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MES research in electrode, bacteria. Reliable and accurate in situ sensors capable of detecting and quantifying troublesome marine biofil...

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Abstract

Reliable and accurate in situ sensors capable of detecting and quantifying troublesome marine biofilms on metallic surfaces are increasingly necessary. A 0.2 mm diameter gold electrochemical sensor was fully characterized using cyclic voltammetry in abiotic and biotic artificial seawater media within a continuous culture flow cell to detect the growth and development of an aerobic Pseudoalteromonas sp. biofilm. Deconvolution of the abiotic and biotic responses enable the constituent extracellular electron transfer and biofilm responses to be resolved. Differentiation of enhanced oxygen reduction kinetics within the aerobic bacterial biofilm is linked to enzyme and redox mediator activities.

Keywords

BiofilmAbiotic componentCyclic voltammetryRedoxElectron transferElectrochemistry

Identifiers

DOI
10.1021/acsami.1c02669
Journal
ACS Applied Materials & Interfaces
Year
2021