Continuous assembly of supramolecular polyamine-phosphate networks on surfaces: Preparation and permeability properties of nanofilms
Supramolecular self-assembly of molecular building blocks represents a powerful "nanoarchitectonic" tool to create new functional materials with molecular-level feature control. Here, we propose a simple method to create tunable phosphate/polyamine-based films on surfaces by successive ass...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_1744683X_v15_n7_p1640_Agazzi |
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todo:paper_1744683X_v15_n7_p1640_Agazzi2023-10-03T16:31:49Z Continuous assembly of supramolecular polyamine-phosphate networks on surfaces: Preparation and permeability properties of nanofilms Agazzi, M.L. Herrera, S.E. Cortez, M.L. Marmisollé, W.A. Von Bilderling, C. Pietrasanta, L.I. Azzaroni, O. Chemical stability Deposition Functional materials Negative ions Polyelectrolytes Self assembly Supramolecular chemistry Thickness measurement Experimental evidence Molecular building blocks Permeability properties Phosphate networks Poly(allylamine hydrochloride) Rational construction Supramolecular networks Supramolecular self-assemblies Polycyclic aromatic hydrocarbons Supramolecular self-assembly of molecular building blocks represents a powerful "nanoarchitectonic" tool to create new functional materials with molecular-level feature control. Here, we propose a simple method to create tunable phosphate/polyamine-based films on surfaces by successive assembly of poly(allylamine hydrochloride) (PAH)/phosphate anions (Pi) supramolecular networks. The growth of the films showed a great linearity and regularity with the number of steps. The coating thickness can be easily modulated by the bulk concentration of PAH and the deposition cycles. The PAH/Pi networks showed chemical stability between pH 4 and 10. The transport properties of the surface assemblies formed from different deposition cycles were evaluated electrochemically by using different redox probes in aqueous solution. The results revealed that either highly permeable films or efficient anion transport selectivity can be created by simply varying the concentration of PAH. This experimental evidence indicates that this new strategy of supramolecular self-assembly can be useful for the rational construction of single polyelectrolyte nanoarchitectures with multiple functionalities. © 2019 The Royal Society of Chemistry. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1744683X_v15_n7_p1640_Agazzi |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Chemical stability Deposition Functional materials Negative ions Polyelectrolytes Self assembly Supramolecular chemistry Thickness measurement Experimental evidence Molecular building blocks Permeability properties Phosphate networks Poly(allylamine hydrochloride) Rational construction Supramolecular networks Supramolecular self-assemblies Polycyclic aromatic hydrocarbons |
| spellingShingle |
Chemical stability Deposition Functional materials Negative ions Polyelectrolytes Self assembly Supramolecular chemistry Thickness measurement Experimental evidence Molecular building blocks Permeability properties Phosphate networks Poly(allylamine hydrochloride) Rational construction Supramolecular networks Supramolecular self-assemblies Polycyclic aromatic hydrocarbons Agazzi, M.L. Herrera, S.E. Cortez, M.L. Marmisollé, W.A. Von Bilderling, C. Pietrasanta, L.I. Azzaroni, O. Continuous assembly of supramolecular polyamine-phosphate networks on surfaces: Preparation and permeability properties of nanofilms |
| topic_facet |
Chemical stability Deposition Functional materials Negative ions Polyelectrolytes Self assembly Supramolecular chemistry Thickness measurement Experimental evidence Molecular building blocks Permeability properties Phosphate networks Poly(allylamine hydrochloride) Rational construction Supramolecular networks Supramolecular self-assemblies Polycyclic aromatic hydrocarbons |
| description |
Supramolecular self-assembly of molecular building blocks represents a powerful "nanoarchitectonic" tool to create new functional materials with molecular-level feature control. Here, we propose a simple method to create tunable phosphate/polyamine-based films on surfaces by successive assembly of poly(allylamine hydrochloride) (PAH)/phosphate anions (Pi) supramolecular networks. The growth of the films showed a great linearity and regularity with the number of steps. The coating thickness can be easily modulated by the bulk concentration of PAH and the deposition cycles. The PAH/Pi networks showed chemical stability between pH 4 and 10. The transport properties of the surface assemblies formed from different deposition cycles were evaluated electrochemically by using different redox probes in aqueous solution. The results revealed that either highly permeable films or efficient anion transport selectivity can be created by simply varying the concentration of PAH. This experimental evidence indicates that this new strategy of supramolecular self-assembly can be useful for the rational construction of single polyelectrolyte nanoarchitectures with multiple functionalities. © 2019 The Royal Society of Chemistry. |
| format |
JOUR |
| author |
Agazzi, M.L. Herrera, S.E. Cortez, M.L. Marmisollé, W.A. Von Bilderling, C. Pietrasanta, L.I. Azzaroni, O. |
| author_facet |
Agazzi, M.L. Herrera, S.E. Cortez, M.L. Marmisollé, W.A. Von Bilderling, C. Pietrasanta, L.I. Azzaroni, O. |
| author_sort |
Agazzi, M.L. |
| title |
Continuous assembly of supramolecular polyamine-phosphate networks on surfaces: Preparation and permeability properties of nanofilms |
| title_short |
Continuous assembly of supramolecular polyamine-phosphate networks on surfaces: Preparation and permeability properties of nanofilms |
| title_full |
Continuous assembly of supramolecular polyamine-phosphate networks on surfaces: Preparation and permeability properties of nanofilms |
| title_fullStr |
Continuous assembly of supramolecular polyamine-phosphate networks on surfaces: Preparation and permeability properties of nanofilms |
| title_full_unstemmed |
Continuous assembly of supramolecular polyamine-phosphate networks on surfaces: Preparation and permeability properties of nanofilms |
| title_sort |
continuous assembly of supramolecular polyamine-phosphate networks on surfaces: preparation and permeability properties of nanofilms |
| url |
http://hdl.handle.net/20.500.12110/paper_1744683X_v15_n7_p1640_Agazzi |
| work_keys_str_mv |
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| _version_ |
1782024509456384000 |