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Inactivation of bacterial pathogens under magnetic hyperthermia using Fe3O4-ZnO nanocomposite

DSpace at IIT Bombay

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Title Inactivation of bacterial pathogens under magnetic hyperthermia using Fe3O4-ZnO nanocomposite
 
Creator SINGH, S
BARICK, KC
BAHADUR, D
 
Subject TOXIC METAL-IONS
ANTIBACTERIAL ACTIVITY
ZNO
NANOPARTICLES
THERAPY
MECHANISM
REMOVAL
Water treatment
Fe3O4-ZnO
Nanocomposite
Bacteria
Hyperthermia
 
Description We demonstrate the antibacterial activities of superparamagnetic Fe3O4 embedded porous ZnO nanocomposite (NC) against the Gram-positive, Staphylococcus aureus (S. aureus) and Gram-negative, Escherichia coli (E. coli) bacteria. The chemical interaction between Fe3O4 and ZnO in nanocomposite is evident from X-ray photoelectron spectroscopy (XI'S). The NC exhibits stronger antibacterial activity towards S. aureus than E. colt. Further, antibacterial activity is found to be strongly dependent on the concentration of NC and their incubation time. The Fe3O4-ZnO NC shows excellent heat activated killing of bacteria under AC magnetic field (ACMF) than normal heating. This novel method of killing bacterial pathogens can be a new approach towards the treatment of a variety of microbial infectious diseases. Furthermore, it can be used as highly efficient separable and reusable materials for inhibition of bacterial growth under magnetic field. (C) 2014 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2016-01-15T05:02:54Z
2016-01-15T05:02:54Z
2015
 
Type Article
 
Identifier POWDER TECHNOLOGY, 269,513-519
0032-5910
1873-328X
http://dx.doi.org/10.1016/j.powtec.2014.09.032
http://dspace.library.iitb.ac.in/jspui/handle/100/17825
 
Language en