Measuring storage and loss moduli using optical tweezers: Broadband microrheology

Manlio Tassieri, Graham M. Gibson, R. M. L. Evans, Alison M. Yao, Rebecca Warren, Miles J. Padgett, Jonathan M. Cooper

Research output: Contribution to journalArticle

50 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)026308
Number of pages5
JournalPhysical Review E
Volume81
Issue number2
DOIs
Publication statusPublished - 18 Feb 2010

Fingerprint

Optical Tweezers
Broadband
Modulus
frequency ranges
trajectories
broadband
Generalized Langevin Equation
Complex Fluids
fluids
Trajectory
Dependent
Range of data

Keywords

  • complex fluids
  • particle
  • rheology
  • force

Cite this

Tassieri, M., Gibson, G. M., Evans, R. M. L., Yao, A. M., Warren, R., Padgett, M. J., & Cooper, J. M. (2010). Measuring storage and loss moduli using optical tweezers: Broadband microrheology. Physical Review E, 81(2), 026308. https://doi.org/10.1103/PhysRevE.81.026308
Tassieri, Manlio ; Gibson, Graham M. ; Evans, R. M. L. ; Yao, Alison M. ; Warren, Rebecca ; Padgett, Miles J. ; Cooper, Jonathan M. / Measuring storage and loss moduli using optical tweezers: Broadband microrheology. In: Physical Review E. 2010 ; Vol. 81, No. 2. pp. 026308.
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Tassieri, M, Gibson, GM, Evans, RML, Yao, AM, Warren, R, Padgett, MJ & Cooper, JM 2010, 'Measuring storage and loss moduli using optical tweezers: Broadband microrheology', Physical Review E, vol. 81, no. 2, pp. 026308. https://doi.org/10.1103/PhysRevE.81.026308

Measuring storage and loss moduli using optical tweezers: Broadband microrheology. / Tassieri, Manlio; Gibson, Graham M.; Evans, R. M. L.; Yao, Alison M.; Warren, Rebecca; Padgett, Miles J.; Cooper, Jonathan M.

In: Physical Review E, Vol. 81, No. 2, 18.02.2010, p. 026308.

Research output: Contribution to journalArticle

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AU - Padgett, Miles J.

AU - Cooper, Jonathan M.

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KW - rheology

KW - force

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