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Viscoelastic Flows in Simple Liquids Generated by Vibrating Nanostructures

Pelton, Matthew and Chakraborty, Debadi and Malachosky, Edward and Guyot-Sionnest, Philippe and Sader, John E. (2013) Viscoelastic Flows in Simple Liquids Generated by Vibrating Nanostructures. Physical Review Letters, 111 (24). Art. No. 244502 . ISSN 0031-9007.

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Newtonian fluid mechanics, in which the shear stress is proportional to the strain rate, is synonymous with the flow of simple liquids such as water. We report the measurement and theoretical verification of non-Newtonian, viscoelastic flow phenomena produced by the high-frequency (20 GHz) vibration of gold nanoparticles immersed in water-glycerol mixtures. The observed viscoelasticity is not due to molecular confinement, but is a bulk continuum effect arising from the short time scale of vibration. This represents the first direct mechanical measurement of the intrinsic viscoelastic properties of simple bulk liquids, and opens a new paradigm for understanding extremely high frequency fluid mechanics, nanoscale sensing technologies, and biophysical processes.

Item Type:Article
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Sader, John E.0000-0002-7096-0627
Additional Information:© 2013 American Physical Society. Received 2 July 2013; published 13 December 2013. We thank D. Gosztola for valuable assistance with the transient-absorption measurements. This work was performed, in part, at the Center for Nanoscale Materials, a U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences User Facility under Contract No. DE-AC02-06CH11357. E.M. was supported by NSF Grant No. CHE1111799. This research was supported by the Australian Research Council Grants Scheme and by Caltech’s Kavli Nanoscience Institute.
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Department of Energy (DOE) Office of Science, Office of Basic Energy SciencesDE-AC02-06CH11357
Australian Research Council Grants SchemeUNSPECIFIED
Caltech Kavli Nanoscience InstituteUNSPECIFIED
Issue or Number:24
Classification Code:PACS: 47.50.-d, 47.61.-k, 62.25.Fg,
Record Number:CaltechAUTHORS:20140117-084526325
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:43422
Deposited By: Tony Diaz
Deposited On:17 Jan 2014 17:20
Last Modified:09 Mar 2020 13:19

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