Green Synthesis Methods of CoFe2O4 and Ag-CoFe2O4 Nanoparticles Using Hibiscus Extracts and Their Antimicrobial Potential

The cobalt ferrite (CoFe2O4) and silver-cobalt ferrite (Ag-CoFe2O4) nanoparticles were obtained through self-combustion and wet ferritization methods using aqueous extracts of Hibiscus rosa-sinensis flower and leaf. X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectros...

Full description

Saved in:
Bibliographic Details
Published in:Journal of nanomaterials 2016-01, Vol.2016 (2016), p.1-12
Main Authors: Popa, Marcela, Gradisteanu, Gratiela, Chifiriuc, Mariana Carmen, Nita, Sultana, Stanica, Nicolae, Preda, Silviu, Mocioiu, Oana Catalina, Calderon Moreno, Jose M., Patron, Luminita, Mindru, Ioana, Gingasu, Dana, Dobre, Nicoleta
Format: Article
Language:English
Subjects:
Antimicrobial agents
Cobalt
E coli
Flavonoids
Flowers & plants
Green chemistry
Hazardous materials
Leaves
Methods
Morphology
Nanomaterials
Nitrates
R&D
Research & development
Silver
Studies
Values
Yeast
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The cobalt ferrite (CoFe2O4) and silver-cobalt ferrite (Ag-CoFe2O4) nanoparticles were obtained through self-combustion and wet ferritization methods using aqueous extracts of Hibiscus rosa-sinensis flower and leaf. X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and magnetic measurements were used for the characterization of the obtained oxide powders. The antimicrobial activity of the cobalt ferrite and silver-cobalt ferrite nanoparticles against Gram-positive and Gram-negative bacteria, as well as fungal strains, was investigated by qualitative and quantitative assays. The most active proved to be the Ag-CoFe2O4 nanoparticles, particularly those obtained through self-combustion using hibiscus leaf extract, which exhibited very low minimal inhibitory concentration values (0.031–0.062 mg/mL) against all tested microbial strains, suggesting their potential for the development of novel antimicrobial agents.
ISSN:1687-4110
1687-4129
DOI:10.1155/2016/2106756