| Preparation of an antibacterial film based on chitosan, PVA, and silver nanoparticles |
| کد مقاله : 1183-ICOC |
| نویسندگان |
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حس ین ژاله *1، زهرا زارعی فرجا2، بابک ژاله3، عاطفه نصری2، فاطمه گوهرپور2 1گروه زیست شناسی، دانشکده علوم پایه، دانشگاه بوعلی سینا، همدان، ایران Department of Biology, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran 2Department of Physics, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran 3¹Department of Physics, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran |
| چکیده مقاله |
| In this study, an antibacterial film based on chitosan (CS), polyvinyl alcohol (PVA), and silver nano/micro-particles (Ag NPs) was prepared using the laser ablation in liquid (LAL) method. The aim was to obtain a polymeric structure with suitable stability and significant antibacterial activity for applications in active packaging and biocompatible materials. The silver nano/micro-particles were produced by irradiating a silver target in a liquid medium using Fiber laser and were subsequently added to the CS/PVA solution [1]. The films were fabricated using the solution-casting technique and characterized after drying. To evaluate the structure and morphology of the films, FTIR ATR spectroscopy was used to analyze the functional groups of the polymers, XRD was employed to identify the crystalline phases and confirm the presence of silver nanoparticles, and SEM was performed to observe the surface morphology and particle distribution [2]. FTIR results showed that the characteristic bonds of CS and PVA were preserved, while the incorporation of Ag NPs caused slight shifts in the vibrational regions. The XRD pattern confirmed the presence of the characteristic peaks of metallic silver. SEM images revealed a relatively uniform distribution of silver nano/micro-particles within the polymer matrix. The antibacterial activity of the samples against Staphylococcus aureus was evaluated using the disk diffusion method. The addition of Ag NPs significantly increased the inhibition zone diameter, indicating the effective antibacterial performance of the silver nanoparticles [3]. Overall, the findings demonstrate that the CS/PVA/Ag composite film produced via LAL can be a promising candidate for antimicrobial applications and active packaging. |
| کلیدواژه ها |
| Chitosan, Polyvinyl alcohol, Silver nano/micro-particles, Antibacterial films. |
| وضعیت: پذیرفته شده |