Impact of sterilization and oxidation processes on the additive blooming observed on the surface of polyurethane
| Autor: | Micheal Nouman, Emile Jubeli, Christian Marlière, Najet Yagoubi, Johanna Saunier |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Fabrication
Antioxidant Materials science Polymers and Plastics Biocompatibility medicine.medical_treatment General Physics and Astronomy Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences chemistry.chemical_compound Microscopy Materials Chemistry medicine Polyurethane chemistry.chemical_classification Atomic force microscopy Organic Chemistry Polymer Sterilization (microbiology) 021001 nanoscience & nanotechnology 0104 chemical sciences Chemical engineering chemistry 0210 nano-technology |
| Zdroj: | European Polymer Journal. 90:37-53 |
| ISSN: | 0014-3057 |
| DOI: | 10.1016/j.eurpolymj.2017.03.002 |
| Popis: | The surface state is a major parameter for the biocompatibility of medical devices. During storage, the blooming of additives may occur on the surface of polymers and modify their properties. In this study, the impact of sterilizing and oxidation treatments on blooming was studied. The study was realized on polyurethane used in the fabrication of catheters on which the blooming of antioxidant crystals has been previously observed. Sterilization by ionizing radiations (beta, gamma) was performed on this material and samples were submitted to different kinds of oxidation process (UV, H 2 O 2 and macrophages action). Surface evolution was investigated using AFM microscopy, FTIR-ATR and SEM. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect