The interplay between apparent viscosity and wettability in nanoconfined water

Deborah Ortiz-Young, Hsiang-Chih Chiu, Suenne Kim, Kislon Voïtchovsky and Elisa Riedo ()
Additional contact information
Deborah Ortiz-Young: School of Physics, Georgia Institute of Technology
Hsiang-Chih Chiu: School of Physics, Georgia Institute of Technology
Suenne Kim: School of Physics, Georgia Institute of Technology
Kislon Voïtchovsky: Institute of Materials, Ecole Polytechnique Fédérale de Lausanne
Elisa Riedo: School of Physics, Georgia Institute of Technology

Nature Communications, 2013, vol. 4, issue 1, 1-6

Abstract: Abstract Understanding and manipulating fluids at the nanoscale is a matter of growing scientific and technological interest. Here we show that the viscous shear forces in nanoconfined water can be orders of magnitudes larger than in bulk water if the confining surfaces are hydrophilic, whereas they greatly decrease when the surfaces are increasingly hydrophobic. This decrease of viscous forces is quantitatively explained with a simple model that includes the slip velocity at the water surface interface. The same effect is observed in the energy dissipated by a tip vibrating in water perpendicularly to a surface. Comparison of the experimental data with the model shows that interfacial viscous forces and compressive dissipation in nanoconfined water can decrease up to two orders of magnitude due to slippage. These results offer a new understanding of interfacial fluids, which can be used to control flow at the nanoscale.

Date: 2013
References: Add references at CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.nature.com/articles/ncomms3482 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3482

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms3482

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().