A graphene oxide facilitated a highly porous and effective antibacterial regenerated cellulose membrane containing stabilized silver nanoparticles

Soon Wei Chook, Chin Hua Chia, Sarani Zakaria, Mohd. Khan Ayob, Nay Ming Huang, Hui Min Neoh, Meng He, Lina Zhang, A. Rahman A. Jamal

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Regenerated nanocomposite cellulose membranes embedded with silver nanoparticles (AgNP) and AgNP-graphene oxide (AgGO) were prepared in this study. The as-synthesized AgNP and AgGO were added respectively to a cellulose solution that was prepared by dissolving cellulose in a precooled NaOH/urea (NU) solvent. The solution mixtures were further regenerated into nanocomposite membranes through coagulation in an acidic solution. UV-Vis and TEM results revealed the improved stability of the AgGO compared to that of the AgNP in NU solutions. As revealed by FESEM, the AgGO nanocomposite membrane possessed a more porous structure than a membrane containing AgNP. Antibacterial tests demonstrated that the cellulose membrane of AgGO inhibited the growth of both Staphylococcus aureus and Escherichia coli more effectively than the AgNP nanocomposite membrane, with a lower concentration of AgGO. This work provides a proven and effective method to prepare novel functional cellulose membranes with antibacterial properties, thus broadening the applications of cellulose.

Original languageEnglish
Pages (from-to)4261-4270
Number of pages10
JournalCellulose
Volume21
Issue number6
DOIs
Publication statusPublished - 6 Nov 2014

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Silver
Cellulose
Oxides
Graphene
Nanoparticles
Membranes
Nanocomposites
Urea
Coagulation
Escherichia coli
Transmission electron microscopy

Keywords

  • Antibacterial
  • Cellulose nanocomposite membrane
  • Graphene oxide
  • Silver nanoparticles

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

A graphene oxide facilitated a highly porous and effective antibacterial regenerated cellulose membrane containing stabilized silver nanoparticles. / Chook, Soon Wei; Chia, Chin Hua; Zakaria, Sarani; Ayob, Mohd. Khan; Huang, Nay Ming; Neoh, Hui Min; He, Meng; Zhang, Lina; A. Jamal, A. Rahman.

In: Cellulose, Vol. 21, No. 6, 06.11.2014, p. 4261-4270.

Research output: Contribution to journalArticle

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AU - Chia, Chin Hua

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AU - Ayob, Mohd. Khan

AU - Huang, Nay Ming

AU - Neoh, Hui Min

AU - He, Meng

AU - Zhang, Lina

AU - A. Jamal, A. Rahman

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