Encapsulation of a zinc phthalocyanine derivative in self-assembled peptide nanofibers
Erkal, T. S.
Gurek, A. G.
Yaglioglu, H. G.
Guler, M. O.
Journal of Materials Chemistry
The Royal Society of Chemistry
Garifullin, R., Erkal, T. S., Tekin, S., Ortaç, B., Gürek, A. G., Ahsen, V., ... & Guler, M. O. (2012). Encapsulation of a zinc phthalocyanine derivative in self-assembled peptide nanofibers. Journal of Materials Chemistry, 22(6), 2553-2559.
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/12381
In this article, we demonstrate encapsulation of octakis(hexylthio) zinc phthalocyanine molecules by non-covalent supramolecular organization within self-assembled peptide nanofibers. Peptide nanofibers containing octakis(hexylthio) zinc phthalocyanine molecules were obtained via a straight-forward one-step self-assembly process under aqueous conditions. Nanofiber formation results in the encapsulation and organization of the phthalocyanine molecules, promoting ultrafast intermolecular energy transfer. The morphological, mechanical, spectroscopic and non-linear optical properties of phthalocyanine containing peptide nanofibers were characterized by TEM, SEM, oscillatory rheology, UV-Vis, fluorescence, ultrafast pump-probe and circular dichroism spectroscopy techniques. The ultrafast pump-probe experiments of octakis(hexylthio) zinc phthalocyanine molecules indicated pH controlled non-linear optical characteristics of the encapsulated molecules within self-assembled peptide nanofibers. This method can provide a versatile approach for bottom-up fabrication of supramolecular organic electronic devices. © 2012 The Royal Society of Chemistry.