Modification of Aspergillus niger by conducting polymer, Polypyrrole, and the evaluation of electrochemical properties of modified cells

The enhancement of bioelectrochemical properties of microorganism by in situ formation of conducting polymer within the cell structures (e.g. cell wall) was performed. The synthesis of polypyrrole (Ppy) within fungi (Aspergillus niger) cells was achieved. Two different Aspergillus niger strains were...

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Bibliographic Details
Published in:Bioelectrochemistry (Amsterdam, Netherlands) Netherlands), 2018-06, Vol.121, p.46-55
Main Authors: Apetrei, Roxana-Mihaela, Carac, Geta, Bahrim, Gabriela, Ramanaviciene, Almira, Ramanavicius, Arunas
Format: Article
Language:English
Subjects:
Ability
Absorption spectroscopy
Aspergillus niger
Biocatalysis
Cell walls
Conducting polymers
Electrochemical analysis
Electrochemistry
Evolution
Fourier transforms
Fungi
Fungi cells modification
Glucose oxidase
In situ polymerization
Infrared spectroscopy
Polymers
Polypyrrole synthesis
Polypyrroles
Spectroscopy
Studies
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Summary:The enhancement of bioelectrochemical properties of microorganism by in situ formation of conducting polymer within the cell structures (e.g. cell wall) was performed. The synthesis of polypyrrole (Ppy) within fungi (Aspergillus niger) cells was achieved. Two different Aspergillus niger strains were selected due to their ability to produce glucose oxidase, which initiated the Ppy formation through products of enzymatic reaction. The evolution of Ppy structural features was investigated by absorption spectroscopy, cyclic voltammetry and Fourier transform infrared spectroscopy. [Display omitted] •Microorganism-assisted polymerization of conjugated polypyrrole (Ppy) achieved.•Two Aspergillus niger strains were modified by Ppy.•Low cost, environmentally friendly Ppy formation method established.•Ppy characterized by UV–Vis and FTIR spectroscopy.•Electrochemical behavior of Ppy modified microorganisms investigated.
ISSN:1567-5394
1878-562X
DOI:10.1016/j.bioelechem.2018.01.001