Volume 23, Issue 11 2300132
Research Article

A New Strong-Acid Free Route to Produce Xanthan Gum-PANI Composite Scaffold Supporting Bioelectricity

Francesca Pescosolido

Francesca Pescosolido

Department of Chemical Science and Technologies, University of Rome “Tor Vergata,”, Via Della Ricerca Scientifica, Rome, 00133 Italy

Interdepartmental Research Centre for Regenerative Medicine (CIMER), University of Rome “Tor Vergata,”, Via Montpellier 1, Rome, 00133 Italy

Department of Clinical Science and Translational Medicine, University of Rome “Tor Vergata,” Via Montpellier 1, Rome, 00133 Italy

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Luca Montaina

Luca Montaina

Department of Chemical Science and Technologies, University of Rome “Tor Vergata,”, Via Della Ricerca Scientifica, Rome, 00133 Italy

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Rocco Carcione

Rocco Carcione

Department of Chemical Science and Technologies, University of Rome “Tor Vergata,”, Via Della Ricerca Scientifica, Rome, 00133 Italy

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Sara Politi

Sara Politi

Department of Chemical Science and Technologies, University of Rome “Tor Vergata,”, Via Della Ricerca Scientifica, Rome, 00133 Italy

Interdepartmental Research Centre for Regenerative Medicine (CIMER), University of Rome “Tor Vergata,”, Via Montpellier 1, Rome, 00133 Italy

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Roberto Matassa

Roberto Matassa

Department of Anatomy, Histology, Forensic Medicine and Orthopedics, Section of Human Anatomy, Sapienza University of Rome, Via A. Borelli 50, Rome, 00161 Italy

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Felicia Carotenuto

Felicia Carotenuto

Interdepartmental Research Centre for Regenerative Medicine (CIMER), University of Rome “Tor Vergata,”, Via Montpellier 1, Rome, 00133 Italy

Department of Clinical Science and Translational Medicine, University of Rome “Tor Vergata,” Via Montpellier 1, Rome, 00133 Italy

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Stefania Annarita Nottola

Stefania Annarita Nottola

Department of Anatomy, Histology, Forensic Medicine and Orthopedics, Section of Human Anatomy, Sapienza University of Rome, Via A. Borelli 50, Rome, 00161 Italy

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Paolo Di Nardo

Paolo Di Nardo

Interdepartmental Research Centre for Regenerative Medicine (CIMER), University of Rome “Tor Vergata,”, Via Montpellier 1, Rome, 00133 Italy

Department of Clinical Science and Translational Medicine, University of Rome “Tor Vergata,” Via Montpellier 1, Rome, 00133 Italy

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Emanuela Tamburri

Corresponding Author

Emanuela Tamburri

Department of Chemical Science and Technologies, University of Rome “Tor Vergata,”, Via Della Ricerca Scientifica, Rome, 00133 Italy

Interdepartmental Research Centre for Regenerative Medicine (CIMER), University of Rome “Tor Vergata,”, Via Montpellier 1, Rome, 00133 Italy

: [email protected]

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First published: 03 July 2023
Citations: 1

Abstract

Conductive hybrid xanthan gum (XG)–polyaniline (PANI) biocomposites forming 3D structures able to mimic electrical biological functions are synthesized by a strong-acid free medium. In situ aniline oxidative chemical polymerizations are performed in XG water dispersions to produce stable XG–PANI pseudoplastic fluids. XG–PANI composites with 3D architectures are obtained by subsequent freeze-drying processes. The morphological investigation highlights the formation of porous structures; UV–vis and Raman spectroscopy characterizations assess the chemical structure of the produced composites. I–V measurements evidence electrical conductivity of the samples, while electrochemical analyses point out their capability to respond to electric stimuli with electron and ion exchanges in physiological-like environment. Trial tests on prostate cancer cells evaluate biocompatibility of the XG–PANI composite. Obtained results demonstrate that a strong acid-free route produces an electrically conductive and electrochemically active XG–PANI polymer composite. The investigation of charge transport and transfer, as well as of biocompatibility properties of composite materials produced in aqueous environments, brings new perspective for exploitation of such materials in biomedical applications. In particular, the developed strategy can be used to realize biomaterials working as scaffolds that require electrical stimulations for inducing cell growth and communication or for biosignals monitoring and analysis.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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