Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 22, Issue 32, Pages 11245-11252Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201601026
Keywords
corroles; hydrogen bonds; phenylalanine; porphyrins; self-assembly
Categories
Funding
- BIOSOLENUTI [229927]
- project Implementing advanced interfacial engineering strategies for highly efficient hybrid solar cells (Acronym: IMAGINE-HYSOL)
- European Social Fund (ESF)
- National Resources
- PHOTOPEPMAT (Design, production and Laser PHOTO structuring of self-assembling PEPtides and proteins destined for bioMATerials applications) Greek Secretariat for Research and Technology, ARISTEIA II Excellence is part of the Action [3941]
- European Social Fund
- National Funds
- AngioMatTrain
- Marie Curie Industry Initial Training Network (ITN) [317304]
- Polish National Science Centre [844/NESF-EuroSolarFuels/10/2011/0, ESF-EUROCORES-EuroSolarFuels-10-FP-006]
- [FP7-REGPOT-2008-1]
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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 selfassembled 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.
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