Effects of exposure to mobile phone induced-electromagnetic field on Staphylococcus aureus / Mohd Saufee Al Firdaus Mohd Ismail

Effects of electromagnetic (EMF) field on microorganisms related to human had caught many attentions in line with the development and usage of new technology worldwide. The closest EMF inducer to human nowadays appeared to be mobile phones. Staphylococcus aureus (SA) had been reported as both a majo...

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Main Author:	Mohd Ismail, Mohd Saufee Al Firdaus
Format:	Thesis
Language:	English
Published:	2011
Subjects:	QR Microbiology Electromagnetic fields
Online Access:	https://ir.uitm.edu.my/id/eprint/72176/1/72176.pdf
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id	my-uitm-ir.72176
record_format	uketd_dc
spelling	my-uitm-ir.721762024-01-05T02:52:54Z Effects of exposure to mobile phone induced-electromagnetic field on Staphylococcus aureus / Mohd Saufee Al Firdaus Mohd Ismail 2011 Mohd Ismail, Mohd Saufee Al Firdaus QR Microbiology Electromagnetic fields Effects of electromagnetic (EMF) field on microorganisms related to human had caught many attentions in line with the development and usage of new technology worldwide. The closest EMF inducer to human nowadays appeared to be mobile phones. Staphylococcus aureus (SA) had been reported as both a major culprit of diseases and a natural protective barrier (in the ear) to human. To date, knowledge on phenotypical changes of S. aureus exposed to EMF has not been documented in detail. The aim of this study was to investigate the effects imposed by EMF of a mobile phone on the phenotypic characteristics of S. aureus. Two conditions of radiation, standby-mode and on-call mode, at four different durations, 15, 30, 45 and 60 minutes, were executed. The effects of these conditions on the radiated S. aureus were evaluated based on comparisons made with the non-radiated S. aureus. The radiated S. aureus was studied on the viability and changes in growth pattern; morphology differences; biochemical reactivity level; the deviation of antimicrobial sensitivity and biofilm production in comparison to non-radiated strains. The viability study had shown that growth of S. aureus was enhanced under the standby condition while the on-call condition, growth was suppressed. These two outcomes were influenced by the differences in the strength and duration of exposure of the EMF. No change in the growth curve pattern was observed for the irradiated S. aureus. The morphology of the S. aureus when viewed under direct light and scanning electron microscopes had showed that the shape and arrangement of the organism was highly preserved. The biochemical properties and antimicrobial sensitivity of S. aureus was not affected while the quantification of biofilm had shown a slight deviation in the glycocalyx production compared to normal. It is postulated that the complexity of the cell wall is one of the major contributors to the compensatory mechanism of adaption of the survived cells. 2011 Thesis https://ir.uitm.edu.my/id/eprint/72176/ https://ir.uitm.edu.my/id/eprint/72176/1/72176.pdf text en public degree Universiti Teknologi MARA (UiTM) Faculty of Medicine Mohd Zain, Zaini
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Mohd Zain, Zaini
topic	QR Microbiology Electromagnetic fields
spellingShingle	QR Microbiology Electromagnetic fields Mohd Ismail, Mohd Saufee Al Firdaus Effects of exposure to mobile phone induced-electromagnetic field on Staphylococcus aureus / Mohd Saufee Al Firdaus Mohd Ismail
description	Effects of electromagnetic (EMF) field on microorganisms related to human had caught many attentions in line with the development and usage of new technology worldwide. The closest EMF inducer to human nowadays appeared to be mobile phones. Staphylococcus aureus (SA) had been reported as both a major culprit of diseases and a natural protective barrier (in the ear) to human. To date, knowledge on phenotypical changes of S. aureus exposed to EMF has not been documented in detail. The aim of this study was to investigate the effects imposed by EMF of a mobile phone on the phenotypic characteristics of S. aureus. Two conditions of radiation, standby-mode and on-call mode, at four different durations, 15, 30, 45 and 60 minutes, were executed. The effects of these conditions on the radiated S. aureus were evaluated based on comparisons made with the non-radiated S. aureus. The radiated S. aureus was studied on the viability and changes in growth pattern; morphology differences; biochemical reactivity level; the deviation of antimicrobial sensitivity and biofilm production in comparison to non-radiated strains. The viability study had shown that growth of S. aureus was enhanced under the standby condition while the on-call condition, growth was suppressed. These two outcomes were influenced by the differences in the strength and duration of exposure of the EMF. No change in the growth curve pattern was observed for the irradiated S. aureus. The morphology of the S. aureus when viewed under direct light and scanning electron microscopes had showed that the shape and arrangement of the organism was highly preserved. The biochemical properties and antimicrobial sensitivity of S. aureus was not affected while the quantification of biofilm had shown a slight deviation in the glycocalyx production compared to normal. It is postulated that the complexity of the cell wall is one of the major contributors to the compensatory mechanism of adaption of the survived cells.
format	Thesis
qualification_level	Bachelor degree
author	Mohd Ismail, Mohd Saufee Al Firdaus
author_facet	Mohd Ismail, Mohd Saufee Al Firdaus
author_sort	Mohd Ismail, Mohd Saufee Al Firdaus
title	Effects of exposure to mobile phone induced-electromagnetic field on Staphylococcus aureus / Mohd Saufee Al Firdaus Mohd Ismail
title_short	Effects of exposure to mobile phone induced-electromagnetic field on Staphylococcus aureus / Mohd Saufee Al Firdaus Mohd Ismail
title_full	Effects of exposure to mobile phone induced-electromagnetic field on Staphylococcus aureus / Mohd Saufee Al Firdaus Mohd Ismail
title_fullStr	Effects of exposure to mobile phone induced-electromagnetic field on Staphylococcus aureus / Mohd Saufee Al Firdaus Mohd Ismail
title_full_unstemmed	Effects of exposure to mobile phone induced-electromagnetic field on Staphylococcus aureus / Mohd Saufee Al Firdaus Mohd Ismail
title_sort	effects of exposure to mobile phone induced-electromagnetic field on staphylococcus aureus / mohd saufee al firdaus mohd ismail
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Medicine
publishDate	2011
url	https://ir.uitm.edu.my/id/eprint/72176/1/72176.pdf
_version_	1794191888662659072

Effects of exposure to mobile phone induced-electromagnetic field on Staphylococcus aureus / Mohd Saufee Al Firdaus Mohd Ismail

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