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Difficult Problems in Nanotechnology 1. Precise and arbitrary manipulation and positioning of large numbers of nanostructures. 2. The development of improved techniques for multi-scale modeling (i.e., unified approaches for the modeling across multiple scales of extended systems of nanostructures). 3. The design, fabrication, and demonstration of an extended nanocomputer system that is integrated on the molecular scale (i.e., the nanometer scale), including both an ultra-dense nanoprocessor and an ultra-dense nanomemory array. 4. Development of techniques for imaging atomic-scale features in real time under a wide range of conditions. 5. Better understanding of the health issues related to nanoparticles and other nanostructures. 6. Bulk synthesis or bulk separation of carbon nanotubes with controlled chirality. 7. Improved theories for understanding and predicting physical processes (chemical reactions, atomic transport, crystal structures, etc.) at nanometer length scales. Page last updated: 12 April 2008 | Top of page |
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