Dresden 2009 – wissenschaftliches Programm

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SYSO: Symposium Self-organizing Surfaces and Interfaces

SYSO 6: Self-Organizing Surfaces and Interfaces V

SYSO 6.6: Vortrag

Donnerstag, 26. März 2009, 15:15–15:30, GÖR 226

Fabrication of Functional Hybrid Nanostructured Materials Based on Self-Assembled Dendrimers Templating Metallic Nanoparticles — •Amir Fahmi, Torsten Pietsch, and Nabil Gindy — Department of Mechanical, Materials and Manufacturing Engineering, Faculty of Engineering, University of Nottingham, UK

Dendrimer-stabilized nanoparticles are promising candidates for the application of functional nanoparticles in bio- and physiological environments. Herein, different types of dendrimers are used to template colloidal nanoparticles, e.g. metals or semiconductors, in aqueous medium at room temperature. The dendrimers acts as a nano-reactor and simultaneously serves as effective reducing- and stabilizing agent. Due to their unique molecular architecture and monodispersity in terms of molecular weight, dendrimers provide excellent control over the particle size and size distribution. Indeed, significantly contribute to direct the structures formation in thin film. Our results indicate that depending on the types and generation of the dendrimers a variety of hybrid nanostructured materials are fabricated. It was also found that the nanoparticles growing within the dendritic matrix is governed by different templating mechanism. One of the main characteristics is their ability to guide the optical properties as a function of the nanoparticle size and their surface composition. The morphology and optical properties of dendrimer-stabilized metal- and semiconductor nanoparticles are investigated with respect to the dendrimer's generation for a variety of applications such as nanoelectronics, bio-molecular technology and catalysis.