Physical and antimicrobial characterization of self assembled silver nanoparticle/chitosan onto low density polyethylene film as active packaging polymer

Maryam Jokar, Russly Abdul Rahman, Luqman Chuah Abdullah

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Colloidal Silver nanoparticles with a size of 5 nm produced by chemical reduction using poly ethylene glycol (PEG 200). Layers of silver nanoparticles and chitosan were deposited onto low density polyethylene (LDPE) substrate by layer by layer (LBL) self-assembly technique. Silver nanocomposite films were built by sequential dipping of LDPE film in either anionic silver nanoparticles or cationic chitosan. Silver nanoparticles and chitosan led to the formation of nanocomposite films possessing antimicrobial properties with the thickness of 2, 4, 8, 12 and 20 layers. Silver nanocomposite films were characterized by atomic force microscopy (AFM). Thermal, mechanical and barrier properties of LBL deposited nanocomposite films were investigated. Results showed that the LBL deposition of silver nanoparticles and chitosan increased the crystallinity of the composites and also improved mechanical and barrier properties of LDPE film significantly (p
Original languageEnglish
JournalJournal of Nano Research
Volume27
Pages (from-to)53-64
ISSN1662-5250
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • Materials Science (all)
  • Physics and Astronomy (all)
  • Active polymer
  • Chitosan
  • Layer by layer deposition
  • Silver nanocomposite
  • Amorphous carbon
  • Atomic force microscopy
  • Bacteria
  • Deposition
  • Escherichia coli
  • Ethylene glycol
  • Nanocomposite films
  • Nanoparticles
  • Active polymers
  • Anti-microbial activity
  • Anti-microbial properties
  • Colloidal silver nanoparticle
  • Low density polyethylene films
  • Low density polyethylene(LDPE)
  • Silver nanocomposites
  • Silver

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