Pommella, A., Preziosi, V., Caserta, S., Cooper, J.M. , Guido, S. and Tassieri, M. (2013) Using optical tweezers for the characterization of polyelectrolyte solutions with very low viscoelasticity. Langmuir, 29(29), pp. 9224-9230. (doi: 10.1021/la4015948)
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Abstract
Recently, optical tweezing has been used to provide a method for microrheology addressed to measure the rheological properties of small volumes of samples. In this work, we corroborate this emerging field of microrheology by using these optical methods for the characterization of polyelectrolyte solutions with very low viscoelasticity. The influence of polyelectrolyte (i.e., polyacrylamide, PAM) concentration, specifically its aging, of the salt concentration is shown. The close agreement of the technique with classical bulk rheological measurements is demonstrated, illustrating the advantages of the technique.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Tassieri, Dr Manlio and Cooper, Professor Jonathan |
| Authors: | Pommella, A., Preziosi, V., Caserta, S., Cooper, J.M., Guido, S., and Tassieri, M. |
| College/School: | College of Science and Engineering > School of Engineering > Biomedical Engineering |
| Journal Name: | Langmuir |
| Publisher: | American Chemical Society |
| ISSN: | 0743-7463 |
| ISSN (Online): | 1520-5827 |
| Copyright Holders: | Copyright © 2013 American Chemical Society |
| First Published: | First published in Langmuir 29(29):9224-9230 |
| Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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