2007 NSTI Nanotechnology Conference and Trade Show - Nanotech 2007 - 10th Annual

Functionalized Nanocomposite Silica Materials

Andrew M. Dattelbaum

Center for Integrated Nanotechnologies
Los Alamos National Laboratory

My primary research interests are generally centered around nanostructured silica materials, as well as the preparation of functional self-assembled monolayer systems. I work on a number of projects in these areas with the goals of preparing new materials that are bio-mimetic, optically active, or useful for a variety of sensing applications. In particular, I have worked extensively on the preparation, characterization and functionalization of ordered nanocomposite silica thin films prepared by spin-coating or dip-coating techniques. An integral part of my work includes using self-assembly coupled with synthetic chemistry techniques to functionalize silica materials with reactive binding sites. Current projects include the functionalization of silica materials to immobilize active proteins for characterization studies or sensing applications. Further, projects involving the synthesis of functional silica nanoparticles for various sensing and tracking applications are also ongoing. Other projects include the preparation of self-assembled siloxane surfaces that both target a specific analyte and minimize non-specific bio-interactions. Other self-assembly projects include the controlled formation of supported lipid membrane architectures, which mimic specialized cellular membrane structures, by liposome formation or Langmuir-Blodgett techniques. We have a suite of methods available to characterize all of the above materials, including X-ray diffraction, spectroscopic ellipsometry, absorption and fluorescence spectroscopy, infrared spectroscopy and imaging fluorescence microscopy.

Speaking in the special symposium on Composites & Interfaces.

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