Mismatch of bulk viscosity reduces interfacial diffusivity at an aqueous-oil system

Makiko Negishi; Takahiro Sakaue; Kenichi Yoshikawa

doi:10.1103/PhysRevE.81.020901

Mismatch of bulk viscosity reduces interfacial diffusivity at an aqueous-oil system

Makiko Negishi, Takahiro Sakaue, Kenichi Yoshikawa

Condensed Matter Physics

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

A significant decrease in the diffusivity of phospholipid molecules at an aqueous-oil monolayer was observed experimentally when the bathing solutions had different viscosities η1 η2. Near the point of isoviscosity η1 η2, the diffusion constant at the monolayer can be drastically affected by a slight change in the viscosity mismatch. We interpreted this phenomenon by considering the effect of vertical fluctuations which affect the long-term dynamics of two-dimensional lateral diffusion at the monolayer.

Original language	English
Article number	020901
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	81
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevE.81.020901
Publication status	Published - Feb 4 2010

All Science Journal Classification (ASJC) codes

Statistical and Nonlinear Physics
Statistics and Probability
Condensed Matter Physics

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