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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...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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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. |
format | Online Article Text |
id | pubmed-7153254 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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