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- W2760498770 endingPage "972" @default.
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- W2760498770 abstract "The principal plastic materials used for the fluid contact and storage in the biopharmaceutical industry are mainly made up of semi-crystalline polymers, polyolefins, PVC, Siloxane and PET. The polyethylene (PE) and the polypropylene (PP) are often used as fluid contact in multi-layer materials like films. As one sterilisation way of single-use plastic devices used in medical and pharmaceutical fields can take place via γ-irradiation, the effect of sterilization on plastics must be investigated. The irradiation process leads to the production of radicals, which can generate changes in the polymer structure and on the polymer surface. It is well known that the presence of oxygen with free radicals precede the generation of peroxide species so called ROS (reactive oxygen species) which are highly reactive. The purpose of this work is to investigate the γ-rays impact on the surface of PE (polyethylene) and EVA (polyethylene vinyl alcohol) based films when ionized at different doses. X-ray Photoelectron Spectroscopy (XPS) was applied to determine the surface compositions of the polymers to highlight the different chemical moieties generated during the γ-irradiation process and to monitor the potential presence of the ROS." @default.
- W2760498770 created "2017-10-06" @default.
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- W2760498770 date "2018-01-01" @default.
- W2760498770 modified "2023-10-01" @default.
- W2760498770 title "XPS analysis of PE and EVA samples irradiated at different γ-doses" @default.
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- W2760498770 doi "https://doi.org/10.1016/j.apsusc.2017.09.001" @default.
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