Hobbie, E.
, Lin-Gibson, S.
and Kumar, S.
(2008),
Non-Brownian Microrheology of a Fluid Gel Interface, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852835 (Accessed May 12, 2026)
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Non-Brownian Microrheology of a Fluid Gel Interface
Published
Author(s)
, , S K. Kumar
Abstract
We use stroboscopic video microscopy to study the motion of a sheared fluid-gel interface. External mechanical noise plays a role analogous to temperature, but with a low-frequency breakdown of linear response consistent with an underlying instability. We relate the fast motion of the interface to the rheological properties of the gel, laying the foundation for a non-Brownian optical microrheology.Citation
Physical Review Letters
Pub Type
Journals
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Keywords
fluid-gel interface, non-Brownian, optical microrheology
Citation
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Created February 20, 2008, Updated February 19, 2017