BIOTOXICITY

Material:
- Nanoparticles of silver
- Sugar and yeast
- Distilled water
- Erlenmeyer
- Hot plate
- Ballon
- Spatula
- Pipet

Procedure:
We need to know that the nanoparticles damage the live cells and toxit activity.
- Take three erlenmeyer:
                            1r: Control: One spoon of sugar, yeast and water.
                            2n: The same quantity of sugar, yeast, water and 1ml of nanoparticles of                                               silver.
                            3r: The same quantity of sugar, yeast, water and 3ml of nanoparticles.

- Put the Erlenmeyers in the hot plate.

Conclusions:
We see that the experiment produce CO2 and we see that the ballon inflate.

Question:
Why not inflate the last ballon?
Because the nanoparticles kill the yeast and there isn't fermentation.