Journal article
Layer with reduced viscosity at water-oil interfaces probed by fluorescence correlation spectroscopy
Physical review. E, Statistical, nonlinear, and soft matter physics, v 87(1), pp 012403-012403
Jan 2013
PMID: 23410340
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The two-dimensional diffusion of isolated molecular tracers at the water-n-alkane interface was studied with fluorescence correlation spectroscopy. The interfacial diffusion coefficients of larger tracers with a hydrodynamic radius of 4.0 nm agreed well with the values calculated from the macroscopic viscosities of the two bulk phases. However, for small molecule tracers with hydrodynamic radii of only 1.0 and 0.6 nm, notable deviations were observed, indicating the existence of an interfacial region with reduced effective viscosity and increased mobility.
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Details
- Title
- Layer with reduced viscosity at water-oil interfaces probed by fluorescence correlation spectroscopy
- Creators
- Dapeng Wang - Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, GermanyLeonid PevznerChen LiKalina PenevaChristopher Y LiDerek Y C ChanKlaus MüllenMarkus MezgerKaloian KoynovHans-Jürgen Butt
- Publication Details
- Physical review. E, Statistical, nonlinear, and soft matter physics, v 87(1), pp 012403-012403
- Publisher
- Cold Spring Harbor Press; United States
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; Marketing
- Web of Science ID
- WOS:000314102900008
- Scopus ID
- 2-s2.0-84872518194
- Other Identifier
- 991014877652404721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Fluids & Plasmas
- Physics, Mathematical