Polyethylenimine surface layer for enhanced virus immobilization on cellulose
| Autor: | Ghania Tiliket, Guy Ladam, Quang Trong Nguyen, Laurent Lebrun |
|---|---|
| Přispěvatelé: | Sciences et Méthodes Séparatives (SMS), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU), Polymères Biopolymères Surfaces (PBS), Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut de Chimie du CNRS (INC)-Institut Normand de Chimie Moléculaire Médicinale et Macromoléculaire (INC3M), Institut de Chimie du CNRS (INC)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
General Physics and Astronomy macromolecular substances 02 engineering and technology 010402 general chemistry 01 natural sciences chemistry.chemical_compound Hydrolysis Adsorption Polymer chemistry [CHIM]Chemical Sciences Cellulose ComputingMilieux_MISCELLANEOUS Polyethylenimine technology industry and agriculture Regenerated cellulose Surfaces and Interfaces General Chemistry [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Cellulose acetate 0104 chemical sciences Surfaces Coatings and Films [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry [CHIM.POLY]Chemical Sciences/Polymers chemistry Chemical engineering Polyelectrolyte adsorption Ionic strength 0210 nano-technology |
| Zdroj: | Applied Surface Science Applied Surface Science, Elsevier, 2016, 370, pp.193-200. ⟨10.1016/j.apsusc.2016.02.165⟩ |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2016.02.165⟩ |
| Popis: | Thin regenerated cellulose films are prepared by hydrolysis of cellulose acetate (CA). A polycation, namely polyethylenimine (PEI), is then adsorbed onto the films. From QCM-D analysis, PEI readily adsorbs from a 0.1% w/v solution in NaCl 0.2 M (ca. 100 ng cm−2). Further PEI adsorption steps at higher PEI concentrations induce a linear growth of the PEI films, suggesting that free adsorption sites still exist after the initial adsorption. The adsorbed PEI chains are resistant to variations of the ionic strength up to NaCl 1 M. Promisingly, the adsorption of T4D bacteriophages are 15-fold more efficient onto the PEI-treated, compared to the native regenerated cellulose films, as measured by QCM-D. This confirms the strong affinity between the negatively charged viruses and PEI, even at low PEI concentration, probably governed by strong electrostatic attractive interactions. This result explains the remarkable improvement of the affinity of medical masks for virus droplets when one of their cellulose layers was changed by two-PEI-functionalized cellulose-based filters. |
| Databáze: | OpenAIRE |
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