Enzymatically Synthesized Polyaniline Doped with Copper Ions: Physico-Chemical and Antimicrobial Properties of the Product

Enzymatic synthesis of the polyaniline (PANI)/sodium polystyrenesulfonate (PSS) interpolyelectrolyte complex, in which PANI is doped with Cu(II) ions, has been developed. The biocatalyst for aniline (ANI) polymerization was the fungal laccase Trametes hirsuta and the oxidizing agent was atmospheric...

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Bibliographic Details
Published in:Applied biochemistry and microbiology 2022-10, Vol.58 (5), p.635-640
Main Authors: Vasil’eva, I. S., Shumakovich, G. P., Morozova, O. V., Yaropolov, A. I.
Format: Article
Language:English
Subjects:
Aniline
Antiinfectives and antibacterials
Antimicrobial agents
Biochemistry
Biomedical and Life Sciences
Coliforms
Copper
E coli
Enzymatic synthesis
Gram-positive bacteria
Ions
Life Sciences
Medical Microbiology
Microbiology
Minimum inhibitory concentration
Oxidation
Oxidizing agents
Polyanilines
X ray fluorescence analysis
X-ray fluorescence
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Summary:Enzymatic synthesis of the polyaniline (PANI)/sodium polystyrenesulfonate (PSS) interpolyelectrolyte complex, in which PANI is doped with Cu(II) ions, has been developed. The biocatalyst for aniline (ANI) polymerization was the fungal laccase Trametes hirsuta and the oxidizing agent was atmospheric oxygen. The resulting PANI-Cu/PSS complex was studied by UV–visible and FTIR-ATR spectroscopy, and X-ray fluorescence analysis. The copper content in PANI‑Cu/PSS was ~8 wt %. The minimum inhibitory concentration (MIC) of the PANI-Cu/PSS complex against gram-negative ( Escherichia coli ) and gram-positive ( Staphylococcus aureus ) bacteria was 2.65 and 0.66 mg/mL, respectively.
ISSN:0003-6838
1608-3024
DOI:10.1134/S0003683822050155