Electrostatic assembly of Ag nanoparticles onto nanofibrillated cellulose for antibacterial paper products
authors Martins, NCT; Freire, CSR; Pinto, RJB; Fernandes, SCM; Neto, CP; Silvestre, AJD; Causio, J; Baldi, G; Sadocco, P; Trindade, T
nationality International
journal CELLULOSE
author keywords Nanofibrillated cellulose; Silver colloids; Nanocomposites; Paper coating; Antibacterial activity
keywords SILVER NANOPARTICLES; ANTIMICROBIAL AGENT; NANOFIBERS; FIBERS; NANOCOMPOSITES; REINFORCEMENT; BACTERIAL; CHITOSAN; FIBRILS
abstract Nanofibrillated cellulose offers new technological solutions for the development of paper products. Here, composites of nanofibrillated cellulose (NFC) and Ag nanoparticles (NP) were prepared for the first time via the electrostatic assembly of Ag NP (aqueous colloids) onto NFC. Distinct polyelectrolytes have been investigated as macromolecular linkers in order to evaluate their effects on the building-up of Ag modified NFC and also on the final properties of the NFC/Ag composite materials. The NFC/Ag nanocomposites were first investigated for their antibacterial properties towards S. aureus and K. pneumoniae microorganisms as compared to NFC modified by polyelectrolytes linkers without Ag. Subsequently, the antibacterial NFC/Ag nanocomposites were used as fillers in starch based coating formulations for Eucalyptus globulus-based paper sheets. The potential of this approach to produce antimicrobial paper products will be discussed on the basis of complementary optical, air barrier and mechanical data.
publisher SPRINGER
issn 0969-0239
year published 2012
volume 19
issue 4
beginning page 1425
ending page 1436
digital object identifier (doi) 10.1007/s10570-012-9713-5
web of science category Materials Science, Paper & Wood; Materials Science, Textiles; Polymer Science
subject category Materials Science; Polymer Science
unique article identifier WOS:000305236900033
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journal analysis (jcr 2017):
journal impact factor 3.809
5 year journal impact factor 4.120
category normalized journal impact factor percentile 94.489
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