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Evaluation of N atom transmission of N(2) flowing post-discharges for sterilization processes through modification of wettability of textiles
Canal Barnils, Cristina; Villeger, Sandrine; Ricard, André
Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica; Universitat Politècnica de Catalunya. BIBITE - Biomaterials, Biomecànica i Enginyeria de Teixits
Plasma sterilization has been extensively studied in recent years, and at present conditioning materials such as sterilization pouches or process indicators devoted to such processes should be optimized to allow transfer of the technology to the market. The present work evaluates the possibility of using wettability modification of hydrophobic textiles to detect whether Natoms of a flowing post-discharge in sterilization conditions (1 L/min, 100W) are able to freely cross a cellulose membrane (found on the permeable side of a conventional sterilization pouch) and exert their action. Results showed that N2 postdischarge treatment did not alter pore size of the membrane, and the use of tailored hydrophobic textiles was shown to be an appropriate indicator of N atom penetration inside the pouches. Depending on the initial hydrophobic treatment of the textiles, it is possible to detect differences in the density of atoms which crossed the membrane, being capable of distinguishing between parameters such as treatment time, or altered hydrodynamics of the chamber.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria dels materials::Materials plàstics i polímers
Cellulose membrane
Membrane filters
Plasma sterilization
Wettability
Membranes de cel.lulosa
Mullabilitat
Plasma (Gasos ionitzats)
info:eu-repo/semantics/publishedVersion
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