Electroconductive and antimicrobial composite films of nanocellulose, polypyrrole and silver nanoparticles

Chunlin Xu, Jun Liu, Patrycja Bober, Markus Pesonen, Atte von Wright, Tom Lindfors, Rose-Marie Latonen

Research output: Chapter in Book/Conference proceedingConference contributionScientific

Abstract

Nanocellulose has lately caused a great attention in numerious applcation areas, e.g. organic electronics, biosensors, tissue engineering, etc. owning to its superior mechanical properties. Here, we present a novel approach for fabricating nanocellulose/conducting polymer composites using anionic cellulose nanofibrils as synthesis template and constructing matrix. Thus, polypyrrole was synthesized in the suspension of cellulose nanofibrils via in situ one-step chemical polymerization. Moreover, silver nanoparticles were also introduced during the synthesis process. Flexible and free-standing composite films were prepared from the thus-obtained composite suspension. The composite films showed good mechanical and electrical properties. With incorporation of silver nanoparticles, the films also had strong inhibition effect against the growth of the Gram-positive bacteria, e.g. Staphylococcus aureus. This makes it possible to use the resulting composites in various applications aimed for biomedical treatments and diagnostics.

Original languageUndefined/Unknown
Title of host publication18th International Symposium on Wood, Fibre and Pulp Chemistry (ISWFPC)
EditorsJ. Hell, S. Böhmdorfer, A Potthast, T. Rosenau
PublisherUniversity of Natural Resources and Applied Life Sciences, Vienna (BOKU)
Pages294–297
ISBN (Print)978-3-900932-24-4
Publication statusPublished - 2015
MoE publication typeB3 Non-refereed article in conference proceedings
EventInternational Symposium on Wood, Fiber and Pulping Chemistry - 18th International Symposium on Wood, Fiber and Pulping Chemistry (ISWFPC)
Duration: 9 Sep 201511 Sep 2015

Conference

ConferenceInternational Symposium on Wood, Fiber and Pulping Chemistry
Period09/09/1511/09/15

Keywords

  • Composite
  • Conducting polymer

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