One-particle microrheology at liquid-liquid interfaces

Jian Wu, Lenore L. Dai

Research output: Contribution to journalArticle

19 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 languageEnglish (US)
Article number094107
JournalApplied Physics Letters
Volume89
Issue number9
DOIs
StatePublished - Sep 8 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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