Show simple item record

dc.contributorVirginia Techen_US
dc.contributor.authorRadiom, Miladen_US
dc.contributor.authorRobbins, Brian A.en_US
dc.contributor.authorHonig, Christopher D. F.en_US
dc.contributor.authorWalz, John Y.en_US
dc.contributor.authorPaul, Mark R.en_US
dc.contributor.authorDucker, William A.en_US
dc.date.accessioned2014-01-23T13:49:09Z
dc.date.available2014-01-23T13:49:09Z
dc.date.issued2012-04-01
dc.identifier.citationRadiom, Milad; Robbins, Brian; Honig, Christopher D. F.; et al., " Rheology of fluids measured by correlation force spectroscopy," Rev. Sci. Instrum. 83, 043908 (2012); http://dx.doi.org/10.1063/1.4704085
dc.identifier.issn0034-6748
dc.identifier.urihttp://hdl.handle.net/10919/25132
dc.description.abstractWe describe a method, correlation force spectrometry (CFS), which characterizes fluids through measurement of the correlations between the thermally stimulated vibrations of two closely spaced micrometer-scale cantilevers in fluid. We discuss a major application: measurement of the rheological properties of fluids at high frequency and high spatial resolution. Use of CFS as a rheometer is validated by comparison between experimental data and finite element modeling of the deterministic ring-down of cantilevers using the known viscosity of fluids. The data can also be accurately fitted using a harmonic oscillator model, which can be used for rapid rheometric measurements after calibration. The method is non-invasive, uses a very small amount of fluid, and has no actively moving parts. It can also be used to analyze the rheology of complex fluids. We use CFS to show that (non-Newtonian) aqueous polyethylene oxide solution can be modeled approximately by incorporating an elastic spring between the cantilevers. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4704085]
dc.description.sponsorshipNational Science Foundation CBET-0959228
dc.description.sponsorshipVirginia Tech
dc.language.isoen_US
dc.publisherAIP Publishing
dc.subjectMicroscopic viscoelasticityen_US
dc.subject2-point microrheologyen_US
dc.subjectThermal fluctuationsen_US
dc.subjectStochastic dynamicsen_US
dc.subjectFrequency-responseen_US
dc.subjectMicelle solutionsen_US
dc.subjectMicrocantileversen_US
dc.subjectViscous fluidsen_US
dc.subjectComplex fluidsen_US
dc.subjectSoft materialsen_US
dc.titleRheology of fluids measured by correlation force spectroscopyen_US
dc.typeArticleen_US
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/rsi/83/4/10.1063/1.4704085
dc.date.accessed2014-01-25
dc.title.serialReview of Scientific Instruments
dc.identifier.doihttps://doi.org/10.1063/1.4704085
dc.type.dcmitypeTexten_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record