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Proceedings Paper

Thin film mesoscale organization of nanoparticles by using biomolecular peptide tools
Author(s): Emannouil Kasotakis; Athanasia Kostopoulou; Miguel Spuch-Calvar; Maria Androulidaki; Nikos T. Pelekanos; Antonios G. Kanaras; Anna Mitraki; Alexandros Lappas
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Paper Abstract

Templating semiconductor nanoparticles’ growth on the surface of biological self-assembled molecules is a promising avenue over the limitations that top-down techniques may impose on device fabrication. We report on two-dimensional ordered structures of preformed TOPO (trioctylphosphine oxide) capped CdSe@ZnS core-shell quantum dots (Qdots) on self-assembled peptide fibrils. An amphiphilic peptide was employed both as ligand-exchange element (via its cysteine residues) and as a structural scaffold for the ordering of Qdots at the water-chloroform interface. We discuss the topological arrangement of the Qdots as imposed by the peptide fibril film and the impact of the assembly on the materials’ photoluminescent properties, which display signatures of long-range electronic energy transfer.

Paper Details

Date Published: 24 March 2014
PDF: 8 pages
Proc. SPIE 8955, Colloidal Nanoparticles for Biomedical Applications IX, 89551W (24 March 2014); doi: 10.1117/12.2048292
Show Author Affiliations
Emannouil Kasotakis, Univ. of Crete (Greece)
Foundation for Research and Technology-Hellas (Greece)
Athanasia Kostopoulou, Foundation for Research and Technology-Hellas (Greece)
Miguel Spuch-Calvar, Foundation for Research and Technology-Hellas (Greece)
Maria Androulidaki, Foundation for Research and Technology-Hellas (Greece)
Nikos T. Pelekanos, Univ. of Crete (Greece)
Foundation for Research and Technology-Hellas (Greece)
Antonios G. Kanaras, Univ. of Southampton (United Kingdom)
Anna Mitraki, Univ. of Crete (Greece)
Foundation for Research and Technology-Hellas (Greece)
Alexandros Lappas, Foundation for Research and Technology-Hellas (Greece)


Published in SPIE Proceedings Vol. 8955:
Colloidal Nanoparticles for Biomedical Applications IX
Wolfgang J. Parak; Marek Osinski; Kenji I. Yamamoto, Editor(s)

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