Use of biocompatible redox-active polymers based on carbon nanotubes and modified organic matrices for development of a highly sensitive BOD biosensor.
Biochemical oxygen demand
Bovine serum albumin
Electron transfer mediators
Paracoccus yeei bacteria
Redox-active polymers
Single-walled carbon nanotubes
Journal
Enzyme and microbial technology
ISSN: 1879-0909
Titre abrégé: Enzyme Microb Technol
Pays: United States
ID NLM: 8003761
Informations de publication
Date de publication:
Feb 2021
Feb 2021
Historique:
received:
15
07
2020
revised:
26
10
2020
accepted:
12
11
2020
entrez:
30
12
2020
pubmed:
31
12
2020
medline:
19
8
2021
Statut:
ppublish
Résumé
This work investigated the use of redox-active polymers based on bovine serum albumin and chitosan, covalently bound to mediators neutral red and ferrocene and containing carbon nanotubes, for immobilization of Paracoccus yeei VKM B-3302 bacteria. The structures of produced polymers were studied by IR spectroscopy and scanning electron microscopy. Cyclic voltammetry and impedance spectroscopy found the electrochemical characteristics of the investigated systems: the heterogeneous electron transfer rate constant, the constant of the rate of interaction with P. yeei bacteria and the impedance. The systems containing carbon nanotubes and ferrocene-based redox-active polymer proved to be the most promising. Biosensors formed using the hybrid polymers had a high sensitivity with the lower boundary of 0.1 mg/dm
Identifiants
pubmed: 33375974
pii: S0141-0229(20)30199-X
doi: 10.1016/j.enzmictec.2020.109706
pii:
doi:
Substances chimiques
Nanotubes, Carbon
0
Polymers
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
109706Informations de copyright
Copyright © 2020 Elsevier Inc. All rights reserved.