Issue 5, 2019

Synthesis of silver nanoparticles using Fagonia cretica and their antimicrobial activities

Abstract

Silver nanoparticles (NPs) were synthesized using an efficient bioreducing agent from Fagonia cretica extract having the advantage of eco-friendliness over chemical and physical methods. The sharp color change and appearance of representative absorption peaks in the UV-visible spectra confirm the quick reduction of the Ag salt and evolution of Ag NPs. Morphological and structural aspects showed that the resulting Ag NPs are highly crystalline with an average size of 16 nm. Furthermore, compositional analysis of the extract confirmed the existence of active bioreducing and stabilizing agents in the Fagonia cretica extract. Furthermore, various concentrations of AgNO3 and the Fagonia cretica extract were employed to obtain a higher yield with better stability of Ag NPs. The resulting Ag NPs showed effective antibacterial activity against Proteus vulgaris, Escherichia coli, and Klebsiella pneumoniae. It is found that the Ag NPs induce maximum production of reactive oxygen species (ROS) in Proteus vulgaris as compared to Escherichia coli and Klebsiella pneumoniae which induce cell toxicity, while ROS production in the presence of Ag NPs is 30% higher than that in the presence of only the plant extract and control in all three bacterial strains. Thus, present findings show that plant extracts can be a useful natural resource to prepare functional nanomaterials for targeted applications especially in the field of biotechnology.

Graphical abstract: Synthesis of silver nanoparticles using Fagonia cretica and their antimicrobial activities

Supplementary files

Article information

Article type
Communication
Submitted
12 nóv. 2018
Accepted
03 des. 2018
First published
04 des. 2018
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2019,1, 1707-1713

Synthesis of silver nanoparticles using Fagonia cretica and their antimicrobial activities

H. Zulfiqar, A. Zafar, M. N. Rasheed, Z. Ali, K. Mehmood, A. Mazher, M. Hasan and N. Mahmood, Nanoscale Adv., 2019, 1, 1707 DOI: 10.1039/C8NA00343B

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