The end of nanochannels

Thomas B. Sisan, Seth H Lichter*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

Current theories of nanochannel flow impose no upper bound on flow rates, and predict friction through nanochannels can be vanishingly small. We reassess neglecting channel entry effects in extremely long channels and find violations at the nanoscale. Even in frictionless nanochannels, end effects provide a finite amount of friction. Hence, the speed at which nanochannels transport liquids is limited. Flow-rate and slip-length measurements are reevaluated using calculations which include end-effect friction. End effects are critical for the design of new technological devices and to understand biological transport.

Original languageEnglish (US)
Pages (from-to)787-791
Number of pages5
JournalMicrofluidics and Nanofluidics
Volume11
Issue number6
DOIs
StatePublished - Dec 1 2011

Keywords

  • Aquaporin
  • Nanoscale fluid flow
  • Nanotubes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

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