Electroactive Biofilms of Activated Sludge Microorganisms on a Nanostructured Surface as the Basis for a Highly Sensitive Biochemical Oxygen Demand Biosensor.
BOD biosensors
activated sludge
bioelectrocatalysis
carbon nanotubes
electroactive biofilms
electron transport mediator
nanostructured surface
redox-active polymers
Journal
Sensors (Basel, Switzerland)
ISSN: 1424-8220
Titre abrégé: Sensors (Basel)
Pays: Switzerland
ID NLM: 101204366
Informations de publication
Date de publication:
12 Aug 2022
12 Aug 2022
Historique:
received:
20
07
2022
revised:
08
08
2022
accepted:
09
08
2022
entrez:
26
8
2022
pubmed:
27
8
2022
medline:
30
8
2022
Statut:
epublish
Résumé
The possibility of the developing a biochemical oxygen demand (BOD) biosensor based on electroactive biofilms of activated sludge grown on the surface of a graphite-paste electrode modified with carbon nanotubes was studied. A complex of microscopic methods controlled biofilm formation: optical microscopy with phase contrast, scanning electron microscopy, and laser confocal microscopy. The features of charge transfer in the obtained electroactive biofilms were studied using the methods of cyclic voltammetry and electrochemical impedance spectroscopy. The rate constant of the interaction of microorganisms with the extracellular electron carrier (0.79 ± 0.03 dm
Identifiants
pubmed: 36015810
pii: s22166049
doi: 10.3390/s22166049
pmc: PMC9414782
pii:
doi:
Substances chimiques
Nanotubes, Carbon
0
Sewage
0
Water
059QF0KO0R
Oxygen
S88TT14065
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : Ministry of Science and Higher Education of the Russian Federation within the framework of a state assignment
ID : "Synthesis of targeted biologically active ionic compounds and new biocomposite materials" (FEWG-2021-0011)
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