Skip to main content

Antimicrobial Membrane Cellulose Acetate Containing Ionic Liquid and Metal Nanoparticles

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

Stable metallic Au(0), Ag(0) and Pt(0) nanoparticle-containing membrane films (20 m thickness) were obtained by combining irregularly shaped nanoparticles of monomodal size distributions (11 ± 1.5 nm Au(0), 8.9 ± 2.1 nm Ag(0) and 2.8 ± 0.4 nm Pt(0)) in the ionic liquid (IL) 1-n-butyl-3-methylimidazolium bis(trifluoromethane sulfonyl)imide (BMI · (NTf)2 with a syrup of cellulose acetate (CA) in acetone. The presence of small and stable Au(0), Ag(0) or Pt(0) nanoparticles induced an augmentation in the CA/IL film surface areas. The addition of the IL to the membrane resulted in an increase of its elasticity and a decrease in its tenacity and toughness, whereas its stress at break was not influenced. High antimicrobial activity was observed in membranes containing Au(0), Ag(0) and Pt(0) metal concentrations as low as 1 mg of metal per 5 g of CA. The CA/IL/nanoparticle combination enhanced the activity and durability of the metal nanoparticles and provided greater antimicrobial activity against E. coli and S. aureus bacteria.

Keywords: ANTIMICROBIAL ACTIVITY; CELLULOSE; IONIC LIQUIDS; NANOPARTICLES

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2011.4117

Publication date: 2011-06-01

More about this publication?
  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more