A Comparative Study of PMETAC-Modified Mesoporous Silica and Titania Thin Films for Molecular Transport Manipulation
The manipulation and understanding of molecular transport across functionalized nanopores will take us closer to mimicking biological membranes and thus to design high-performance permselective separation systems. In this work, Surface-initiated atom transfer radical polymerization (SI-ATRP) of (2-m...
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ftconicet:oai:ri.conicet.gov.ar:11336/200820 2023-10-09T21:56:30+02:00 A Comparative Study of PMETAC-Modified Mesoporous Silica and Titania Thin Films for Molecular Transport Manipulation Alberti, Sebastian Giussi, Juan Martín Azzaroni, Omar Soler Illia, Galo Juan de Avila Arturo application/pdf http://hdl.handle.net/11336/200820 eng eng Multidisciplinary Digital Publishing Institute info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4360/14/22/4823 info:eu-repo/semantics/altIdentifier/doi/10.3390/polym14224823 http://hdl.handle.net/11336/200820 Alberti, Sebastian; Giussi, Juan Martín; Azzaroni, Omar; Soler Illia, Galo Juan de Avila Arturo; A Comparative Study of PMETAC-Modified Mesoporous Silica and Titania Thin Films for Molecular Transport Manipulation; Multidisciplinary Digital Publishing Institute; Polymers; 14; 22; 11-2022; 1-15 2073-4360 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ HYBRID MATERIALS MESOPOROUS THIN FILMS MOLECULAR BRUSHES PERMSELECTIVE MEMBRANES ZWITTERIONIC https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.3390/polym14224823 2023-09-24T19:42:28Z The manipulation and understanding of molecular transport across functionalized nanopores will take us closer to mimicking biological membranes and thus to design high-performance permselective separation systems. In this work, Surface-initiated atom transfer radical polymerization (SI-ATRP) of (2-methacryloyloxy)-ethyltrimethylammonium chloride (METAC) was performed on both mesoporous silica and mesoporous titania thin films. Pores were proven to be filled using ellipsometry and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). Furthermore, the employed method leads to a polymer overlayer, whose thickness could be discriminated using a double-layer ellipsometry model. Cyclic voltammetry experiments reveal that the transport of electrochemically active probes is affected by the PMETAC presence, both due to the polymer overlayer and the confined charge of the pore-tethered PMETAC. A more detailed study demonstrates that ion permeability depends on the combined role of the inorganic scaffolds’ (titania and silica) surface chemistry and the steric and charge exclusion properties of the polyelectrolyte. Interestingly, highly charged negative walls with positively charged polymers may resemble zwitterionic polymer behavior in confined environments. Fil: Alberti, Sebastian. UiT the Arctic University of Norway; Noruega Fil: Giussi, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Yacimientos Petrolíferos Fiscales S. A.; Argentina Fil: Azzaroni, Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Soler Illia, Galo Juan de Avila Arturo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina Article in Journal/Newspaper Arctic University of Norway UiT The Arctic University of Norway CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Arctic Norway Argentina Noruega ENVELOPE(-12.333,-12.333,-71.333,-71.333) Alberti ENVELOPE(-62.995,-62.995,-64.313,-64.313) Soler ENVELOPE(-63.000,-63.000,-64.283,-64.283) Illia ENVELOPE(14.267,14.267,66.337,66.337) Polymers 14 22 4823 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
HYBRID MATERIALS MESOPOROUS THIN FILMS MOLECULAR BRUSHES PERMSELECTIVE MEMBRANES ZWITTERIONIC https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
spellingShingle |
HYBRID MATERIALS MESOPOROUS THIN FILMS MOLECULAR BRUSHES PERMSELECTIVE MEMBRANES ZWITTERIONIC https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 Alberti, Sebastian Giussi, Juan Martín Azzaroni, Omar Soler Illia, Galo Juan de Avila Arturo A Comparative Study of PMETAC-Modified Mesoporous Silica and Titania Thin Films for Molecular Transport Manipulation |
