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New Pickering Emulsions Stabilized by Bacterial Cellulose Nanocrystals

Kalashnikova, Irina, Bizot, Hervé, Cathala, Bernard, Capron, Isabelle·2011·Langmuir

Abstract

We studied oil in water Pickering emulsions stabilized by cellulose nanocrystals obtained by hydrochloric acid hydrolysis of bacterial cellulose. The resulting solid particles, called bacterial cellulose nanocrystals (BCNs), present an elongated shape and low surface charge density, forming a colloidal suspension in water. The BCNs produced proved to stabilize the hexadecane/water interface, promoting monodispersed oil in water droplets around 4 μm in diameter stable for several months. We characterized the emulsion and visualized the particles at the surface of the droplets by scanning electron microscopy (SEM) and calculated the droplet coverage by varying the BCN concentration in the aqueous phase. A 60% coverage limit has been defined, above which very stable, deformable droplets are obtained. The high stability of the more covered droplets was attributed to the particle irreversible adsorption associated with the formation of a 2D network. Due to the sustainability and low environmental impact of cellulose, the BCN based emulsions open opportunities for the development of environmentally friendly new materials.

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Metadata

Authors
Kalashnikova, I., Bizot, H., Cathala, B., & Capron, I.
Venue
Langmuir
Published
2011-05-23
Volume
27
Issue
12
Pages
7471-7479
ISSN
  • 0743-7463 (ISSN-L)
  • 1520-5827
OpenAlex
W2333665666
Cited by
789
References
2
FWCI
11.62
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: New Pickering Emulsions Stabilized by Bacterial Cellulose Nanocrystals. https://app.cochat.ai/papers/10.1021/la200971f
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Kalashnikova, I., Bizot, H., Cathala, B., & Capron, I. (2011). New Pickering Emulsions Stabilized by Bacterial Cellulose Nanocrystals. Langmuir. https://doi.org/10.1021/la200971f

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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