Response of a fluid-immersed microcantilever close to a deformable body

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dc.contributor.author Clarke, Richard en
dc.contributor.author Bachtiar, V en
dc.contributor.author Lee, Tet Chuan en
dc.contributor.author Cater, John en
dc.contributor.author Minton, J en
dc.date.accessioned 2015-06-26T03:19:03Z en
dc.date.issued 2015-03-07 en
dc.identifier.citation Journal of Applied Physics, 2015, 117 (9), pp. 094501-1 - 094501-12 (12) en
dc.identifier.issn 0021-8979 en
dc.identifier.uri http://hdl.handle.net/2292/26036 en
dc.description.abstract The importance of hydrodynamics upon the response of a microcantilever immersed in a viscous fluid has been well established [J. E. Sader, J. Appl. Phys. 84, 64 (1998); C. A. Eysden and J. E. Sader, J. Appl. Phys. 101, 044908 (2007)]. It has previously been shown that the presence of a nearby rigid planar surface can significantly alter a microcantilever's non-contact response, through microcantilever–surface hydrodynamic interactions [C. P. Green and J. E. Sader, Phys. Fluids 17, 073102 (2005); C. P. Green and J. E. Sader, J. Appl. Phys. 98, 114913 (2005); R. J. Clarke et al., J. Fluid Mech. 545, 397426 (2005); R. J. Clarke et al., Phys. Rev. Lett. 96, 050801 (2006).]. In cases where the nearby surface is a finite-sized deformable body, such as in noncontact microrheology measurements, we expect to see further changes in the microcantilever's response. Hence, we here compute the thermal spectra of several microcantilevers in the presence of different compliant samples that have the characteristics of soft biological fibres. Our findings demonstrate that the elastohydrodynamic regime can substantially dictate the extent to which the compliance of a given body is evident in the microcantilever's thermal spectra, and suggest that certain nondimensional quantities should lie within particular, ranges for this to be the case. We expect these findings to be of interest in areas such as Atomic Force Microscopy, microsensing, and non-contact microrheology. en
dc.publisher AIP Publishing en
dc.relation.ispartofseries Journal of Applied Physics en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/0021-8979/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Response of a fluid-immersed microcantilever close to a deformable body en
dc.type Journal Article en
dc.identifier.doi 10.1063/1.4913602 en
pubs.issue 9 en
pubs.volume 117 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 477263 en
pubs.org-id Bioengineering Institute en
pubs.org-id Engineering en
pubs.org-id Engineering Admin en
pubs.org-id Engineering Science en
dc.identifier.eissn 1089-7550 en
pubs.number 094501 en
pubs.online-publication-date 2015-03 en


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