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Stable Cellulose Nanofibril Microcapsules from Pickering Emulsion Templates

Shi, Hui ; Zakir Hossain, Kazi M. ; Califano, Davide ; Callaghan, Ciaran ; Ekanem, Ekanem E. ; Scott, Janet L. ; Mattia, Davide and Edler, Karen J. LU orcid (2022) In Langmuir 38(11). p.3370-3379
Abstract

Electrostatic attractions are essential in any complex formation between the nanofibrils of the opposite charge for a specific application, such as microcapsule production. Here, we used cationized cellulose nanofibril (CCNF)-stabilized Pickering emulsions (PEs) as templates, and the electrostatic interactions were induced by adding oxidized cellulose nanofibrils (OCNFs) at the oil-water interface to form microcapsules (MCs). The oppositely charged cellulose nanofibrils enhanced the solidity of interfaces, allowing the encapsulation of Nile red (NR) in sunflower oil droplets. Microcapsules exhibited a low and controlled release of NR at room temperature. Furthermore, membrane emulsification was employed to scale up the preparation of... (More)

Electrostatic attractions are essential in any complex formation between the nanofibrils of the opposite charge for a specific application, such as microcapsule production. Here, we used cationized cellulose nanofibril (CCNF)-stabilized Pickering emulsions (PEs) as templates, and the electrostatic interactions were induced by adding oxidized cellulose nanofibrils (OCNFs) at the oil-water interface to form microcapsules (MCs). The oppositely charged cellulose nanofibrils enhanced the solidity of interfaces, allowing the encapsulation of Nile red (NR) in sunflower oil droplets. Microcapsules exhibited a low and controlled release of NR at room temperature. Furthermore, membrane emulsification was employed to scale up the preparation of microcapsules with sunflower oil (SFO) encapsulated by CCNF/OCNF complex networks.

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author
; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Langmuir
volume
38
issue
11
pages
10 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85126602783
  • pmid:35261240
ISSN
0743-7463
DOI
10.1021/acs.langmuir.1c03025
language
English
LU publication?
no
additional info
Publisher Copyright: © 2022 American Chemical Society. All rights reserved.
id
6bbc8cd4-245c-4bbb-87a6-961a27c83fa9
date added to LUP
2022-07-12 13:59:37
date last changed
2024-08-07 19:04:43
@article{6bbc8cd4-245c-4bbb-87a6-961a27c83fa9,
  abstract     = {{<p>Electrostatic attractions are essential in any complex formation between the nanofibrils of the opposite charge for a specific application, such as microcapsule production. Here, we used cationized cellulose nanofibril (CCNF)-stabilized Pickering emulsions (PEs) as templates, and the electrostatic interactions were induced by adding oxidized cellulose nanofibrils (OCNFs) at the oil-water interface to form microcapsules (MCs). The oppositely charged cellulose nanofibrils enhanced the solidity of interfaces, allowing the encapsulation of Nile red (NR) in sunflower oil droplets. Microcapsules exhibited a low and controlled release of NR at room temperature. Furthermore, membrane emulsification was employed to scale up the preparation of microcapsules with sunflower oil (SFO) encapsulated by CCNF/OCNF complex networks.</p>}},
  author       = {{Shi, Hui and Zakir Hossain, Kazi M. and Califano, Davide and Callaghan, Ciaran and Ekanem, Ekanem E. and Scott, Janet L. and Mattia, Davide and Edler, Karen J.}},
  issn         = {{0743-7463}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{11}},
  pages        = {{3370--3379}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Langmuir}},
  title        = {{Stable Cellulose Nanofibril Microcapsules from Pickering Emulsion Templates}},
  url          = {{http://dx.doi.org/10.1021/acs.langmuir.1c03025}},
  doi          = {{10.1021/acs.langmuir.1c03025}},
  volume       = {{38}},
  year         = {{2022}},
}