topic_facet |
HYBRID MATERIALS MESOPOROUS THIN FILMS MOLECULAR BRUSHES PERMSELECTIVE MEMBRANES ZWITTERIONIC https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
description |
The manipulation and understanding of molecular transport across functionalized nanopores will take us closer to mimicking biological membranes and thus to design high-performance permselective separation systems. In this work, Surface-initiated atom transfer radical polymerization (SI-ATRP) of (2-methacryloyloxy)-ethyltrimethylammonium chloride (METAC) was performed on both mesoporous silica and mesoporous titania thin films. Pores were proven to be filled using ellipsometry and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). Furthermore, the employed method leads to a polymer overlayer, whose thickness could be discriminated using a double-layer ellipsometry model. Cyclic voltammetry experiments reveal that the transport of electrochemically active probes is affected by the PMETAC presence, both due to the polymer overlayer and the confined charge of the pore-tethered PMETAC. A more detailed study demonstrates that ion permeability depends on the combined role of the inorganic scaffolds’ (titania and silica) surface chemistry and the steric and charge exclusion properties of the polyelectrolyte. Interestingly, highly charged negative walls with positively charged polymers may resemble zwitterionic polymer behavior in confined environments. Fil: Alberti, Sebastian. UiT the Arctic University of Norway; Noruega Fil: Giussi, Juan Martín. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Yacimientos Petrolíferos Fiscales S. A.; Argentina Fil: Azzaroni, Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Soler Illia, Galo Juan de Avila Arturo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina |
format |
Article in Journal/Newspaper |
author |
Alberti, Sebastian Giussi, Juan Martín Azzaroni, Omar Soler Illia, Galo Juan de Avila Arturo |
author_facet |
Alberti, Sebastian Giussi, Juan Martín Azzaroni, Omar Soler Illia, Galo Juan de Avila Arturo |
author_sort |
Alberti, Sebastian |
title |
A Comparative Study of PMETAC-Modified Mesoporous Silica and Titania Thin Films for Molecular Transport Manipulation |
title_short |
A Comparative Study of PMETAC-Modified Mesoporous Silica and Titania Thin Films for Molecular Transport Manipulation |
title_full |
A Comparative Study of PMETAC-Modified Mesoporous Silica and Titania Thin Films for Molecular Transport Manipulation |
title_fullStr |
A Comparative Study of PMETAC-Modified Mesoporous Silica and Titania Thin Films for Molecular Transport Manipulation |
title_full_unstemmed |
A Comparative Study of PMETAC-Modified Mesoporous Silica and Titania Thin Films for Molecular Transport Manipulation |
title_sort |
comparative study of pmetac-modified mesoporous silica and titania thin films for molecular transport manipulation |
publisher |
Multidisciplinary Digital Publishing Institute |
url |
http://hdl.handle.net/11336/200820 |
long_lat |
ENVELOPE(-12.333,-12.333,-71.333,-71.333) ENVELOPE(-62.995,-62.995,-64.313,-64.313) ENVELOPE(-63.000,-63.000,-64.283,-64.283) ENVELOPE(14.267,14.267,66.337,66.337) |
geographic |
Arctic Norway Argentina Noruega Alberti Soler Illia |
geographic_facet |
Arctic Norway Argentina Noruega Alberti Soler Illia |
genre |
Arctic University of Norway UiT The Arctic University of Norway |
genre_facet |
Arctic University of Norway UiT The Arctic University of Norway |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4360/14/22/4823 info:eu-repo/semantics/altIdentifier/doi/10.3390/polym14224823 http://hdl.handle.net/11336/200820 Alberti, Sebastian; Giussi, Juan Martín; Azzaroni, Omar; Soler Illia, Galo Juan de Avila Arturo; A Comparative Study of PMETAC-Modified Mesoporous Silica and Titania Thin Films for Molecular Transport Manipulation; Multidisciplinary Digital Publishing Institute; Polymers; 14; 22; 11-2022; 1-15 2073-4360 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.3390/polym14224823 |
container_title |
Polymers |
container_volume |
14 |
container_issue |
22 |
container_start_page |
4823 |
_version_ |
1779321315327475712 |