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ZnO Nanostructures with Antibacterial Properties Prepared by a Green Electrochemical-Thermal Approach

Zinc oxide (ZnO) nanostructures are widely applied materials, and are also capable of antimicrobial action. They can be obtained by several methods, which include physical and chemical approaches. Considering the recent rise of green and low-cost synthetic routes for nanomaterial development, electr...

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Autores principales: Sportelli, Maria Chiara, Picca, Rosaria Anna, Izzi, Margherita, Palazzo, Gerardo, Gristina, Roberto, Innocenti, Massimo, Torsi, Luisa, Cioffi, Nicola
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7153254/
https://www.ncbi.nlm.nih.gov/pubmed/32150997
http://dx.doi.org/10.3390/nano10030473
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author Sportelli, Maria Chiara
Picca, Rosaria Anna
Izzi, Margherita
Palazzo, Gerardo
Gristina, Roberto
Innocenti, Massimo
Torsi, Luisa
Cioffi, Nicola
author_facet Sportelli, Maria Chiara
Picca, Rosaria Anna
Izzi, Margherita
Palazzo, Gerardo
Gristina, Roberto
Innocenti, Massimo
Torsi, Luisa
Cioffi, Nicola
author_sort Sportelli, Maria Chiara
collection PubMed
description Zinc oxide (ZnO) nanostructures are widely applied materials, and are also capable of antimicrobial action. They can be obtained by several methods, which include physical and chemical approaches. Considering the recent rise of green and low-cost synthetic routes for nanomaterial development, electrochemical techniques represent a valid alternative to biogenic synthesis. Following a hybrid electrochemical-thermal method modified by our group, here we report on the aqueous electrosynthesis of ZnO nanomaterials based on the use of alternative stabilizers. We tested both benzyl-hexadecyl-dimetylammonium chloride (BAC) and poly-diallyl-(dimethylammonium) chloride (PDDA). Transmission electron microscopy images showed the formation of rod-like and flower-like structures with a variable aspect-ratio. The combination of UV–Vis, FTIR and XPS spectroscopies allowed for the univocal assessment of the material composition as a function of different thermal treatments. In fact, the latter guaranteed the complete conversion of the as-prepared colloidal materials into stoichiometric ZnO species without excessive morphological modification. The antimicrobial efficacy of both materials was tested against Bacillus subtilis as a Gram-positive model microorganism.
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spelling pubmed-71532542020-04-20 ZnO Nanostructures with Antibacterial Properties Prepared by a Green Electrochemical-Thermal Approach Sportelli, Maria Chiara Picca, Rosaria Anna Izzi, Margherita Palazzo, Gerardo Gristina, Roberto Innocenti, Massimo Torsi, Luisa Cioffi, Nicola Nanomaterials (Basel) Article Zinc oxide (ZnO) nanostructures are widely applied materials, and are also capable of antimicrobial action. They can be obtained by several methods, which include physical and chemical approaches. Considering the recent rise of green and low-cost synthetic routes for nanomaterial development, electrochemical techniques represent a valid alternative to biogenic synthesis. Following a hybrid electrochemical-thermal method modified by our group, here we report on the aqueous electrosynthesis of ZnO nanomaterials based on the use of alternative stabilizers. We tested both benzyl-hexadecyl-dimetylammonium chloride (BAC) and poly-diallyl-(dimethylammonium) chloride (PDDA). Transmission electron microscopy images showed the formation of rod-like and flower-like structures with a variable aspect-ratio. The combination of UV–Vis, FTIR and XPS spectroscopies allowed for the univocal assessment of the material composition as a function of different thermal treatments. In fact, the latter guaranteed the complete conversion of the as-prepared colloidal materials into stoichiometric ZnO species without excessive morphological modification. The antimicrobial efficacy of both materials was tested against Bacillus subtilis as a Gram-positive model microorganism. MDPI 2020-03-05 /pmc/articles/PMC7153254/ /pubmed/32150997 http://dx.doi.org/10.3390/nano10030473 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sportelli, Maria Chiara
Picca, Rosaria Anna
Izzi, Margherita
Palazzo, Gerardo
Gristina, Roberto
Innocenti, Massimo
Torsi, Luisa
Cioffi, Nicola
ZnO Nanostructures with Antibacterial Properties Prepared by a Green Electrochemical-Thermal Approach
title ZnO Nanostructures with Antibacterial Properties Prepared by a Green Electrochemical-Thermal Approach
title_full ZnO Nanostructures with Antibacterial Properties Prepared by a Green Electrochemical-Thermal Approach
title_fullStr ZnO Nanostructures with Antibacterial Properties Prepared by a Green Electrochemical-Thermal Approach
title_full_unstemmed ZnO Nanostructures with Antibacterial Properties Prepared by a Green Electrochemical-Thermal Approach
title_short ZnO Nanostructures with Antibacterial Properties Prepared by a Green Electrochemical-Thermal Approach
title_sort zno nanostructures with antibacterial properties prepared by a green electrochemical-thermal approach
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7153254/
https://www.ncbi.nlm.nih.gov/pubmed/32150997
http://dx.doi.org/10.3390/nano10030473
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