Enhances durability and antibacterial efficacy: Chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane composite films
The new nanocomposite films of chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane (CS/Ag/OAPOSS) were fabricated to investigate their antibacterial and mechanical properties. The films were made by adding OAPOSS nanoparticles to the chitosan‑silver film, which were applied in four di...
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| Language: | English |
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Elsevier
2025-05-01
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| Series: | Results in Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211715625002048 |
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| author | Elham Askarizadeh Hanie Ramezankhani Majid Karimi Ali Masjedi |
| author_facet | Elham Askarizadeh Hanie Ramezankhani Majid Karimi Ali Masjedi |
| author_sort | Elham Askarizadeh |
| collection | DOAJ |
| description | The new nanocomposite films of chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane (CS/Ag/OAPOSS) were fabricated to investigate their antibacterial and mechanical properties. The films were made by adding OAPOSS nanoparticles to the chitosan‑silver film, which were applied in four different concentrations (0.5, 1, 5, and 9 wt%). The structure and morphology of the new nanocomposite films were examined using X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), energy-dispersive-X-ray (EDX) mapping analysis, and infrared spectroscopy (IR). The antibacterial properties of the new films were tested against two different pathogens, Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive). The study revealed that the novel CS/Ag/OAPOSS films exhibit promising antibacterial properties. Also, the tensile data shows that the presence of OAPOSS and Ag nanoparticles (NPs) affects the structural stability and mechanical properties of chitosan film. Moreover, the film with a higher weight percentage of OAPOSS nanoparticles exhibited higher antibacterial activity, regardless of the type of bacteria. Given the growing resistance of bacteria to antibiotic drugs, this information has immense relevance for researchers in the field of medicine and health. |
| format | Article |
| id | doaj-art-20bd320608fa40dca7ea6b6fe2b26595 |
| institution | OA Journals |
| issn | 2211-7156 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Chemistry |
| spelling | doaj-art-20bd320608fa40dca7ea6b6fe2b265952025-08-20T02:35:43ZengElsevierResults in Chemistry2211-71562025-05-011510222110.1016/j.rechem.2025.102221Enhances durability and antibacterial efficacy: Chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane composite filmsElham Askarizadeh0Hanie Ramezankhani1Majid Karimi2Ali Masjedi3Department of Applied Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Azad University of Medical Sciences, Islamic Azad University, Tehran, Iran; Corresponding author.Department of Applied Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Azad University of Medical Sciences, Islamic Azad University, Tehran, IranPolymerization Engineering Department, Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965/115, Tehran, IranDepartment of Applied Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Azad University of Medical Sciences, Islamic Azad University, Tehran, IranThe new nanocomposite films of chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane (CS/Ag/OAPOSS) were fabricated to investigate their antibacterial and mechanical properties. The films were made by adding OAPOSS nanoparticles to the chitosan‑silver film, which were applied in four different concentrations (0.5, 1, 5, and 9 wt%). The structure and morphology of the new nanocomposite films were examined using X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM), energy-dispersive-X-ray (EDX) mapping analysis, and infrared spectroscopy (IR). The antibacterial properties of the new films were tested against two different pathogens, Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive). The study revealed that the novel CS/Ag/OAPOSS films exhibit promising antibacterial properties. Also, the tensile data shows that the presence of OAPOSS and Ag nanoparticles (NPs) affects the structural stability and mechanical properties of chitosan film. Moreover, the film with a higher weight percentage of OAPOSS nanoparticles exhibited higher antibacterial activity, regardless of the type of bacteria. Given the growing resistance of bacteria to antibiotic drugs, this information has immense relevance for researchers in the field of medicine and health.http://www.sciencedirect.com/science/article/pii/S2211715625002048Octa ammonium polyhedral oligomeric silsesquioxane (OAPOSS) nanoparticleSilver nanoparticleChitosanAntibacterialNanocomposite films |
| spellingShingle | Elham Askarizadeh Hanie Ramezankhani Majid Karimi Ali Masjedi Enhances durability and antibacterial efficacy: Chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane composite films Results in Chemistry Octa ammonium polyhedral oligomeric silsesquioxane (OAPOSS) nanoparticle Silver nanoparticle Chitosan Antibacterial Nanocomposite films |
| title | Enhances durability and antibacterial efficacy: Chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane composite films |
| title_full | Enhances durability and antibacterial efficacy: Chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane composite films |
| title_fullStr | Enhances durability and antibacterial efficacy: Chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane composite films |
| title_full_unstemmed | Enhances durability and antibacterial efficacy: Chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane composite films |
| title_short | Enhances durability and antibacterial efficacy: Chitosan‑silver-octa ammonium polyhedral oligomeric silsesquioxane composite films |
| title_sort | enhances durability and antibacterial efficacy chitosan silver octa ammonium polyhedral oligomeric silsesquioxane composite films |
| topic | Octa ammonium polyhedral oligomeric silsesquioxane (OAPOSS) nanoparticle Silver nanoparticle Chitosan Antibacterial Nanocomposite films |
| url | http://www.sciencedirect.com/science/article/pii/S2211715625002048 |
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