ArticleMaterials (Basel, Switzerland)2025
Biological and Physicochemical Characterization of Biodegradable Aliphatic Polyesters with Copper Deposited by Magnetron Sputtering.
Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Biodegradable polymer materials, which reduce the problem of waste and are often produced from renewable raw materials, contribute to sustainable development. The imparting of antimicrobial properties to biodegradable materials represents a significant advantage in a variety of potential applications, including the domain of packaging materials and medical applications. In this study, biodegradable polymer compositions, including polylactide (PLA) and polycaprolactone (PCL), were prepared with copper, which was applied to the polymers using a magnetron sputtering technique. PLA and PCL were selected as representatives of biodegradable polymers of natural and synthetic origin. Copper was used as an alternative to other more expensive metals with antimicrobial properties. The microbiological properties of the samples were examined, the ultraviolet protection factor (UPF) was determined, and the influence of controlled thermo-oxidative and weathering aging on the surface properties of the materials (color, wettability, surface energy, UV-Vis spectra) was analyzed. The UPF values for the PLA and PCL samples containing copper were UPF > 50, so the materials provided excellent UV protection. Thermo-oxidative aging of PCL and weathering aging of PLA influenced the change in color and surface properties (wettability and surface energy) of the composition, resulting from the oxidation of the copper layer deposited on the polymers. Biological evaluation included measurements of prothrombin time (PT) and activated partial thromboplastin time (aPTT) to assess how the synthesized materials influence the intrinsic and extrinsic pathways of blood coagulation, reflecting their potential biomedical relevance. Furthermore, the antimicrobial performance of the obtained samples was examined against representative bacterial strains-
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