Combined macro- and microrheometer for use with Langmuir monolayers |
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Authors: | Walder Robert Schmidt Christoph F Dennin Michael |
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Affiliation: | Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA. |
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Abstract: | A Langmuir monolayer trough that is equipped for simultaneous microrheology and standard rheology measurements has been constructed. The central elements are the trough itself with a full range of optical tools accessing the air-water interface from below the trough and a portable knife-edge torsion pendulum that can access the interface from above. The ability to simultaneously measure the mechanical response of Langmuir monolayers on very different length scales is an important step for our understanding of the mechanical response of two-dimensional viscoelastic networks. |
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