Nanosilver Breakthrough or Biohazard?. Silver Through the Ages ca. 750 B.C. ca. 50 A.D. 1861.

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Presentation transcript:

Nanosilver Breakthrough or Biohazard?

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

Silver Nanoparticles ~15 nm in diameter

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

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

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

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

Germs!!!

Argyria

Zebra Fish

Normal Fish Larvae

Larvae Grown in Nanosilver

To Learn More

This project was supported by the National Science Foundation under Grant No. ESI 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.