Bottom-up fabrication from supramolecular hydrogen-bonded scaffolds

INOR 622

Sachin Kinge, s.s.kinge@utwente.nl, Supramolecular Chemistry and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500AE Enschede, Netherlands, Mercedes Crego-Calama, Supramolecular Chemistry and Technology, MESA+ Institute of Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, Netherlands, and David Reinhoudt, Supramolecular Chemistry and Technology, MESA+ Insitute for Nanotechnology, University of Twente, PO Box 217, 75AE Enschede, Netherlands.
Bottom-up fabrication of functional supramolecular nanostructures with supramolecular hydrogen-bonded scaffolds is reported. The well-defined, self-assembled, multi-component, nanostructures based on “rosette” motifs offer excellent incentives. We investigate immobilization and controlled multi-dimensional arrangements of these molecular boxes on solid supports as well as in solution for their application as scaffolds for nanoparticle assembly. We present molecular level investigation and surface morphology of these nanostructures in solution and on surfaces. Further, these nano-constructions are utilized as self-assembled scaffolds for attaching 'functional groups' or nanoparticles for constructing metal containing nanostructures of higher hierarchical order. Such templates can be employed as an alternative to usually applied supramolecular templates, for instance DNA strands and peptide nanotubes. These molecular boxes act as mediators for assembling metal nanoparticles in solution. Further, the molecular boxes act as receptors creating functionalized nanoparticle assemblies. Positioning and patterning of such functional nanostructures by self-assembly processes can realize the future molecular devices.
 

Nanoscience: Synthesis and Characterization
7:00 PM-10:00 PM, Tuesday, August 21, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Inorganic Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007