Biomimetic Pathways for Assembling Inorganic Thin Films |
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| Authors: | IA Aksay M Trau S Manne I Honma N Yao L Zhou P Fenter PM Eisenberger SM Gruner |
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| Institution: | The authors are at Princeton University, Princeton, NJ 08544-5263, USA. I. A. Aksay, M. Trau, and I. Honma are in the Department of Chemical Engineering and the Princeton Materials Institute; S. Manne and N. Yao are in the Princeton Materials Institute; and L. Zhou, P. Fenter, P. M. Eisenberger, and S. M. Gruner are in the Department of Physics and the Princeton Materials Institute. |
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| Abstract: | Living organisms construct various forms of laminated nanocomposites through directed nucleation and growth of inorganics at self-assembled organic templates at temperatures below 100°C and in aqueous solutions. Recent research has focused on the use of functionalized organic surfaces to form continuous thin films of single-phase ceramics. Continuous thin films of mesostructured silicates have also been formed on hydrophobic and hydrophilic surfaces through a two-step mechanism. First, under acidic conditions, surfactant micellar structures are self-assembled at the solid/liquid interface, and second, inorganic precursors condense to form an inorganic-organic nanocomposite. Epitaxial coordination of adsorbed surfactant tubules is observed on mica and graphite substrates, whereas a random arrangement is observed on amorphous silica. The ability to process ceramic-organic nanocomposite films by these methods provides new technological opportunities. |
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