An electrochemical sensing approach for scouting microbial chemolithotrophic metabolisms
The present study was aimed to test an electrochemical sensing approach for the detection of an active chemolithotrophic metabolism (and therefore the presence of chemolithotrophic microorganisms) by using the corrosion of pyrite by Acidithiobacillus ferrooxidans as a model. Different electrochemica...
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todo:paper_15675394_v123_n_p125_Saavedra2023-10-03T16:26:38Z An electrochemical sensing approach for scouting microbial chemolithotrophic metabolisms Saavedra, A. Figueredo, F. Cortón, E. Abrevaya, X.C. Acidithiobacillus ferrooxidans Biomining In-situ life detection Microbiologically-induced corrosion Pyrite mineral Electrochemical sensors Metabolism Pyrites Scanning electron microscopy Acidithiobacillus ferrooxidans Biomining Electrochemical parameters Electrochemical sensing Electrochemical techniques In-situ life detection Microbiologically induced corrosion Voltammetric studies Corrosion ferrous ion pyrite iron sulfide Acidithiobacillus ferrooxidans analytic method Article bacterial growth bacterium adherence chemolithoautotroph controlled study cyclic potentiometry electrochemistry microbial corrosion microbial metabolism nonhuman pH scanning electron microscopy Acidithiobacillus chemistry corrosion culture medium cytology devices electrochemical analysis electrode growth, development and aging metabolism Acidithiobacillus Bacterial Adhesion Corrosion Culture Media Electrochemical Techniques Electrodes Hydrogen-Ion Concentration Iron Sulfides The present study was aimed to test an electrochemical sensing approach for the detection of an active chemolithotrophic metabolism (and therefore the presence of chemolithotrophic microorganisms) by using the corrosion of pyrite by Acidithiobacillus ferrooxidans as a model. Different electrochemical techniques were combined with adhesion studies and scanning electron microscopy (SEM). The experiments were performed in presence or absence of A. ferrooxidans and without or with ferrous iron in the culture medium (0 and 0.5 g L−1, respectively). Electrochemical parameters were in agreement with voltammetric studies and SEM showing that it is possible to distinguish between an abiotically-induced corrosion process (AIC) and a microbiologically-induced corrosion process (MIC). The results show that our approach not only allows the detection of chemolithotrophic activity of A. ferrooxidans but also can characterize the corrosion process. This may have different kind of applications, from those related to biomining to life searching missions in other planetary bodies. © 2018 Elsevier B.V. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15675394_v123_n_p125_Saavedra |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Acidithiobacillus ferrooxidans Biomining In-situ life detection Microbiologically-induced corrosion Pyrite mineral Electrochemical sensors Metabolism Pyrites Scanning electron microscopy Acidithiobacillus ferrooxidans Biomining Electrochemical parameters Electrochemical sensing Electrochemical techniques In-situ life detection Microbiologically induced corrosion Voltammetric studies Corrosion ferrous ion pyrite iron sulfide Acidithiobacillus ferrooxidans analytic method Article bacterial growth bacterium adherence chemolithoautotroph controlled study cyclic potentiometry electrochemistry microbial corrosion microbial metabolism nonhuman pH scanning electron microscopy Acidithiobacillus chemistry corrosion culture medium cytology devices electrochemical analysis electrode growth, development and aging metabolism Acidithiobacillus Bacterial Adhesion Corrosion Culture Media Electrochemical Techniques Electrodes Hydrogen-Ion Concentration Iron Sulfides |
| spellingShingle |
Acidithiobacillus ferrooxidans Biomining In-situ life detection Microbiologically-induced corrosion Pyrite mineral Electrochemical sensors Metabolism Pyrites Scanning electron microscopy Acidithiobacillus ferrooxidans Biomining Electrochemical parameters Electrochemical sensing Electrochemical techniques In-situ life detection Microbiologically induced corrosion Voltammetric studies Corrosion ferrous ion pyrite iron sulfide Acidithiobacillus ferrooxidans analytic method Article bacterial growth bacterium adherence chemolithoautotroph controlled study cyclic potentiometry electrochemistry microbial corrosion microbial metabolism nonhuman pH scanning electron microscopy Acidithiobacillus chemistry corrosion culture medium cytology devices electrochemical analysis electrode growth, development and aging metabolism Acidithiobacillus Bacterial Adhesion Corrosion Culture Media Electrochemical Techniques Electrodes Hydrogen-Ion Concentration Iron Sulfides Saavedra, A. Figueredo, F. Cortón, E. Abrevaya, X.C. An electrochemical sensing approach for scouting microbial chemolithotrophic metabolisms |
| topic_facet |
Acidithiobacillus ferrooxidans Biomining In-situ life detection Microbiologically-induced corrosion Pyrite mineral Electrochemical sensors Metabolism Pyrites Scanning electron microscopy Acidithiobacillus ferrooxidans Biomining Electrochemical parameters Electrochemical sensing Electrochemical techniques In-situ life detection Microbiologically induced corrosion Voltammetric studies Corrosion ferrous ion pyrite iron sulfide Acidithiobacillus ferrooxidans analytic method Article bacterial growth bacterium adherence chemolithoautotroph controlled study cyclic potentiometry electrochemistry microbial corrosion microbial metabolism nonhuman pH scanning electron microscopy Acidithiobacillus chemistry corrosion culture medium cytology devices electrochemical analysis electrode growth, development and aging metabolism Acidithiobacillus Bacterial Adhesion Corrosion Culture Media Electrochemical Techniques Electrodes Hydrogen-Ion Concentration Iron Sulfides |
| description |
The present study was aimed to test an electrochemical sensing approach for the detection of an active chemolithotrophic metabolism (and therefore the presence of chemolithotrophic microorganisms) by using the corrosion of pyrite by Acidithiobacillus ferrooxidans as a model. Different electrochemical techniques were combined with adhesion studies and scanning electron microscopy (SEM). The experiments were performed in presence or absence of A. ferrooxidans and without or with ferrous iron in the culture medium (0 and 0.5 g L−1, respectively). Electrochemical parameters were in agreement with voltammetric studies and SEM showing that it is possible to distinguish between an abiotically-induced corrosion process (AIC) and a microbiologically-induced corrosion process (MIC). The results show that our approach not only allows the detection of chemolithotrophic activity of A. ferrooxidans but also can characterize the corrosion process. This may have different kind of applications, from those related to biomining to life searching missions in other planetary bodies. © 2018 Elsevier B.V. |
| format |
JOUR |
| author |
Saavedra, A. Figueredo, F. Cortón, E. Abrevaya, X.C. |
| author_facet |
Saavedra, A. Figueredo, F. Cortón, E. Abrevaya, X.C. |
| author_sort |
Saavedra, A. |
| title |
An electrochemical sensing approach for scouting microbial chemolithotrophic metabolisms |
| title_short |
An electrochemical sensing approach for scouting microbial chemolithotrophic metabolisms |
| title_full |
An electrochemical sensing approach for scouting microbial chemolithotrophic metabolisms |
| title_fullStr |
An electrochemical sensing approach for scouting microbial chemolithotrophic metabolisms |
| title_full_unstemmed |
An electrochemical sensing approach for scouting microbial chemolithotrophic metabolisms |
| title_sort |
electrochemical sensing approach for scouting microbial chemolithotrophic metabolisms |
| url |
http://hdl.handle.net/20.500.12110/paper_15675394_v123_n_p125_Saavedra |
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1807314432520355840 |