Measuring storage and loss moduli using optical tweezers: broadband microrheology
Soft Condensed Matter
2015-05-14 v1
Abstract
We present an experimental procedure to perform broadband microrheological measurements with optical tweezers. A generalised 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.
Keywords
Cite
@article{arxiv.0910.1339,
title = {Measuring storage and loss moduli using optical tweezers: broadband microrheology},
author = {Manlio Tassieri and Graham M. Gibson and R. M. L. Evans and Alison M. Yao and Rebecca Warren and Miles J. Padgett and Jonathan M. Cooper},
journal= {arXiv preprint arXiv:0910.1339},
year = {2015}
}
Comments
5 pages, 3 figures