English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/143550
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Antiviral properties of silver nanoparticles against norovirus surrogates and their efficacy in coated polyhydroxyalkanoates systems

AuthorsCastro Mayorga, Jinneth Lorena ; Randazzo, Walter; Fabra, María José ; Lagarón Cabello, José María ; Aznar, Rosa ; Sánchez Moragas, Gloria
KeywordsNoroviruses
Silver nanoparticles
Active packaging
Polyhydroxyalkanoates
Electrospinning
Issue Date26-Jul-2016
PublisherElsevier
CitationLWT-Food Science and Technology (2017) 79: 503-510
AbstractSilver nanoparticles (AgNP) have strong broad-spectrum antimicrobial activity and gained increased attention for the development of AgNP based products, including medical and food applications. Initially, the efficacy of AgNP and silver nitrate (AgNO3) was evaluated for inactivating norovirus surrogates, the feline calicivirus (FCV) and the murine norovirus (MNV). These norovirus surrogates were exposed to AgNO3 and AgNP solutions for 24 h at 25 °C and then analyzed by cell-culture assays. Both AgNP and silver ions significantly decreased FCV and MNV infectivity in a dose-dependent manner between concentrations of 2.1 and 21 mg/L. Furthermore, poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) films were prepared by depositing a coating of thermally post-processed electrospun PHBV18/AgNP fiber mats over compression moulded PHBV3 films. After 24 h exposure at 37 °C and 100% RH, no infectious FCV were recovered when in contact with the AgNP films while MNV titers decreased by 0.86 log. The morphology of the PHBV18 and PHBV18/AgNP fibers studied by SEM showed smooth and continuous fibers in both cases and the EDAX analysis confirmed the homogeneously distribution of AgNP into the coating and onto the PHBV3/PHBV18 layer. This study showed, for the first time, the suitability of the PHBV18/AgNP electrospun coating for antiviral surfaces.
Publisher version (URL)http://dx.doi.org/10.1016/j.lwt.2017.01.065
URIhttp://hdl.handle.net/10261/143550
DOI10.1016/j.lwt.2017.01.065
ISSN0023-6438
Appears in Collections:(IATA) Artículos
Files in This Item:
File Description SizeFormat 
LWT-2017-Castro.pdfArtículo principal201,62 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


This item is licensed under a Creative Commons License Creative Commons