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Copyright © 2020 Aziz Babapoor et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. https://creativecommons.org/licenses/by/4.0/

Abstract

In this study, a biosensor is designed to remove mercury as a toxic metal contaminant from the soil. The rhamnolipid biosurfactant was used to extract the mercury sorbed to soil to the aqueous phase. An immobilized bioluminescent bacterium (Escherichia coli MC106) with pmerRBPmerlux plasmid is assisted for mercury detection. A significant decrease in luminescence level was observed in a biosensor system containing contaminated soil sample extract. The concentrations of extracting mercury are well correlated with the mercury toxicity data obtained from experimental biosensor systems according to the RBL value. The optimum aeration rate of 20 ml/min was obtained for the biosensor systems. The advantage of such a biosensor is the in situ quantification of mercury as a heavy metal contaminant in soils. Therefore, this system could be proposed as a good biosensor-based alternative for future detection of heavy toxic metals in soils.

Details

Title
Biosensor Design for Detection of Mercury in Contaminated Soil Using Rhamnolipid Biosurfactant and Luminescent Bacteria
Author
Aziz Babapoor 1   VIAFID ORCID Logo  ; Hajimohammadi, Reza 2 ; Seyyed Mohammad Jokar 3 ; Paar, Meysam 1 

 Department of Chemical Engineering, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran 
 Department of Chemical Engineering, Ahar Branch, Islamic Azad University, Ahar, Iran 
 Department of Chemical,Petroleum and Gas Engineering, Shiraz University of Technology, Shiraz, Iran 
Editor
Claudio Cameselle
Publication year
2020
Publication date
2020
Publisher
John Wiley & Sons, Inc.
ISSN
20909063
e-ISSN
20909071
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2467506266
Copyright
Copyright © 2020 Aziz Babapoor et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. https://creativecommons.org/licenses/by/4.0/