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Title: Nanofluidic mixing via hybrid surface

We report the design and fabrication of the nanofluidic mixer comprising hybrid hydrophobic/hydrophilic micro-patterns on the top and bottom walls of the nanochannel. The unique feature of such mixer is that, without any geometric structure inside the nanochannel, the mixing can be realized solely by the hybrid surfaces. Besides, the mixing length in nanomixer has been significantly shortened comparing to micromixer. We attribute the mixing achievement to be caused by the convection and chaotic flows of two fluids along the hybrid surface due to the large surface-to-volume ratio of the nanochannel.
Authors:
;  [1] ; ;  [2] ;  [3] ;  [1] ;  [4]
  1. Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon (Hong Kong)
  2. Nano Science and Technology Program and Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon (Hong Kong)
  3. Institute of Physics, Chinese Academy of Sciences, Beijing (China)
  4. (Hong Kong)
Publication Date:
OSTI Identifier:
22350987
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 16; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CONVECTION; FABRICATION; FLUIDS; HYBRID SYSTEMS; MIXING; NANOSTRUCTURES; SURFACES