One-particle microrheology at liquid-liquid interfaces

Jian Wu; Lenore L. Dai

doi:10.1063/1.2344937

One-particle microrheology at liquid-liquid interfaces

Jian Wu, Lenore L. Dai

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

22 Scopus citations

Abstract

The authors use Pickering emulsions as a model system to investigate the dynamics of charged microparticles at polydimethylsiloxane (oil)-water interfaces using confocal laser scanning microscopy. More importantly, they have explored the potential of developing one-particle microrheology at liquid-liquid interfaces. The complex, loss, and storage moduli of oil-water interfaces as a function of frequency measured from microrheology are compared with those of bulk oils measured from a conventional rheometer and developed bulk microrheology. The nature of the tracer particles plays an important role in one-particle microrheology at liquid-liquid interfaces.

Original language	English (US)
Article number	094107
Journal	Applied Physics Letters
Volume	89
Issue number	9
DOIs	https://doi.org/10.1063/1.2344937
State	Published - 2006
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2344937

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title = "One-particle microrheology at liquid-liquid interfaces",

abstract = "The authors use Pickering emulsions as a model system to investigate the dynamics of charged microparticles at polydimethylsiloxane (oil)-water interfaces using confocal laser scanning microscopy. More importantly, they have explored the potential of developing one-particle microrheology at liquid-liquid interfaces. The complex, loss, and storage moduli of oil-water interfaces as a function of frequency measured from microrheology are compared with those of bulk oils measured from a conventional rheometer and developed bulk microrheology. The nature of the tracer particles plays an important role in one-particle microrheology at liquid-liquid interfaces.",

author = "Jian Wu and Dai, {Lenore L.}",

note = "Funding Information: The authors are grateful to the Imaging Center and G. B. McKenna at Texas Tech University for instrument usage. This work is supported in part by the Texas Higher Education Coordinating Board Advanced Technology Program, American Chemical Society Petroleum Research Fund, and the National Science Foundation (CTS-0500323 and CTS-0624011). ",

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AB - The authors use Pickering emulsions as a model system to investigate the dynamics of charged microparticles at polydimethylsiloxane (oil)-water interfaces using confocal laser scanning microscopy. More importantly, they have explored the potential of developing one-particle microrheology at liquid-liquid interfaces. The complex, loss, and storage moduli of oil-water interfaces as a function of frequency measured from microrheology are compared with those of bulk oils measured from a conventional rheometer and developed bulk microrheology. The nature of the tracer particles plays an important role in one-particle microrheology at liquid-liquid interfaces.

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One-particle microrheology at liquid-liquid interfaces

Abstract

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