1. Research Vertically-aligned carbon nanofibers are a form of carbon with many potential applications in chemical/biological sensing and energy storage. The growth of carbon nanofibers is initiated by a nanoparticle catalyst, followed by plasma-enhanced chemical vapor deposition. By patterning the spatial location of the catalyst it is possible to create intricate patterns of nanofibers and to precisely place nanofibers at specific locations. As a demonstration of the ability to create such intricate patterns, nanofibers were patterned in the shape of the NSF logo. Top-view and tilted-view images are shown. Nanotubes and Nanowires as Chemical and Biological Sensors R. Hamers, L.M. Smith, and D.van der Weide, Univ. of Wisconsin, DMR-0210806 http://hamers.chem.wisc.edu/

2. Nanotubes and Nanowires as Chemical and Biological Sensors R. Hamers, L.M. Smith, and D.van der Weide, Univ. of Wisconsin, DMR-0210806 http://hamers.chem.wisc.edu/ Research Vertically-aligned carbon nanofibers are a form of carbon with great potential application in chemical/biological sensing and energy storage. The growth of nanofibers is initiated by a nanoparticle catalyst; by patterning the spatial location of the catalyst it is possible to create intricate patterns of nanofibers and to precisely place nanofibers at specific locations. As a demonstration of the ability to create such intricate patterns, nanofibers were patterned in the shape of the letters “NSF” (top). The bottom view shows an enlarged view of the center of the “N”.

3. Nanotubes and Nanowires as Chemical and Biological Sensors R. Hamers, L.M. Smith, and D.van der Weide, Univ. of Wisconsin, DMR-0210806 http://hamers.chem.wisc.edu/ These images show patterns of carbon nanofibers on silicon surfaces. Electron-beam lithography was used to pattern the spatial location of a nickel nanoparticle catalyst. Subsequent plasma-enhanced chemical vapor deposition in a home-built nanofiber growth chamber grows nanofibers only at the locations of the catalyst. More details of the fabrication process are on the web at: http://hamers.chem.wisc.edu/research/nanofibers/index2.htmhttp://hamers.chem.wisc.edu/research/nanofibers/index2.htm