Microbial-Physical Synthesis of Fe and Fe3O4 Magnetic Nanoparticles Using Aspergillus niger YESM1 and Supercritical Condition of Ethanol

Authors

Mai Abdeen, Alexandria University
Soraya Sabry, Alexandria University
Hanan Ghozlan, Alexandria University
Ahmed A. El-Gendy, Virginia Commonwealth University, National Institute for StandardsFollow
Everett E. Carpenter, Virginia Commonwealth University

Document Type

Article

Original Publication Date

2016

Journal/Book/Conference Title

Journal of Nanomaterials

Volume

2016

DOI of Original Publication

10.1155/2016/9174891

Comments

Originally published at http://dx.doi.org/10.1155/2016/9174891

Date of Submission

June 2017

Abstract

Magnetic Fe and Fe3O4 (magnetite) nanoparticles are successfully synthesized using Aspergillus niger YESM 1 and supercritical condition of liquids. Aspergillus niger is used for decomposition of FeSO4 and FeCl3 to FeS and Fe2O3, respectively. The produced particles are exposed to supercritical condition of ethanol for 1 hour at 300∘ C and pressure of 850 psi. The phase structure and the morphology measurements yield pure iron and major Fe3O4 spherical nanoparticles with average size of 18 and 50 nm, respectively. The crystal size amounts to 9 nm for Fe and 8 nm for Fe3O4. The magnetic properties are measured to exhibit superparamagneticand ferromagnetic-like behaviors for Fe and Fe3O4 nanoparticles, respectively. The saturation magnetization amounts to 112 and 68 emu/g for Fe and Fe3O4, respectively. The obtained results open new route for using the biophysical method for large-scale production of highly magnetic nanoparticles to be used for biomedical applications.

Rights

Copyright © 2016 Mai Abdeen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Is Part Of

VCU Chemistry Publications