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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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/21/6936 |
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| author | Lyubomir Aleksandrov Nadezhda Rangelova Nevena Lazarova-Zdravkova Nelly Georgieva Mirela Dragnevska Sanchi Nenkova |
| author_facet | Lyubomir Aleksandrov Nadezhda Rangelova Nevena Lazarova-Zdravkova Nelly Georgieva Mirela Dragnevska Sanchi Nenkova |
| author_sort | Lyubomir Aleksandrov |
| collection | DOAJ |
| 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<sub>2</sub>S, and Na<sub>2</sub>SO<sub>4</sub>, depended on the preparation conditions. The average size of the Cu<sub>2</sub>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 (<i>Bacillus subtilis</i> 3562) and Gram-negative (<i>Escherichia coli</i> K12 407) bacteria. The tests showed that the materials had higher antibacterial activity against <i>E. coli</i>, 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. |
| first_indexed | 2024-03-11T11:25:59Z |
| format | Article |
| id | doaj.art-14f36828493542af9607da11320c5737 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T11:25:59Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-14f36828493542af9607da11320c57372023-11-10T15:07:23ZengMDPI AGMaterials1996-19442023-10-011621693610.3390/ma16216936Preparation, Characterization, and Antibacterial Properties of Cu-FibreboardsLyubomir Aleksandrov0Nadezhda Rangelova1Nevena Lazarova-Zdravkova2Nelly Georgieva3Mirela Dragnevska4Sanchi Nenkova5Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, BulgariaDepartment of Industrial Safety, University of Chemical Technology and Metallurgy, 1756 Sofia, BulgariaDepartment of Biotechnology, University of Chemical Technology and Metallurgy, 1756 Sofia, BulgariaDepartment of Biotechnology, University of Chemical Technology and Metallurgy, 1756 Sofia, BulgariaDepartment of Pulp, Paper and Printing Arts, University of Chemical Technology and Metallurgy, 1756 Sofia, BulgariaDepartment of Pulp, Paper and Printing Arts, University of Chemical Technology and Metallurgy, 1756 Sofia, BulgariaIn 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<sub>2</sub>S, and Na<sub>2</sub>SO<sub>4</sub>, depended on the preparation conditions. The average size of the Cu<sub>2</sub>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 (<i>Bacillus subtilis</i> 3562) and Gram-negative (<i>Escherichia coli</i> K12 407) bacteria. The tests showed that the materials had higher antibacterial activity against <i>E. coli</i>, 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.https://www.mdpi.com/1996-1944/16/21/6936fibreboardsmodificationcopper nanoparticlesantibacterial activity |
| spellingShingle | Lyubomir Aleksandrov Nadezhda Rangelova Nevena Lazarova-Zdravkova Nelly Georgieva Mirela Dragnevska Sanchi Nenkova Preparation, Characterization, and Antibacterial Properties of Cu-Fibreboards Materials fibreboards modification copper nanoparticles antibacterial activity |
| 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 | fibreboards modification copper nanoparticles antibacterial activity |
| url | https://www.mdpi.com/1996-1944/16/21/6936 |
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