Microwave assisted antibacterial chitosan-silver nanocomposite films

Gownolla Malegowd Raghavendra, Jeyoung Jung, Dowan kim, Jongchul Seo

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

In the current approach, antibacterial chitosan-silver nanocomposite films were fabricated through microwave irradiation. During the process, by utilizing chitosan as reducing agent, silver nanoparticles were synthesized within 11 min by microwave irradiation. Further, films were fabricated within 90 min. It involved an energy consumption of just 0.146 kWh to synthesize silver nanoparticles. This is many times less than the energy consumed during conventional methods. The silver nanoparticles were examined through UV-vis spectrum and transmission electron microscopy (TEM). The fabricated films were characterized by using scanning electron microscopy coupled with an energy dispersive spectrometer (SEM-EDS), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and contact angle (CA) measurements. The films exhibited antibacterial properties against both Gram-negative micro-organisms (Escherichia coli; E. coli) and Gram-positive micro-organisms (Staphylococcus aureus; S. aureus). In overall, the procedure adopted for fabricating these antibacterial films is environmental friendly, time-saving and energy-saving.

Original languageEnglish
Pages (from-to)281-288
Number of pages8
JournalInternational Journal of Biological Macromolecules
Volume84
DOIs
Publication statusPublished - 2016 Mar 1

Fingerprint

Nanocomposites
Nanocomposite films
Chitosan
Microwaves
Silver
Nanoparticles
Microwave irradiation
Escherichia coli
Staphylococcus aureus
Reducing Agents
Fourier Transform Infrared Spectroscopy
Angle measurement
Transmission Electron Microscopy
Electron Scanning Microscopy
Contact angle
Thermogravimetric analysis
Spectrometers
Energy conservation
Energy utilization
Transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Biochemistry
  • Molecular Biology

Cite this

Raghavendra, Gownolla Malegowd ; Jung, Jeyoung ; kim, Dowan ; Seo, Jongchul. / Microwave assisted antibacterial chitosan-silver nanocomposite films. In: International Journal of Biological Macromolecules. 2016 ; Vol. 84. pp. 281-288.
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Microwave assisted antibacterial chitosan-silver nanocomposite films. / Raghavendra, Gownolla Malegowd; Jung, Jeyoung; kim, Dowan; Seo, Jongchul.

In: International Journal of Biological Macromolecules, Vol. 84, 01.03.2016, p. 281-288.

Research output: Contribution to journalArticle

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