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Microrheology of novel cellulose stabilized oil-in-water emulsions

Lindman, Björn LU ; Medronho, Bruno LU ; Norgren, Magnus LU ; Edlund, Håkan; Romano, A; Costa, Carolina and Filipe, A (2018) In Journal of Colloid and Interface Science 531. p.225-232
Abstract
Diffusing wave spectroscopy (DWS) is a powerful optical technique suitable to investigate turbid samples in a nondestructive and reproducible way, providing information on the static and dynamic properties of the system. This includes the relative displacement of emulsion droplets over time and changes in the viscoelastic properties. Here, novel and promising cellulose-based oil-in-water (O/W) emulsions were prepared and studied, for the first time, by DWS. Cellulose plays the role of a novel eco-friendly emulsifying agent. The hydrolysis time of cellulose was observed to affect the average size of the emulsion droplets and their stability; the longer the hydrolysis time, the more dispersed and stable the emulsions were found to be.... (More)
Diffusing wave spectroscopy (DWS) is a powerful optical technique suitable to investigate turbid samples in a nondestructive and reproducible way, providing information on the static and dynamic properties of the system. This includes the relative displacement of emulsion droplets over time and changes in the viscoelastic properties. Here, novel and promising cellulose-based oil-in-water (O/W) emulsions were prepared and studied, for the first time, by DWS. Cellulose plays the role of a novel eco-friendly emulsifying agent. The hydrolysis time of cellulose was observed to affect the average size of the emulsion droplets and their stability; the longer the hydrolysis time, the more dispersed and stable the emulsions were found to be. Additionally, a good complementarity between the microrheology (DWS) and macrorheology (mechanical rheometer) data was found. Our work suggests that DWS is a highly attractive method to investigate the stability, aging and microrheology properties of cellulose-based emulsions, providing valuable insights on their microstructure. This technique is thus highly appealing for the characterization and design of novel emulsion formulations. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
in
Journal of Colloid and Interface Science
volume
531
pages
8 pages
publisher
Elsevier
external identifiers
  • scopus:85050164802
ISSN
1095-7103
DOI
10.1016/j.jcis.2018.07.043
language
English
LU publication?
no
id
d91ebb77-7d42-4514-a2af-4d2e253b63de
date added to LUP
2019-01-03 19:22:57
date last changed
2019-05-19 05:05:08
@article{d91ebb77-7d42-4514-a2af-4d2e253b63de,
  abstract     = {Diffusing wave spectroscopy (DWS) is a powerful optical technique suitable to investigate turbid samples in a nondestructive and reproducible way, providing information on the static and dynamic properties of the system. This includes the relative displacement of emulsion droplets over time and changes in the viscoelastic properties. Here, novel and promising cellulose-based oil-in-water (O/W) emulsions were prepared and studied, for the first time, by DWS. Cellulose plays the role of a novel eco-friendly emulsifying agent. The hydrolysis time of cellulose was observed to affect the average size of the emulsion droplets and their stability; the longer the hydrolysis time, the more dispersed and stable the emulsions were found to be. Additionally, a good complementarity between the microrheology (DWS) and macrorheology (mechanical rheometer) data was found. Our work suggests that DWS is a highly attractive method to investigate the stability, aging and microrheology properties of cellulose-based emulsions, providing valuable insights on their microstructure. This technique is thus highly appealing for the characterization and design of novel emulsion formulations.},
  author       = {Lindman, Björn and Medronho, Bruno and Norgren, Magnus and Edlund, Håkan and Romano, A and Costa, Carolina and Filipe, A},
  issn         = {1095-7103},
  language     = {eng},
  month        = {12},
  pages        = {225--232},
  publisher    = {Elsevier},
  series       = {Journal of Colloid and Interface Science},
  title        = {Microrheology of novel cellulose stabilized oil-in-water emulsions},
  url          = {http://dx.doi.org/10.1016/j.jcis.2018.07.043},
  volume       = {531},
  year         = {2018},
}