Encapsulation of a zinc phthalocyanine derivative in self-assembled peptide nanofibers
Erkal, T. S.
Gurek, A. G.
Yaglioglu, H. G.
Guler, M. O.
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/12328
Journal of Materials Chemistry
The Royal Society of Chemistry
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.
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.