Highly Spherical Nanoparticles Probe Gigahertz Viscoelastic Flows of Simple Liquids Without the No-Slip Condition

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dc.contributor.authorUthe, Brian
dc.contributor.authorCollis, Jesse F.
dc.contributor.authorMadadi, Mahyar
dc.contributor.authorSader, John E.
dc.contributor.authorPelton, Matthew
dc.date.accessioned2021-05-24T16:55:42Z
dc.date.available2021-05-24T16:55:42Z
dc.date.issued2021-05-06
dc.description.abstractSimple liquids are conventionally described by Newtonian fluid mechanics, based on the assumption that relaxation processes in the flow occur much faster than the rate at which the fluid is driven. Nanoscale solids, however, have characteristic mechanical response times on the picosecond scale, which are comparable to mechanical relaxation times in simple liquids; as a result, viscoelastic effects in the liquid must be considered. These effects have been observed using time-resolved optical measurements of vibrating nanoparticles, but interpretation has often been complicated by finite velocity slip at the liquid–solid interface. Here, we use highly spherical gold nanoparticles to drive flows that are theoretically modeled without the use of the no-slip boundary condition at the particle surface. We obtain excellent agreement with this analytical theory that considers both the compression and shear relaxation properties of the liquid.en_US
dc.description.sponsorshipM.P. and B.U. acknowledge funding from the U.S. National Science Foundation under grant DMR-1554895. J.F.C., M.M. and J.E.S. acknowledge support from the Australian Research Council Centre of Excellence in Exciton Science (CE170100026) and the Australian Research Council Grants Scheme.en_US
dc.description.urihttps://pubs.acs.org/doi/full/10.1021/acs.jpclett.1c01013en_US
dc.format.extent2 filesen_US
dc.genrejournal articles preprintsen_US
dc.identifierdoi:10.13016/m2onfl-fhgy
dc.identifier.citationUthe, Brian; Collis, Jesse F.; Madadi, Mahyar; Sader, John E.; Pelton, Matthew; Highly Spherical Nanoparticles Probe Gigahertz Viscoelastic Flows of Simple Liquids Without the No-Slip Condition; The Journal of Physical Chemistry Letters 12,18, 4440-4446 (2021); https://pubs.acs.org/doi/full/10.1021/acs.jpclett.1c01013en_US
dc.identifier.urihttps://doi.org/10.1021/acs.jpclett.1c01013
dc.identifier.urihttp://hdl.handle.net/11603/21605
dc.language.isoen_USen_US
dc.publisherACS Publicationsen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Physics Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Student Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsThis document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in The Journal of Physical Chemistry Letters, copyright © American Chemical Society after peer review. To access the final edited and published work see https://pubs.acs.org/doi/full/10.1021/acs.jpclett.1c01013.
dc.titleHighly Spherical Nanoparticles Probe Gigahertz Viscoelastic Flows of Simple Liquids Without the No-Slip Conditionen_US
dc.typeTexten_US

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