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Synthesis of Zinc Oxide Catalyzed David Kisailus by Silicatein and - - PowerPoint PPT Presentation
Synthesis of Zinc Oxide Catalyzed David Kisailus by Silicatein and - - PowerPoint PPT Presentation
Mentor Synthesis of Zinc Oxide Catalyzed David Kisailus by Silicatein and Biomimetic SAMs Faculty advisor Quyen Truong Dan Morse Internship in NanoSystems, Engineering and Funding Sources Technology (INSET) 2003 National Science
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Overview
Preparation of aqueous zinc oxide precursors (zinc citrate, zinc nitrate, and zinc propionate) Investigation of catalysis of precursors in the presence of silicatein filaments Biomimic silicatein’s catalytic site with functionalized self-assembled monolayers on gold Characterization of products
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Zinc Oxide Synthesis Experiment
Prepared aqueous precursors (zinc nitrate, zinc propionate, zinc citrate) Precursors were mixed with native and denatured (95°C, 90 min) protein filaments at 16°C for 24 hours Samples were centrifuged and washed 4 times to remove unreacted precursors
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Result from SEM (Scanning Electron Microscope) Analyses of Filaments
Zinc oxide + native filaments Zinc oxide + denatured filaments
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Inductively Coupled Plasma (ICP) Analysis of Zinc Oxide Products
0.005 0.01 0.015 0.02 0.025 Zinc citrate + native filaments Zinc citrate + denatured filaments
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Stamp (PDMS) Imidizole Ink wafer Hydroxyl Ink
Soft Lithography : General Techniques
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Hydroxyl Imidizole 1µm
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Future Work
Repeat reaction between SAMs and different semiconductor precursors Analyze crystal structure and shape
- f base catalyzed vs. SAM and
silicatein catalyzed zinc oxide precursors
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