Files and links (1)
CC BY V4.0, Open Access
Journal article
Eco-Friendly Fungal Chitosan-Silica Dual-Shell Microcapsules with Tailored Mechanical and Barrier Properties for Potential Consumer Product Applications
ACS omega, Vol.9, pp.28385-28396
2024
Abstract
Commercial perfume microcapsules are becoming popular across the globe to fulfill consumers’ demands. However, most of microcapsules rely on synthetic polymers and/or animal-sourced ingredients to form the shells. Therefore, replacement of the shell materials is imperative to minimize environmental microplastic pollution, as well as to meeting peoples’ needs, religious beliefs, and lifestyles. Herein, we report a methodology to fabricate environmentally benign dual-shell (fungal chitosan-SiO2) microcapsules laden with fragrance oil (hexyl salicylate). Anionically stabilized oil droplets were coated with fungal chitosan via interfacial electrostatic interactions at pH 2, which were then covered by an inorganic coating of SiO2 produced via external alkaline mineralization of sodium silicate. Core–shell microcapsules with a spherical morphology were achieved. Under compression, dual-shell chitosan-SiO2 microcapsules yielded a mean nominal rupture stress of 3.0 ± 0.2 MPa, which was significantly higher than that of single-shell microcapsules (1.7 ± 0.2 MPa). After 20 days in neutral pH water, only ∼2.5% of the oil was released from dual-shell microcapsules, while single-shell microcapsules cumulatively released more than 10%. These findings showed that the additional SiO2 coating significantly enhanced both mechanical and barrier properties of microcapsules, which may be appealing for multiple commercial applications, including cosmetics and detergents.
Details
- Title
- Eco-Friendly Fungal Chitosan-Silica Dual-Shell Microcapsules with Tailored Mechanical and Barrier Properties for Potential Consumer Product Applications
- Authors/Creators
- Daniele Baiocco - University of BirminghamMohammed Al-Sharabi - University of CambridgeBenjamin Lobel - University of LeedsOlivier J. Cayre - University of LeedsAlexander F. Routh - University of CambridgeZhibing Zhang - University of Birmingham
- Publication Details
- ACS omega, Vol.9, pp.28385-28396
- Publisher
- ACS Publications
- Identifiers
- 991005681669507891
- Copyright
- © 2024 The Authors
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
Metrics
2 File views/ downloads
15 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- Citation topics
- 2 Chemistry
- 2.53 Polymers & Macromolecules
- 2.53.2046 Pickering Emulsions
- Web Of Science research areas
- Chemistry, Multidisciplinary
- ESI research areas
- Chemistry