groove train", Research Highlights, Nature, Vol. 453, p.1147, 26 June 2008
