Self-Assemblies of Cationic Porphyrins with Functionalized Water-Soluble Single-Walled Carbon Nanotubes
| Autor: | Martin Hof, Jan Sýkora, Ladislav Kavan, I. Matulková, Pavel Jandal, Ota Frank, Svatopluk Civiš, Pavel Kubát, Kamil Lang |
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| Rok vydání: | 2009 |
| Předmět: |
chemistry.chemical_classification
Fluorescence-lifetime imaging microscopy Quenching (fluorescence) Materials science Biomedical Engineering Cationic polymerization Bioengineering General Chemistry Carbon nanotube Sulfonic acid Condensed Matter Physics Photochemistry Fluorescence Porphyrin law.invention chemistry.chemical_compound chemistry law Molecule General Materials Science |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 9:5795-5802 |
| ISSN: | 1533-4880 |
| DOI: | 10.1166/jnn.2009.1257 |
| Popis: | 5,10,15,20-tetrakis(4-N-methylpyridyl)porphyrin, 5,10,15,20-tetrakis(2-N-methylpyridyl)porphyrin, and 5,10,15,20-tetrakis(4-trimethylammoniophenyl)porphyrin form self-assemblies with single-walled carbon nanotubes (SWNT) functionalized by polyaminobenzene sulfonic acid. Both steady-state and time-resolved emission studies revealed efficient quenching of the excited singlet states of the porphyrins. Atomic force microscopy, fluorescence confocal microscopy, and fluorescence lifetime imaging allowed the visualization of individual bundles of SWNTs and the differentiation of porphyrin molecules at specific binding sites of SWNT. |
| Databáze: | OpenAIRE |
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