The interplay between apparent viscosity and wettability in nanoconfined water

Deborah Ortiz-Young, Hsiang Chih Chiu, Suenne Kim, Kislon Voïtchovsky, Elisa Riedo

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Article number2482
JournalNature Communications
Volume4
DOIs
StatePublished - Oct 1 2013

Fingerprint

Wettability
wettability
Viscosity
Wetting
viscosity
Water
water
fluids
surface water
Surface Tension
confining
Fluids
slip
Flow control
dissipation
shear
energy

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Chemistry(all)
  • Physics and Astronomy(all)

Cite this

The interplay between apparent viscosity and wettability in nanoconfined water. / Ortiz-Young, Deborah; Chiu, Hsiang Chih; Kim, Suenne; Voïtchovsky, Kislon; Riedo, Elisa.

In: Nature Communications, Vol. 4, 2482, 01.10.2013.

Research output: Contribution to journalArticle

Ortiz-Young, Deborah ; Chiu, Hsiang Chih ; Kim, Suenne ; Voïtchovsky, Kislon ; Riedo, Elisa. / The interplay between apparent viscosity and wettability in nanoconfined water. In: Nature Communications. 2013 ; Vol. 4.
@article{5956b398e4f048e7b049ad53e9bfe388,
title = "The interplay between apparent viscosity and wettability in nanoconfined water",
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.",
author = "Deborah Ortiz-Young and Chiu, {Hsiang Chih} and Suenne Kim and Kislon Vo{\"i}tchovsky and Elisa Riedo",
year = "2013",
month = "10",
day = "1",
doi = "10.1038/ncomms3482",
language = "English (US)",
volume = "4",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",

}

TY - JOUR

T1 - The interplay between apparent viscosity and wettability in nanoconfined water

AU - Ortiz-Young, Deborah

AU - Chiu, Hsiang Chih

AU - Kim, Suenne

AU - Voïtchovsky, Kislon

AU - Riedo, Elisa

PY - 2013/10/1

Y1 - 2013/10/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84884659114&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84884659114&partnerID=8YFLogxK

U2 - 10.1038/ncomms3482

DO - 10.1038/ncomms3482

M3 - Article

VL - 4

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 2482

ER -