1. Nanosilver Breakthrough or Biohazard?

3. Silver Through the Ages ca. 750 B.C. ca. 50 A.D. 1861

4. Silver Nanoparticles ~15 nm in diameter

5. How Small is a Nanometer? A nanometer = one billionth of a meter =.000000001 meters

6. How Many Dots? 9 dots per side x 6 sides = 54 dots

7. How Many Dots? 6 dots per cube x 27 cubes = 162 dots

8. How Many Dots? Big Cube 54 dots Small Cubes 162 dots

9. Germs!!!

11. Argyria

13. Zebra Fish

14. Normal Fish Larvae

15. Larvae Grown in Nanosilver

16. To Learn More www.epa.gov/oppt/nano www.nanotechproject.org/publications/archive/silver

17. This project was supported by the National Science Foundation under Grant No. ESI- 0532536. Any opinions, findings, and conclusions or recommendations are those of the author and do not necessarily reflect the views of the Foundation. Additional funding for development of this product was provided by the Nanoscale Science and Engineering Center headquartered at Harvard University and the Center for High-rate Nanomanufacturing headquartered at Northeastern University, University of Massachusetts-Lowell and the University of New Hampshire, with support from the National Science Foundation.