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Submitted: 28 Mar 2020
Revision: 09 Jun 2020
Accepted: 19 Jun 2020
ePublished: 29 Jun 2020
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Avicenna J Environ Health Eng. 2020;7(1): 14-19.
doi: 10.34172/ajehe.2020.03
  Abstract View: 44
  PDF Download: 56

Original Article

Survey of Magneto-tactic Properties of Escherichia coli Under Static Magnetic Fields

Ghorban Asgari 1 ORCID logo, Ramin Khoshniyat 2* ORCID logo, Mojtaba Moradi Golrokhi 2

1 Social Determinants of Health Research Center, Department of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.
2 Department of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.

Abstract

Some of the microorganisms such as Escherichia coli have the ability to migrate to areas in which the intensity of magnetic fields (MFs) is higher, which is called magnetotactic properties. Magnetotaxis is a process implemented by a group of gram-negative bacteria that involves orienting and coordinating movement in response to magnetic fields. This study was conducted to investigate these properties of Escherichia coli in laboratory conditions. By means of coated wires (30 rounds) placed in two parts of the reactor (with five zones and a volume of 250 mL) and direct current (DC), an intensity of 0.18 mT for 42 minutes has been prepared. The most probable number of E. coli per 100 mL (MPN/100 mL) in each zone of the reactor, before and after exposure, was estimated. According to the results of this study, E. coli has magnetotactic properties, and the mean density of these bacteria in higher MFs (0.18 mT) is higher compared to the other zones in the reactor.
Keywords: MFs, Escherichia Coli, magnetotaxctic properties,
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