Non-brownian microrheology of a fluid-gel interface.
نویسندگان
چکیده
We use stroboscopic video microscopy to study the motion of a sheared fluid-gel interface. 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.
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عنوان ژورنال:
- Physical review letters
دوره 100 7 شماره
صفحات -
تاریخ انتشار 2008