title: Corrole and Porphyrin Amino Acid Conjugates: Synthesis and Physicochemical Properties.
abstract: A series of conjugates of amino acids with porphyrins and corroles was synthesized. Their self-assembling ability under defined conditions was investigated by scanning electron microscopy. The morphology and photophysical properties of these molecules were studied by absorption and fluorescence spectroscopy in solid, liquid, and self-assembled forms. We observed that both corrole and porphyrin conjugated with the l-phenylalanine-l-phenylalanine peptide to form spherical nanostructures with bathochromic shifts in the emission spectra, indicating the formation of aggregates. These aggregates are characterized by the impressive absorption of light over nearly the whole visible range. The broadening of all bands was particularly strong in the case of corroles. The fluorescence lifetimes of self-assembled species were longer as compared to the solid-state form.
authors.affiliation: Department of Chemistry, University of Crete, Laboratory of Bioinorganic Chemistry, Voutes Campus, 70013, Heraklion, Crete, Greece.
authors.forename: Kostas
authors.initials: K
authors.lastname: Karikis
authors.affiliation: Department of Materials Science and Technology, University of Crete and IESL-FORTH, Voutes Campus, 70013, Heraklion, Crete, Greece.
authors.forename: Evangelos
authors.initials: E
authors.lastname: Georgilis
authors.affiliation: Department of Chemistry, University of Crete, Laboratory of Bioinorganic Chemistry, Voutes Campus, 70013, Heraklion, Crete, Greece.
authors.forename: Georgios
authors.initials: G
authors.lastname: Charalambidis
authors.affiliation: Department of Chemistry, University of Crete, Laboratory of Bioinorganic Chemistry, Voutes Campus, 70013, Heraklion, Crete, Greece.
authors.forename: Athanasia
authors.initials: A
authors.lastname: Petrou
authors.affiliation: Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland.
authors.forename: Olena
authors.initials: O
authors.lastname: Vakuliuk
authors.affiliation: Department of Chemistry, University of Crete, Laboratory of Bioinorganic Chemistry, Voutes Campus, 70013, Heraklion, Crete, Greece.
authors.forename: Theodore
authors.initials: T
authors.lastname: Chatziioannou
authors.affiliation: Department of Chemistry, University of Crete, Laboratory of Bioinorganic Chemistry, Voutes Campus, 70013, Heraklion, Crete, Greece.
authors.forename: Iliana
authors.initials: I
authors.lastname: Raptaki
authors.affiliation: Department of Chemistry, University of Crete, Laboratory of Bioinorganic Chemistry, Voutes Campus, 70013, Heraklion, Crete, Greece.
authors.forename: Sofia
authors.initials: S
authors.lastname: Tsovola
authors.affiliation: Department of Materials Science and Technology, University of Crete and IESL-FORTH, Voutes Campus, 70013, Heraklion, Crete, Greece.
authors.forename: Ioanna
authors.initials: I
authors.lastname: Papakyriacou
authors.affiliation: Department of Materials Science and Technology, University of Crete and IESL-FORTH, Voutes Campus, 70013, Heraklion, Crete, Greece. mitraki@materials.uoc.gr.
authors.forename: Anna
authors.initials: A
authors.lastname: Mitraki
authors.affiliation: Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland. dtgryko@icho.edu.pl.
authors.forename: Daniel T
authors.initials: DT
authors.lastname: Gryko
authors.affiliation: Department of Chemistry, University of Crete, Laboratory of Bioinorganic Chemistry, Voutes Campus, 70013, Heraklion, Crete, Greece. coutsole@chemistry.uoc.gr.
authors.forename: Athanassios G
authors.initials: AG
authors.lastname: Coutsolelos
mesh_terms: D005453:Fluorescence; D049329:Nanostructures; D010649:Phenylalanine / Q000737:chemistry*; D011166:Porphyrins / Q000138:chemical synthesis* / Q000737:chemistry; D013050:Spectrometry, Fluorescence
chemical_list: D011166:Porphyrins; C431863:corrole; D010649:Phenylalanine
keywords: corroles; hydrogen bonds; phenylalanine; porphyrins; self-assembly