Synthesis of silver nanoparticles with antibacterial activity using the lichen Parmotrema praesorediosum

Ropisah Mie, Mohd Wahid Samsudin, Laily B. Din, Azizan Ahmad, Nazlina Ibrahim, Siti Noor Adnalizawati Adnan

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Development of a green chemistry process for the synthesis of silver nanoparticles has become a focus of interest. This would offer numerous benefits, including ecofriendliness and compatibility for biomedical applications. Here we report the synthesis of silver nanoparticles from the reduction of silver nitrate and an aqueous extract of the lichen Parmotrema praesorediosum as a reductant as well as a stabilizer. The physical appearance of these silver nanoparticles was characterized using ultraviolet-visible spectroscopy, electron microscopy, energy-dispersive spectroscopy, and X-ray diffraction techniques. The results show that silver nanoparticles synthesized using P. praesorediosum have an average particle size of 19 nm with a cubic structure. The antibacterial activity of the synthesized silver nanoparticles was tested against eight micro-organisms using the disk diffusion method. The results reveal that silver nanoparticles synthesized using P. praesorediosum have potential antibacterial activity against Gram-negative bacteria.

Original languageEnglish
Pages (from-to)121-127
Number of pages7
JournalInternational Journal of Nanomedicine
Volume9
Issue number1
DOIs
Publication statusPublished - 19 Dec 2013

Fingerprint

Lichens
Silver
Nanoparticles
Spectrum Analysis
Silver Nitrate
Reducing Agents
Ultraviolet visible spectroscopy
Gram-Negative Bacteria
Particle Size
X-Ray Diffraction
Electron microscopy
Energy dispersive spectroscopy
Electron Microscopy
Bacteria
Particle size
Nitrates
X ray diffraction

Keywords

  • Antibacterial activity
  • Lichens
  • Parmotrema praesorediosum
  • Silver nanoparticles

ASJC Scopus subject areas

  • Biophysics
  • Bioengineering
  • Biomaterials
  • Organic Chemistry
  • Drug Discovery

Cite this

Synthesis of silver nanoparticles with antibacterial activity using the lichen Parmotrema praesorediosum. / Mie, Ropisah; Samsudin, Mohd Wahid; Din, Laily B.; Ahmad, Azizan; Ibrahim, Nazlina; Adnan, Siti Noor Adnalizawati.

In: International Journal of Nanomedicine, Vol. 9, No. 1, 19.12.2013, p. 121-127.

Research output: Contribution to journalArticle

Mie, Ropisah ; Samsudin, Mohd Wahid ; Din, Laily B. ; Ahmad, Azizan ; Ibrahim, Nazlina ; Adnan, Siti Noor Adnalizawati. / Synthesis of silver nanoparticles with antibacterial activity using the lichen Parmotrema praesorediosum. In: International Journal of Nanomedicine. 2013 ; Vol. 9, No. 1. pp. 121-127.
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