In situ grafting of silica nanoparticle precursors with covalently attached bioactive agents to form pva-based materials for sustainable active packaging

Miri Klein; Anat Molad Filossof; Idan Ashur; Sefi Vernick; Michal Natan-Warhaftig; Victor Rodov; Ehud Banin; Elena Poverenov

doi:10.3390/polym13172889

In situ grafting of silica nanoparticle precursors with covalently attached bioactive agents to form pva-based materials for sustainable active packaging

Miri Klein, Anat Molad Filossof, Idan Ashur, Sefi Vernick, Michal Natan-Warhaftig, Victor Rodov, Ehud Banin, Elena Poverenov

The Mina and Everard Goodman Faculty of Life Sciences

Agricultural Research Organization of Israel

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Sustainable antibacterial–antioxidant films were prepared using in situ graftings of silica nanoparticle (SNP) precursors with covalently attached bioactive agents benzoic acid (ba) or curcu-min (cur) on polyvinyl alcohol (PVA). The modified PVA-SNP, PVA-SNP-ba and PVA-SNP-cur films were characterized using spectroscopic, physicochemical and microscopic methods. The prepared films showed excellent antibacterial and antioxidant activity, and increased hydrophobicity providing protection from undesired moisture. The PVA-SNP-ba films completely prevented the growth of the foodborne human pathogen Listeria innocua, whereas PVA-SNP-cur resulted in a 2.5 log reduction of this bacteria. The PVA-SNP-cur and PVA-SNP-ba films showed high antioxidant activity of 15.9 and 14.7 Mm/g TEAC, respectively. The described approach can serve as a generic platform for the formation of PVA-based packaging materials with tailor-made activity tuned by active substituents on silica precursors. Application of such biodegradable films bearing safe bioac-tive agents can be particularly valuable for advanced sustainable packaging materials in food and medicine.

Original language	English
Article number	2889
Journal	Polymers
Volume	13
Issue number	17
DOIs	https://doi.org/10.3390/polym13172889
State	Published - 27 Aug 2021

Bibliographical note

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Funding

Funding: This research was funded by the Ministry of Science and Technology, grant number 421034517.

Funders	Funder number
Ministry of science and technology, Israel	421034517

Keywords

Active package
Antimicrobial
Antioxidant
Polyvinyl alcohol
Silica nanoparticle

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/polym13172889

Cite this

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abstract = "Sustainable antibacterial–antioxidant films were prepared using in situ graftings of silica nanoparticle (SNP) precursors with covalently attached bioactive agents benzoic acid (ba) or curcu-min (cur) on polyvinyl alcohol (PVA). The modified PVA-SNP, PVA-SNP-ba and PVA-SNP-cur films were characterized using spectroscopic, physicochemical and microscopic methods. The prepared films showed excellent antibacterial and antioxidant activity, and increased hydrophobicity providing protection from undesired moisture. The PVA-SNP-ba films completely prevented the growth of the foodborne human pathogen Listeria innocua, whereas PVA-SNP-cur resulted in a 2.5 log reduction of this bacteria. The PVA-SNP-cur and PVA-SNP-ba films showed high antioxidant activity of 15.9 and 14.7 Mm/g TEAC, respectively. The described approach can serve as a generic platform for the formation of PVA-based packaging materials with tailor-made activity tuned by active substituents on silica precursors. Application of such biodegradable films bearing safe bioac-tive agents can be particularly valuable for advanced sustainable packaging materials in food and medicine.",

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AU - Klein, Miri

AU - Filossof, Anat Molad

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AU - Vernick, Sefi

AU - Natan-Warhaftig, Michal

AU - Rodov, Victor

AU - Banin, Ehud

AU - Poverenov, Elena

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AB - Sustainable antibacterial–antioxidant films were prepared using in situ graftings of silica nanoparticle (SNP) precursors with covalently attached bioactive agents benzoic acid (ba) or curcu-min (cur) on polyvinyl alcohol (PVA). The modified PVA-SNP, PVA-SNP-ba and PVA-SNP-cur films were characterized using spectroscopic, physicochemical and microscopic methods. The prepared films showed excellent antibacterial and antioxidant activity, and increased hydrophobicity providing protection from undesired moisture. The PVA-SNP-ba films completely prevented the growth of the foodborne human pathogen Listeria innocua, whereas PVA-SNP-cur resulted in a 2.5 log reduction of this bacteria. The PVA-SNP-cur and PVA-SNP-ba films showed high antioxidant activity of 15.9 and 14.7 Mm/g TEAC, respectively. The described approach can serve as a generic platform for the formation of PVA-based packaging materials with tailor-made activity tuned by active substituents on silica precursors. Application of such biodegradable films bearing safe bioac-tive agents can be particularly valuable for advanced sustainable packaging materials in food and medicine.

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In situ grafting of silica nanoparticle precursors with covalently attached bioactive agents to form pva-based materials for sustainable active packaging

Abstract

Bibliographical note

Funding

Keywords

UN SDGs

Access to Document

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