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Preparation, Characterization, and Antibacterial Properties of Cu-Fibreboards

In the present study, copper modified fibreboards were prepared and their existing phase, morphology, and antibacterial behaviour were investigated. The copper content and the physical and mechanical properties of fibreboards (thickness, bending strength, and swelling) were determined. X-ray diffrac...

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Autores principales: Aleksandrov, Lyubomir, Rangelova, Nadezhda, Lazarova-Zdravkova, Nevena, Georgieva, Nelly, Dragnevska, Mirela, Nenkova, Sanchi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10650183/
https://www.ncbi.nlm.nih.gov/pubmed/37959533
http://dx.doi.org/10.3390/ma16216936
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author Aleksandrov, Lyubomir
Rangelova, Nadezhda
Lazarova-Zdravkova, Nevena
Georgieva, Nelly
Dragnevska, Mirela
Nenkova, Sanchi
author_facet Aleksandrov, Lyubomir
Rangelova, Nadezhda
Lazarova-Zdravkova, Nevena
Georgieva, Nelly
Dragnevska, Mirela
Nenkova, Sanchi
author_sort Aleksandrov, Lyubomir
collection PubMed
description In the present study, copper modified fibreboards were prepared and their existing phase, morphology, and antibacterial behaviour were investigated. The copper content and the physical and mechanical properties of fibreboards (thickness, bending strength, and swelling) were determined. X-ray diffraction analysis (XRD) showing diffraction peaks typical for cellulose, Cu(2)S, and Na(2)SO(4), depended on the preparation conditions. The average size of the Cu(2)S crystals varied between 20 and 50 nm. The morphology of the obtained fibreboards, as well as the size and shape of copper particles, were observed by scanning electron microscopy (SEM) and transition electron microscopy (TEM). The antibacterial activity was tested against Gram-positive (Bacillus subtilis 3562) and Gram-negative (Escherichia coli K12 407) bacteria. The tests showed that the materials had higher antibacterial activity against E. coli, which depended on their preparation conditions. Based on these results, the obtained copper fibreboards can be used as antibacterial agents in the packaging and building industry.
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spelling pubmed-106501832023-10-28 Preparation, Characterization, and Antibacterial Properties of Cu-Fibreboards Aleksandrov, Lyubomir Rangelova, Nadezhda Lazarova-Zdravkova, Nevena Georgieva, Nelly Dragnevska, Mirela Nenkova, Sanchi Materials (Basel) Article In the present study, copper modified fibreboards were prepared and their existing phase, morphology, and antibacterial behaviour were investigated. The copper content and the physical and mechanical properties of fibreboards (thickness, bending strength, and swelling) were determined. X-ray diffraction analysis (XRD) showing diffraction peaks typical for cellulose, Cu(2)S, and Na(2)SO(4), depended on the preparation conditions. The average size of the Cu(2)S crystals varied between 20 and 50 nm. The morphology of the obtained fibreboards, as well as the size and shape of copper particles, were observed by scanning electron microscopy (SEM) and transition electron microscopy (TEM). The antibacterial activity was tested against Gram-positive (Bacillus subtilis 3562) and Gram-negative (Escherichia coli K12 407) bacteria. The tests showed that the materials had higher antibacterial activity against E. coli, which depended on their preparation conditions. Based on these results, the obtained copper fibreboards can be used as antibacterial agents in the packaging and building industry. MDPI 2023-10-28 /pmc/articles/PMC10650183/ /pubmed/37959533 http://dx.doi.org/10.3390/ma16216936 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Aleksandrov, Lyubomir
Rangelova, Nadezhda
Lazarova-Zdravkova, Nevena
Georgieva, Nelly
Dragnevska, Mirela
Nenkova, Sanchi
Preparation, Characterization, and Antibacterial Properties of Cu-Fibreboards
title Preparation, Characterization, and Antibacterial Properties of Cu-Fibreboards
title_full Preparation, Characterization, and Antibacterial Properties of Cu-Fibreboards
title_fullStr Preparation, Characterization, and Antibacterial Properties of Cu-Fibreboards
title_full_unstemmed Preparation, Characterization, and Antibacterial Properties of Cu-Fibreboards
title_short Preparation, Characterization, and Antibacterial Properties of Cu-Fibreboards
title_sort preparation, characterization, and antibacterial properties of cu-fibreboards
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10650183/
https://www.ncbi.nlm.nih.gov/pubmed/37959533
http://dx.doi.org/10.3390/ma16216936
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