Measuring storage and loss moduli using optical tweezers: broadband microrheology.

@article{Tassieri2010MeasuringSA,
  title={Measuring storage and loss moduli using optical tweezers: broadband microrheology.},
  author={Manlio Tassieri and Graham M. Gibson and Rebekah M. Evans and Alison M. Yao and Rebecca Warren and Miles J. Padgett and Jonathan M. Cooper},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2010},
  volume={81 2 Pt 2},
  pages={026308}
}
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… CONTINUE READING