Skip to main content

ORIGINAL RESEARCH article

Front. Chem.
Sec. Catalytic Reactions and Chemistry
Volume 12 - 2024 | doi: 10.3389/fchem.2024.1412242
This article is part of the Research Topic Women in Chemistry 2023 View all 10 articles

Practical applications of copper-based enzymes: synthesis of sulfonated polyaniline through laccase-catalyzed oxidation

Provisionally accepted
Fabrizia Fabrizi de Biani Fabrizia Fabrizi de Biani Maddalena Corsini Maddalena Corsini Rebecca Pogni Rebecca Pogni Maria Camilla Baratto Maria Camilla Baratto *
  • Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Tuscany, Italy

The final, formatted version of the article will be published soon.

    Known for its tunable conductivity and stability, Polyaniline (PANI) is a valuable polymer for electronics and sensing devices. Challenges in solubility have been addressed by creating sulfonated PANI (SPANI), enhancing its practical use. Synthesizing SPANI from sulfonated aniline is intricate, but laccase biocatalysis offers an eco-conscious solution, effective even against high redox potential obstacles. This research monitored the Trametes versicolor laccase-induced oxidation of 3-ABSa via UV-vis spectroscopy, with a notable peak at 565 nm signifying SPANI synthesis, effective even at suboptimal pH. Mediators further boost this process. Moreover, NMR and spectroelectrochemistry confirm the green synthesis of SPANI by laccase, hinting that pH fine-tuning could improve yields, alongside the concurrent creation of azobenzene derivatives.

    Keywords: Laccase; Sulfonated polyaniline, 3-aminobenzenesulfonic acid, cyclic voltammetry, Spectroelectrochemistry, conducting polymers

    Received: 04 Apr 2024; Accepted: 28 Jun 2024.

    Copyright: © 2024 Fabrizi de Biani, Corsini, Pogni and Baratto. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Maria Camilla Baratto, Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, 53100, Tuscany, Italy

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.