title: Non-equilibrium electrokinetic micromixer with 3D nanochannel networks.
abstract: We report an active micromixer which utilizes vortex generation due to non-equilibrium electrokinetics near the interface between a microchannnel and a nanochannel networks membrane (NCNM), constructed from geometrically controlled in situ self-assembled nanoparticles. A large interfacing area where it is possible to generate vortices can be realized, because nano-interstices between the assembled nanoparticles are intrinsically collective three-dimensional nanochannel networks, which may be compared to typical silicon-based 2D nanochannels. The proposed mixer shows a 2-fold shorter mixing time (~0.78 ms) and a 34-fold shorter mixing length (~7.86 μm) compared to conventional 2D nanochannels.
authors.affiliation: Department of Mechanical Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, 121-742, Korea. sortpark@sogang.ac.kr daejoong@sogang.ac.kr.
authors.forename: Eunpyo
authors.initials: E
authors.lastname: Choi
authors.forename: Kilsung
authors.initials: K
authors.lastname: Kwon
authors.forename: Seung Jun
authors.initials: SJ
authors.lastname: Lee
authors.forename: Daejoong
authors.initials: D
authors.lastname: Kim
authors.forename: Jungyul
authors.initials: J
authors.lastname: Park