Measuring storage and loss moduli using optical tweezers: Broadband microrheology

Tools

Tassieri, Manlio and Gibson, Graham M. and Evans, R. M. L. and Yao, Alison M. and Warren, Rebecca and Padgett, Miles J. and Cooper, Jonathan M. (2010) Measuring storage and loss moduli using optical tweezers: Broadband microrheology. Physical Review E, 81 (2). 026308. ISSN 2470-0053 (https://doi.org/10.1103/PhysRevE.81.026308)

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Abstract

We present an experimental procedure to perform broadband microrheological measurements with optical tweezers. A generalized Langevin equation is adopted to relate the time-dependent trajectory of a particle in an imposed flow to the frequency-dependent moduli of the complex fluid. This procedure allows us to measure the material linear viscoelastic properties across the widest frequency range achievable with optical tweezers.

ORCID iDs

Tassieri, Manlio, Gibson, Graham M., Evans, R. M. L., Yao, Alison M. ORCID logoORCID: https://orcid.org/0000-0002-6260-5852, Warren, Rebecca, Padgett, Miles J. and Cooper, Jonathan M.;
  • Item type:Article
    ID code:30989
    Dates:
    Date
    Event
    18 February 2010
    Published
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:13 May 2011 13:27
    Last modified:11 Nov 2024 09:44
    URI:https://strathprints.strath.ac.uk/id/eprint/30989
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