title: Self-assemblies of cationic porphyrins with functionalized water-soluble single-walled carbon nanotubes.
abstract: 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.
authors.affiliation: J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejskova 3, 18223 Praha 8, Czech Republic.
authors.forename: Pavel
authors.initials: P
authors.lastname: Kubát
authors.forename: Kamil
authors.initials: K
authors.lastname: Lang
authors.forename: Pavel
authors.initials: P
authors.lastname: Jandal
authors.forename: Ota
authors.initials: O
authors.lastname: Frank
authors.forename: Irena
authors.initials: I
authors.lastname: Matulková
authors.forename: Jan
authors.initials: J
authors.lastname: Sýkora
authors.forename: Svatopluk
authors.initials: S
authors.lastname: Civis
authors.forename: Martin
authors.initials: M
authors.lastname: Hof
authors.forename: Ladislav
authors.initials: L
authors.lastname: Kavan