I&EC 180 |
| Vasiliki Zorbas1, Alfonso Ortiz1, Alan B. Dalton2, Ray H. Baughman3, Gregg R. Dieckmann1, Rockford K. Draper4, Miguel Jose-Yacaman5, and Inga H. Musselman1. (1) Department of Chemistry, University of Texas at Dallas, 2601 North Floyd Road, Richardson, TX 75083-0688, (2) NanoTech Institute, University of Texas at Dallas, 2601 North Floyd Road, Richardson, TX 75083-0688, (3) Departments of Chemistry and Physics and the Nanotech Institute, University of Texas at Dallas, 2601 North Floyd Road, Richardson, TX 75083-0688, (4) Departments of Molecular and Cell Biology and Chemistry, University of Texas at Dallas, 2601 North Floyd Road, Richardson, TX 75083-0688, (5) Department of Chemical Engineering, University of Texas at Austin, 1 University Station Stop C0400, Austin, TX 78712 |
| Isolating individual carbon nanotubes from bundles of nanotubes is a prerequisite for their assembly into useful structures for sensor and nano-electronic device applications. A 20-residue amphiphilic peptide, denoted nano-1, has been demonstrated to disperse single-walled carbon nanotubes (SWNTs) in aqueous solution. We provide atomic force microscopy (AFM) evidence that we can isolate individual peptide-wrapped SWNTs, possibly connected into long fibrillar structures with the peptide, by using a specific sonication and centrifugation procedure. For AFM studies, the appropriate choice of cantilever force constant is important for obtaining reliable measurements of diameter for both nanotubes and peptide-wrapped nanotubes. |
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Industrial and Engineering Chemistry Posters
5:00 PM-7:00 PM, Tuesday, March 30, 2004 Anaheim Convention Center -- Hall A, Poster
Division of Industrial and Engineering Chemistry |