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

Show simple item record Clarke, Richard en Bachtiar, V en Lee, Tet Chuan en Cater, John en Minton, J en 2015-06-26T03:19:03Z en 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 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 en
dc.rights.uri 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 en
pubs.subtype Article en
pubs.elements-id 477263 en Bioengineering Institute en Engineering en Engineering Admin en Engineering Science en
dc.identifier.eissn 1089-7550 en
pubs.number 094501 en 2015-03 en

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