Effective immobilization of silver nanoparticles on a regenerated cellulose-chitosan composite membrane and its antibacterial activity

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

An antibacterial chitosan-cellulose composite membrane, containing silver nanoparticles (AgNPs), was fabricated by coagulating a cellulose solution in a chitosan solution, followed by the in situ synthesis of AgNPs on the produced membrane. By adjusting the concentration of chitosan (0-2.5%, w/v) in acetic acid coagulating solution, various cellulose-chitosan membranes with different chitosan contents were produced, which then served as substrates for the in situ synthesis and immobilization of AgNPs via a microwave-assisted approach. The amount of AgNPs deposited on the membrane was measured and found to increase with an increasing in the chitosan content on the membrane. Electron micrographs of the membranes revealed entanglement of chitosan on the membranes structure, whereas AgNPs were deposited on the membrane surfaces. In addition, the surface roughness of the membrane increased as a result of the increase of chitosan and AgNPs on the membrane surfaces. Consequently, the membranes exhibited an improved antibacterial activity against Staphylococcus aureus and Escherichia coli as the AgNPs content increased. In conclusion, this study demonstrated a successful green approach for preparing a nanocomposite membrane of cellulose-chitosan-AgNPs with strong antibacterial activities.

Original languageEnglish
Pages (from-to)5061-5065
Number of pages5
JournalNew Journal of Chemistry
Volume41
Issue number12
DOIs
Publication statusPublished - 2017

Fingerprint

Composite membranes
Chitosan
Silver
Cellulose
Nanoparticles
Membranes
Membrane structures
Acetic acid
Acetic Acid
Escherichia coli
Nanocomposites
Surface roughness
Microwaves
Electrons

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

Cite this

@article{0eadd0b2191b478d8cc4156f96c99938,
title = "Effective immobilization of silver nanoparticles on a regenerated cellulose-chitosan composite membrane and its antibacterial activity",
abstract = "An antibacterial chitosan-cellulose composite membrane, containing silver nanoparticles (AgNPs), was fabricated by coagulating a cellulose solution in a chitosan solution, followed by the in situ synthesis of AgNPs on the produced membrane. By adjusting the concentration of chitosan (0-2.5{\%}, w/v) in acetic acid coagulating solution, various cellulose-chitosan membranes with different chitosan contents were produced, which then served as substrates for the in situ synthesis and immobilization of AgNPs via a microwave-assisted approach. The amount of AgNPs deposited on the membrane was measured and found to increase with an increasing in the chitosan content on the membrane. Electron micrographs of the membranes revealed entanglement of chitosan on the membranes structure, whereas AgNPs were deposited on the membrane surfaces. In addition, the surface roughness of the membrane increased as a result of the increase of chitosan and AgNPs on the membrane surfaces. Consequently, the membranes exhibited an improved antibacterial activity against Staphylococcus aureus and Escherichia coli as the AgNPs content increased. In conclusion, this study demonstrated a successful green approach for preparing a nanocomposite membrane of cellulose-chitosan-AgNPs with strong antibacterial activities.",
author = "Chook, {Soon Wei} and Chia, {Chin Hua} and Sarani Zakaria and Neoh, {Hui Min} and {A. Jamal}, {A. Rahman}",
year = "2017",
doi = "10.1039/c7nj00319f",
language = "English",
volume = "41",
pages = "5061--5065",
journal = "New Journal of Chemistry",
issn = "1144-0546",
publisher = "Royal Society of Chemistry",
number = "12",

}

TY - JOUR

T1 - Effective immobilization of silver nanoparticles on a regenerated cellulose-chitosan composite membrane and its antibacterial activity

AU - Chook, Soon Wei

AU - Chia, Chin Hua

AU - Zakaria, Sarani

AU - Neoh, Hui Min

AU - A. Jamal, A. Rahman

PY - 2017

Y1 - 2017

N2 - An antibacterial chitosan-cellulose composite membrane, containing silver nanoparticles (AgNPs), was fabricated by coagulating a cellulose solution in a chitosan solution, followed by the in situ synthesis of AgNPs on the produced membrane. By adjusting the concentration of chitosan (0-2.5%, w/v) in acetic acid coagulating solution, various cellulose-chitosan membranes with different chitosan contents were produced, which then served as substrates for the in situ synthesis and immobilization of AgNPs via a microwave-assisted approach. The amount of AgNPs deposited on the membrane was measured and found to increase with an increasing in the chitosan content on the membrane. Electron micrographs of the membranes revealed entanglement of chitosan on the membranes structure, whereas AgNPs were deposited on the membrane surfaces. In addition, the surface roughness of the membrane increased as a result of the increase of chitosan and AgNPs on the membrane surfaces. Consequently, the membranes exhibited an improved antibacterial activity against Staphylococcus aureus and Escherichia coli as the AgNPs content increased. In conclusion, this study demonstrated a successful green approach for preparing a nanocomposite membrane of cellulose-chitosan-AgNPs with strong antibacterial activities.

AB - An antibacterial chitosan-cellulose composite membrane, containing silver nanoparticles (AgNPs), was fabricated by coagulating a cellulose solution in a chitosan solution, followed by the in situ synthesis of AgNPs on the produced membrane. By adjusting the concentration of chitosan (0-2.5%, w/v) in acetic acid coagulating solution, various cellulose-chitosan membranes with different chitosan contents were produced, which then served as substrates for the in situ synthesis and immobilization of AgNPs via a microwave-assisted approach. The amount of AgNPs deposited on the membrane was measured and found to increase with an increasing in the chitosan content on the membrane. Electron micrographs of the membranes revealed entanglement of chitosan on the membranes structure, whereas AgNPs were deposited on the membrane surfaces. In addition, the surface roughness of the membrane increased as a result of the increase of chitosan and AgNPs on the membrane surfaces. Consequently, the membranes exhibited an improved antibacterial activity against Staphylococcus aureus and Escherichia coli as the AgNPs content increased. In conclusion, this study demonstrated a successful green approach for preparing a nanocomposite membrane of cellulose-chitosan-AgNPs with strong antibacterial activities.

UR - http://www.scopus.com/inward/record.url?scp=85021969947&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85021969947&partnerID=8YFLogxK

U2 - 10.1039/c7nj00319f

DO - 10.1039/c7nj00319f

M3 - Article

AN - SCOPUS:85021969947

VL - 41

SP - 5061

EP - 5065

JO - New Journal of Chemistry

JF - New Journal of Chemistry

SN - 1144-0546

IS - 12

ER -