Bismuth phosphinate incorporated nanocellulose sheets with antimicrobial and barrier properties for packaging applications

Maisha Maliha, Megan Herdman, Rajini Brammananth, Michael McDonald, Ross Coppel, Melissa Werrett, Philip Andrews, Warren Batchelor

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The incorporation of an organobismuth complex into a nanocellulose matrix to develop a free-standing antimicrobial barrier material was investigated. The non-toxic complex, phenyl bismuth bis(diphenylphosphinato) was used as the additive to impart antimicrobial properties to nanocellulose sheets for the development of paper-based renewable and biodegradable active packaging material. A spraying technique was used to prepare sheets with different loadings of the organobismuth complex and its effects on antimicrobial and barrier properties were studied. Morphological studies of the sheets revealed the overall distribution of the complex throughout the nanocellulose matrix, with occasional clustering behaviour on the surface. Water vapour permeability of the paper sheets increased very slightly with loading of the bismuth complex, but remained in the range acceptable for packaging materials. The physical and mechanical properties of the sheets were also affected by the addition of the bismuth complex in the structure, and hence a trade-off needs to be made between the loading level and the material performance for commercialization. The composite sheets were able to inhibit the growth of bacteria and fungi, including strains of multidrug resistant bacteria. Moreover, the paper showed continued release of the bismuth complex over time with effective lifetime depending on the loading. In summary, this paper describes the preparation and characterization of a sustainable and ecofriendly antimicrobial composite paper, using a poorly soluble bismuth complex dispersed into a nanocellulose matrix, which shows the potential to be used as an active packaging material.

Original languageEnglish
Article number119016
Number of pages12
JournalJournal of Cleaner Production
Volume246
DOIs
Publication statusPublished - 10 Feb 2020

Keywords

  • Antimicrobial
  • Barrier
  • Bismuth
  • Nanocellulose
  • Packaging

Cite this

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title = "Bismuth phosphinate incorporated nanocellulose sheets with antimicrobial and barrier properties for packaging applications",
abstract = "The incorporation of an organobismuth complex into a nanocellulose matrix to develop a free-standing antimicrobial barrier material was investigated. The non-toxic complex, phenyl bismuth bis(diphenylphosphinato) was used as the additive to impart antimicrobial properties to nanocellulose sheets for the development of paper-based renewable and biodegradable active packaging material. A spraying technique was used to prepare sheets with different loadings of the organobismuth complex and its effects on antimicrobial and barrier properties were studied. Morphological studies of the sheets revealed the overall distribution of the complex throughout the nanocellulose matrix, with occasional clustering behaviour on the surface. Water vapour permeability of the paper sheets increased very slightly with loading of the bismuth complex, but remained in the range acceptable for packaging materials. The physical and mechanical properties of the sheets were also affected by the addition of the bismuth complex in the structure, and hence a trade-off needs to be made between the loading level and the material performance for commercialization. The composite sheets were able to inhibit the growth of bacteria and fungi, including strains of multidrug resistant bacteria. Moreover, the paper showed continued release of the bismuth complex over time with effective lifetime depending on the loading. In summary, this paper describes the preparation and characterization of a sustainable and ecofriendly antimicrobial composite paper, using a poorly soluble bismuth complex dispersed into a nanocellulose matrix, which shows the potential to be used as an active packaging material.",
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Bismuth phosphinate incorporated nanocellulose sheets with antimicrobial and barrier properties for packaging applications. / Maliha, Maisha; Herdman, Megan; Brammananth, Rajini; McDonald, Michael; Coppel, Ross; Werrett, Melissa; Andrews, Philip; Batchelor, Warren.

In: Journal of Cleaner Production, Vol. 246, 119016, 10.02.2020.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Maliha, Maisha

AU - Herdman, Megan

AU - Brammananth, Rajini

AU - McDonald, Michael

AU - Coppel, Ross

AU - Werrett, Melissa

AU - Andrews, Philip

AU - Batchelor, Warren

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