In situ Biofilm Quantification in Bioelectrochemical Systems by using Optical Coherence Tomography
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INVESTIGACIONMetadades
Títol
In situ Biofilm Quantification in Bioelectrochemical Systems by using Optical Coherence TomographyAutoria
Data de publicació
2018-07-11Editor
WileyISSN
1864-5631; 1864-564XCita bibliogràfica
MOLENAAR, Sam D., et al. In situ Biofilm Quantification in Bioelectrochemical Systems by using Optical Coherence Tomography. ChemSusChem, 2018, vol. 11, no 13, p. 2171-2178Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://onlinelibrary.wiley.com/doi/full/10.1002/cssc.201800589Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
Detailed studies of microbial growth in bioelectrochemical systems (BESs) are required for their suitable design and operation. Here, we report the use of optical coherence tomography (OCT) as a tool for in situ and ... [+]
Detailed studies of microbial growth in bioelectrochemical systems (BESs) are required for their suitable design and operation. Here, we report the use of optical coherence tomography (OCT) as a tool for in situ and noninvasive quantification of biofilm growth on electrodes (bioanodes). An experimental platform is designed and described in which transparent electrodes are used to allow real‐time, 3D biofilm imaging. The accuracy and precision of the developed method is assessed by relating the OCT results to well‐established standards for biofilm quantification (chemical oxygen demand (COD) and total N content) and show high correspondence to these standards. Biofilm thickness observed by OCT ranged between 3 and 90 μm for experimental durations ranging from 1 to 24 days. This translated to growth yields between 38 and 42 mgurn:x-wiley:18645631:media:cssc201800589:cssc201800589-math-0001 gurn:x-wiley:18645631:media:cssc201800589:cssc201800589-math-0002 −1 at an anode potential of −0.35 V versus Ag/AgCl. Time‐lapse observations of an experimental run performed in duplicate show high reproducibility in obtained microbial growth yield by the developed method. As such, we identify OCT as a powerful tool for conducting in‐depth characterizations of microbial growth dynamics in BESs. Additionally, the presented platform allows concomitant application of this method with various optical and electrochemical techniques. [-]
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ChemSusChem, 2018, vol. 11, no 13Drets d'accés
info:eu-repo/semantics/openAccess
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