Optical, Opto-Mechanical, and Antimicrobial Characterization of TiO 2 and ZnO-Enhanced Polypropylene Fibers Using Interferometric Techniques and Fourier Transform Analysis.

Autor: Aldosari FM; Department of Physics, College of Science and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia., Sefrji FO; Department of Biology, College of Science, Taibah University, Al-Madinah Al-Munawarah, Saudi Arabia., Alsharari AM; Department of Physics, College of Science, University of Tabuk, Tabuk, Saudi Arabia., Al-Ghamdi SA; Department of Physics, College of Science, University of Tabuk, Tabuk, Saudi Arabia., Alqarni SA; Department of Chemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia., Hadi M; Department of Physics, Faculty of Science, King Khalid University, Abha, Saudi Arabia., Alamoudi WM; Department of Biology, Faculty of Sciences, Umm Al-Qura University, Makkah, Saudi Arabia., El-Metwaly NM; Department of Chemistry, Faculty of Science, Umm Al-Qura University, Makkah, Saudi Arabia.; Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt.
Jazyk: angličtina
Zdroj: Luminescence : the journal of biological and chemical luminescence [Luminescence] 2024 Dec; Vol. 39 (12), pp. e70067.
DOI: 10.1002/bio.70067
Abstrakt: This study investigates the optical, mechanical, and antimicrobial properties of polypropylene (PP) fibers enhanced with titanium dioxide (TiO 2 ) and zinc oxide (ZnO) nanoparticles. Using a Mach-Zehnder interferometric system, we examined the refractive indices, birefringence, and opto-mechanical behavior of blank PP, PP/TiO 2 , and PP/ZnO nanocomposite fibers under various conditions, including different polarization orientations and during cold drawing processes. The 2D Fourier transform algorithm is employed to analyze interferometric data, enabling precise measurements of refractive index profiles and birefringence. Results show that both TiO 2 and ZnO nanoparticles significantly enhance the optical and mechanical properties of PP fibers. PP/TiO 2 fibers exhibited the highest refractive index (1.530) and birefringence (0.0459), followed by PP/ZnO (1.522 and 0.040) and blank PP (1.520 and 0.031). The maximum draw ratios achieved were 4.2, 3.9, and 3.5 for PP/TiO 2 , PP/ZnO, and blank PP fibers, respectively, indicating improved mechanical properties in the nanocomposites. Antimicrobial efficacy was evaluated using the shaking flask method and optical density measurements against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans. PP/ZnO fibers demonstrated the highest antimicrobial activity, with growth reductions ranging from 64.8% to 80.4%, followed by PP/TiO2 fibers (56.0% to 70.3%).
(© 2024 John Wiley & Sons Ltd.)
Databáze: MEDLINE
Externí odkaz: