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Self-Assemblies of Cationic Porphyrins with Functionalized Water-Soluble Single-Walled Carbon Nanotubes

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    0328968 - ÚFCH JH 2010 RIV US eng J - Journal Article
    Kubát, Pavel - Lang, Kamil - Janda, Pavel - Frank, O. - Matulková, Irena - Sýkora, Jan - Civiš, Svatopluk - Hof, Martin - Kavan, Ladislav
    Self-Assemblies of Cationic Porphyrins with Functionalized Water-Soluble Single-Walled Carbon Nanotubes.
    [Samosestavené komplexy kationických porfyrinů s vodorozpustnými uhlíkovými nanotubami.]
    Journal of Nanoscience and Nanotechnology. Roč. 9, č. 10 (2009), s. 5795-5802. ISSN 1533-4880
    R&D Projects: GA ČR GA203/07/1424; GA ČR(CZ) GA203/06/1244; GA AV ČR KAN100500652; GA AV ČR IAA400400804; GA AV ČR KAN200100801; GA MŠMT LC510
    Institutional research plan: CEZ:AV0Z40400503; CEZ:AV0Z40320502
    Keywords : cationic porphyrin * carbon nanotubes * fluorescence spectroscopy * FTIR * Raman spectroscopy
    Subject RIV: CF - Physical ; Theoretical Chemistry
    Impact factor: 1.435, year: 2009

    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.

    Complexy vznikající samosestavením z kationických porfyrinů s funkcionalizovanými uhlíhovými nanotubami ve vodných roztocích byly studovány metodami optické spektroskopie, fluorescenční mikroskopie a mikroskopie atomárních sil. Zhášení fluorescence porfyrinu v přítomnosti nanotub ukazuje na přenos elektronu.
    Permanent Link: http://hdl.handle.net/11104/0175138

     
     
Number of the records: 1  

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