Colloidal Cu nanoparticles/chitosan composite film obtained by microwave heating for food package applications

In this paper, we describe the preparation and characterization of colloidal Cu nanoparticles/chitosan composite film (composite film) by solution-casting technique with microwave heating. Effects of the incorporation of colloidal Cu nanoparticles on structure, thermal behavior, surface, barrier pro...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2009-04, Vol.62 (4), p.511-524
Main Authors: CARDENAS, G, DIZ V, J, MLELEDREZ, M. F, CRUZAT C, C, GARCIA CANCINO, A
Format: Article
Language:English
Subjects:
Applied sciences
Atoms & subatomic particles
Bacteria
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Chitosan
Colloids
Complex Fluids and Microfluidics
Composites
Exact sciences and technology
Forms of application and semi-finished materials
Heating
Light transmission
Microorganisms
Microscopy
Microwave heating
Moisture content
Nanoparticles
Nitrogen
Organic Chemistry
Original Paper
Permeability
Physical Chemistry
Polymer industry, paints, wood
Polymer Sciences
Soft and Granular Matter
Technology of polymers
Thermodynamic properties
Ultraviolet radiation
Water vapor
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Summary:In this paper, we describe the preparation and characterization of colloidal Cu nanoparticles/chitosan composite film (composite film) by solution-casting technique with microwave heating. Effects of the incorporation of colloidal Cu nanoparticles on structure, thermal behavior, surface, barrier properties and light transmission of composite film were investigated. The antimicrobial activity of films against Staphylococcus aureus and Salmonella enterica serovar Typhimurium, were also tested. Incorporation of colloidal Cu nanoparticles on chitosan matrix improved the barrier properties of films, decreasing the oxygen permeability as well as water vapor permeability and increasing the protection against UV light. The composite film was effective in alteration of cell wall and reduction of microbial concentration in the liquid culture for both bacteria tested.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-008-0031-x