Dye-polyelectrolyte layer-by-layer self-assembled materials: Molecular aggregation, structural stability, and singlet oxygen photogeneration
The interaction of rose Bengal (RB) and fluorescein (FL) with poly[diallyldimethylammonium] chloride (PDDA) was studied in layer-by-layer self-assembled thin films and in solution. The spectroscopic behavior is explained in terms of dye-dye, dye-polyelectrolyte, and in solution, dye-solvent interact...
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todo:paper_19448244_v2_n6_p1556_Mirenda2023-10-03T16:37:00Z Dye-polyelectrolyte layer-by-layer self-assembled materials: Molecular aggregation, structural stability, and singlet oxygen photogeneration Mirenda, M. Strassert, C.A. Dicelio, L.E. Román, E.S. fluorescein fluorescence layer-by-layer self-assembly rose bengal singlet molecular oxygen Chemical monitoring Diallyldimethylammonium chlorides Dye concentration Layer by layer self assembly Layer-by-layers Molecular aggregation Multi-layer thin film Photogeneration Polyelectrolyte layers Polymer folding Rose Bengal Self assembled films Self assembled material Self assembled thin film Singlet molecular oxygen Singlet oxygen Solvent interactions Spectroscopic behavior Structural stabilities Chemical detection Chlorine compounds Dyes Film preparation Fluorescence Multilayer films Multilayers Polyelectrolytes Polymer films Self assembly Stability Molecular oxygen The interaction of rose Bengal (RB) and fluorescein (FL) with poly[diallyldimethylammonium] chloride (PDDA) was studied in layer-by-layer self-assembled thin films and in solution. The spectroscopic behavior is explained in terms of dye-dye, dye-polyelectrolyte, and in solution, dye-solvent interactions. A correlation among dye hydrophobicity, aggregation tendency, polymer folding in solution, and the stability of self-assembled films is obtained. In spite of the very high dye concentration (∼1 M), RB-PDDA multilayer thin films are able to photogenerate singlet molecular oxygen, as demonstrated by chemical monitoring and IR phosphorescence detection. © 2010 American Chemical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_19448244_v2_n6_p1556_Mirenda |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
fluorescein fluorescence layer-by-layer self-assembly rose bengal singlet molecular oxygen Chemical monitoring Diallyldimethylammonium chlorides Dye concentration Layer by layer self assembly Layer-by-layers Molecular aggregation Multi-layer thin film Photogeneration Polyelectrolyte layers Polymer folding Rose Bengal Self assembled films Self assembled material Self assembled thin film Singlet molecular oxygen Singlet oxygen Solvent interactions Spectroscopic behavior Structural stabilities Chemical detection Chlorine compounds Dyes Film preparation Fluorescence Multilayer films Multilayers Polyelectrolytes Polymer films Self assembly Stability Molecular oxygen |
| spellingShingle |
fluorescein fluorescence layer-by-layer self-assembly rose bengal singlet molecular oxygen Chemical monitoring Diallyldimethylammonium chlorides Dye concentration Layer by layer self assembly Layer-by-layers Molecular aggregation Multi-layer thin film Photogeneration Polyelectrolyte layers Polymer folding Rose Bengal Self assembled films Self assembled material Self assembled thin film Singlet molecular oxygen Singlet oxygen Solvent interactions Spectroscopic behavior Structural stabilities Chemical detection Chlorine compounds Dyes Film preparation Fluorescence Multilayer films Multilayers Polyelectrolytes Polymer films Self assembly Stability Molecular oxygen Mirenda, M. Strassert, C.A. Dicelio, L.E. Román, E.S. Dye-polyelectrolyte layer-by-layer self-assembled materials: Molecular aggregation, structural stability, and singlet oxygen photogeneration |
| topic_facet |
fluorescein fluorescence layer-by-layer self-assembly rose bengal singlet molecular oxygen Chemical monitoring Diallyldimethylammonium chlorides Dye concentration Layer by layer self assembly Layer-by-layers Molecular aggregation Multi-layer thin film Photogeneration Polyelectrolyte layers Polymer folding Rose Bengal Self assembled films Self assembled material Self assembled thin film Singlet molecular oxygen Singlet oxygen Solvent interactions Spectroscopic behavior Structural stabilities Chemical detection Chlorine compounds Dyes Film preparation Fluorescence Multilayer films Multilayers Polyelectrolytes Polymer films Self assembly Stability Molecular oxygen |
| description |
The interaction of rose Bengal (RB) and fluorescein (FL) with poly[diallyldimethylammonium] chloride (PDDA) was studied in layer-by-layer self-assembled thin films and in solution. The spectroscopic behavior is explained in terms of dye-dye, dye-polyelectrolyte, and in solution, dye-solvent interactions. A correlation among dye hydrophobicity, aggregation tendency, polymer folding in solution, and the stability of self-assembled films is obtained. In spite of the very high dye concentration (∼1 M), RB-PDDA multilayer thin films are able to photogenerate singlet molecular oxygen, as demonstrated by chemical monitoring and IR phosphorescence detection. © 2010 American Chemical Society. |
| format |
JOUR |
| author |
Mirenda, M. Strassert, C.A. Dicelio, L.E. Román, E.S. |
| author_facet |
Mirenda, M. Strassert, C.A. Dicelio, L.E. Román, E.S. |
| author_sort |
Mirenda, M. |
| title |
Dye-polyelectrolyte layer-by-layer self-assembled materials: Molecular aggregation, structural stability, and singlet oxygen photogeneration |
| title_short |
Dye-polyelectrolyte layer-by-layer self-assembled materials: Molecular aggregation, structural stability, and singlet oxygen photogeneration |
| title_full |
Dye-polyelectrolyte layer-by-layer self-assembled materials: Molecular aggregation, structural stability, and singlet oxygen photogeneration |
| title_fullStr |
Dye-polyelectrolyte layer-by-layer self-assembled materials: Molecular aggregation, structural stability, and singlet oxygen photogeneration |
| title_full_unstemmed |
Dye-polyelectrolyte layer-by-layer self-assembled materials: Molecular aggregation, structural stability, and singlet oxygen photogeneration |
| title_sort |
dye-polyelectrolyte layer-by-layer self-assembled materials: molecular aggregation, structural stability, and singlet oxygen photogeneration |
| url |
http://hdl.handle.net/20.500.12110/paper_19448244_v2_n6_p1556_Mirenda |
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