Using Optical Tweezers for the Characterization of Polyelectrolyte Solutions with Very Low Viscoelasticity

[Image: see text] 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 p...

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Autores principales: Pommella, Angelo, Preziosi, Valentina, Caserta, Sergio, Cooper, Jonathan M., Guido, Stefano, Tassieri, Manlio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2013
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3730292/
https://www.ncbi.nlm.nih.gov/pubmed/23786307
http://dx.doi.org/10.1021/la4015948
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author Pommella, Angelo
Preziosi, Valentina
Caserta, Sergio
Cooper, Jonathan M.
Guido, Stefano
Tassieri, Manlio
author_facet Pommella, Angelo
Preziosi, Valentina
Caserta, Sergio
Cooper, Jonathan M.
Guido, Stefano
Tassieri, Manlio
author_sort Pommella, Angelo
collection PubMed
description [Image: see text] 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.
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spelling pubmed-37302922013-08-02 Using Optical Tweezers for the Characterization of Polyelectrolyte Solutions with Very Low Viscoelasticity Pommella, Angelo Preziosi, Valentina Caserta, Sergio Cooper, Jonathan M. Guido, Stefano Tassieri, Manlio Langmuir [Image: see text] 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. American Chemical Society 2013-06-20 2013-07-23 /pmc/articles/PMC3730292/ /pubmed/23786307 http://dx.doi.org/10.1021/la4015948 Text en Copyright © 2013 American Chemical Society
spellingShingle Pommella, Angelo
Preziosi, Valentina
Caserta, Sergio
Cooper, Jonathan M.
Guido, Stefano
Tassieri, Manlio
Using Optical Tweezers for the Characterization of Polyelectrolyte Solutions with Very Low Viscoelasticity
title Using Optical Tweezers for the Characterization of Polyelectrolyte Solutions with Very Low Viscoelasticity
title_full Using Optical Tweezers for the Characterization of Polyelectrolyte Solutions with Very Low Viscoelasticity
title_fullStr Using Optical Tweezers for the Characterization of Polyelectrolyte Solutions with Very Low Viscoelasticity
title_full_unstemmed Using Optical Tweezers for the Characterization of Polyelectrolyte Solutions with Very Low Viscoelasticity
title_short Using Optical Tweezers for the Characterization of Polyelectrolyte Solutions with Very Low Viscoelasticity
title_sort using optical tweezers for the characterization of polyelectrolyte solutions with very low viscoelasticity
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3730292/
https://www.ncbi.nlm.nih.gov/pubmed/23786307
http://dx.doi.org/10.1021/la4015948
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