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- Nanotechnology145
- Research87
- Government policy62
- National Nanotechnology Initiative (U.S.)35
- Environmental aspects26
- Nanostructured materials industry21
- Finance17
- Technological innovations16
- Health aspects15
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- Nanoscience10
- Nanoparticles9
- Law and legislation8
- Nanostructured materials8
- Appropriations and expenditures7
- Science and state7
- Social aspects7
- Study and teaching7
- Economic aspects6
- Industrial safety6