An electrochemical impedance model for integrated bacterial biofilms
Bacterial cells attachment onto solid surfaces and the following growth into mature microbial biofilms may result in highly antibiotic resistant biofilms. Such biofilms may be incidentally formed on tissues or implanted devices, or intentionally formed by directed deposition of microbial sensors on...
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| Veröffentlicht in: | Electrochimica acta 2011-09, Vol.56 (23), p.7780-7786 |
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| container_title | Electrochimica acta |
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| creator | Ben-Yoav, Hadar Freeman, Amihay Sternheim, Marek Shacham-Diamand, Yosi |
| description | Bacterial cells attachment onto solid surfaces and the following growth into mature microbial biofilms may result in highly antibiotic resistant biofilms. Such biofilms may be incidentally formed on tissues or implanted devices, or intentionally formed by directed deposition of microbial sensors on whole-cell bio-chip surface. A new method for electrical characterization of the later on-chip microbial biofilm buildup is presented in this paper. Measurement of impedance vs. frequency in the range of 100
mHz to 400
kHz of
Escherichia coli cells attachment to indium-tin-oxide-coated electrodes was carried out while using optical microscopy estimating the electrode area coverage. We show that impedance spectroscopy measurements can be interpreted by a simple electrical equivalent model characterizing both attachment and growth of the biofilm. The correlation of extracted equivalent electrical lumped components with the visual biofilm parameters and their dependence on the attachment and growth phases is confirmed. |
| doi_str_mv | 10.1016/j.electacta.2010.12.025 |
| format | Article |
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mHz to 400
kHz of
Escherichia coli cells attachment to indium-tin-oxide-coated electrodes was carried out while using optical microscopy estimating the electrode area coverage. We show that impedance spectroscopy measurements can be interpreted by a simple electrical equivalent model characterizing both attachment and growth of the biofilm. The correlation of extracted equivalent electrical lumped components with the visual biofilm parameters and their dependence on the attachment and growth phases is confirmed.</description><identifier>ISSN: 0013-4686</identifier><identifier>EISSN: 1873-3859</identifier><identifier>DOI: 10.1016/j.electacta.2010.12.025</identifier><identifier>CODEN: ELCAAV</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Anomalous diffusion theory ; Antibiotics ; Bio-chips ; Biodeterioration. Biofouling ; Biological and medical sciences ; Biotechnology ; Electrochemical impedance spectroscopy ; Escherichia coli ; Fundamental and applied biological sciences. Psychology ; Industrial applications and implications. Economical aspects ; Microbial biofilms ; Optical microscopy</subject><ispartof>Electrochimica acta, 2011-09, Vol.56 (23), p.7780-7786</ispartof><rights>2010 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c432t-cd57177e0158b51cecb288564f11163dc6d3fa656c4b13b93503ddb1cd2f7a373</citedby><cites>FETCH-LOGICAL-c432t-cd57177e0158b51cecb288564f11163dc6d3fa656c4b13b93503ddb1cd2f7a373</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0013468610016579$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,776,780,785,786,3537,23909,23910,25118,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24619701$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ben-Yoav, Hadar</creatorcontrib><creatorcontrib>Freeman, Amihay</creatorcontrib><creatorcontrib>Sternheim, Marek</creatorcontrib><creatorcontrib>Shacham-Diamand, Yosi</creatorcontrib><title>An electrochemical impedance model for integrated bacterial biofilms</title><title>Electrochimica acta</title><description>Bacterial cells attachment onto solid surfaces and the following growth into mature microbial biofilms may result in highly antibiotic resistant biofilms. Such biofilms may be incidentally formed on tissues or implanted devices, or intentionally formed by directed deposition of microbial sensors on whole-cell bio-chip surface. A new method for electrical characterization of the later on-chip microbial biofilm buildup is presented in this paper. Measurement of impedance vs. frequency in the range of 100
mHz to 400
kHz of
Escherichia coli cells attachment to indium-tin-oxide-coated electrodes was carried out while using optical microscopy estimating the electrode area coverage. We show that impedance spectroscopy measurements can be interpreted by a simple electrical equivalent model characterizing both attachment and growth of the biofilm. The correlation of extracted equivalent electrical lumped components with the visual biofilm parameters and their dependence on the attachment and growth phases is confirmed.</description><subject>Anomalous diffusion theory</subject><subject>Antibiotics</subject><subject>Bio-chips</subject><subject>Biodeterioration. Biofouling</subject><subject>Biological and medical sciences</subject><subject>Biotechnology</subject><subject>Electrochemical impedance spectroscopy</subject><subject>Escherichia coli</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Industrial applications and implications. 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Biofouling</topic><topic>Biological and medical sciences</topic><topic>Biotechnology</topic><topic>Electrochemical impedance spectroscopy</topic><topic>Escherichia coli</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Industrial applications and implications. 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mHz to 400
kHz of
Escherichia coli cells attachment to indium-tin-oxide-coated electrodes was carried out while using optical microscopy estimating the electrode area coverage. We show that impedance spectroscopy measurements can be interpreted by a simple electrical equivalent model characterizing both attachment and growth of the biofilm. The correlation of extracted equivalent electrical lumped components with the visual biofilm parameters and their dependence on the attachment and growth phases is confirmed.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.electacta.2010.12.025</doi><tpages>7</tpages></addata></record> |
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| ispartof | Electrochimica acta, 2011-09, Vol.56 (23), p.7780-7786 |
| issn | 0013-4686 1873-3859 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Anomalous diffusion theory Antibiotics Bio-chips Biodeterioration. Biofouling Biological and medical sciences Biotechnology Electrochemical impedance spectroscopy Escherichia coli Fundamental and applied biological sciences. Psychology Industrial applications and implications. Economical aspects Microbial biofilms Optical microscopy |
| title | An electrochemical impedance model for integrated bacterial biofilms |
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