Abstract
Nanoparticles as antimicrobial agents are a novel field in nanomedicine and nanobiotechnology. Unlike many investigations about antimicrobial effects of silver nanoparticles, few experiments have been conducted about the impact of iron-oxide nanoparticles on microorganisms. In the current paper, we have synthesized and characterized amino acid (L-arginine and L-lysine)-coated magnetite nanoparticles and evaluated the effects of these particles on a pathogen strain of Listeria monocytogenes. Primary antibacterial tests were done by the microdilution method and for more investigation the effects of nanoparticles on the growth curve of L. monocytogenes were analyzed by a microbiological analyzer. We found that, in low concentrations (below 20 μg/ mL), L. monocytogenes can benefit from magnetite nanoparticles for more growth, probably as an iron source, but as concentration increases gradual bacteriostatic effects would appear and at 40 μg/mL magnetite nanoparticles have a significant bacteriostatic effect.
Keywords: Amino acid, antibacterial, antimicrobial, iron oxide nanoparticles, L-arginine, L-lysine, Listeria monocytogenes, magnetite nanoparticles
Current Nanoscience
Title:Synthesis, Characterization and Anti-Listeria monocytogenes Effect of Amino Acid Coated Magnetite Nanoparticles
Volume: 8 Issue: 6
Author(s): Alireza Ebrahiminezhad, Soodabeh Davaran, Sara Rasoul-Amini, Jaleh Barar, Mehdi Moghadam and Younes Ghasemi
Affiliation:
Keywords: Amino acid, antibacterial, antimicrobial, iron oxide nanoparticles, L-arginine, L-lysine, Listeria monocytogenes, magnetite nanoparticles
Abstract: Nanoparticles as antimicrobial agents are a novel field in nanomedicine and nanobiotechnology. Unlike many investigations about antimicrobial effects of silver nanoparticles, few experiments have been conducted about the impact of iron-oxide nanoparticles on microorganisms. In the current paper, we have synthesized and characterized amino acid (L-arginine and L-lysine)-coated magnetite nanoparticles and evaluated the effects of these particles on a pathogen strain of Listeria monocytogenes. Primary antibacterial tests were done by the microdilution method and for more investigation the effects of nanoparticles on the growth curve of L. monocytogenes were analyzed by a microbiological analyzer. We found that, in low concentrations (below 20 μg/ mL), L. monocytogenes can benefit from magnetite nanoparticles for more growth, probably as an iron source, but as concentration increases gradual bacteriostatic effects would appear and at 40 μg/mL magnetite nanoparticles have a significant bacteriostatic effect.
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Cite this article as:
Ebrahiminezhad Alireza, Davaran Soodabeh, Rasoul-Amini Sara, Barar Jaleh, Moghadam Mehdi and Ghasemi Younes, Synthesis, Characterization and Anti-Listeria monocytogenes Effect of Amino Acid Coated Magnetite Nanoparticles, Current Nanoscience 2012; 8 (6) . https://dx.doi.org/10.2174/157341312803989178
DOI https://dx.doi.org/10.2174/157341312803989178 |
Print ISSN 1573-4137 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6786 |
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