BIOTEST

MATERIAL:
-Nanoparticules of gold
-Watch glasses
-Distilled water
-Water with sugar
-NaCl

PROCEDURE:
Firtst we need to know that the nanoparticules of gold change their color when we cahnge the agregation.
We have tree watch glasses
-In the firs watch glasses we put distilled water and gold. But we can't see any reaction.
-In the second watch glasses we put water with sugar and gold. But we can't see any reaction.
-In the third watch glasses we put NaCl and gold. In this reaction the nanoparticules change the color(blue)











Nanoparticules of gold

QUESTION:
Why change the color when we add NaCl?
Because the agregation of nanoparticules change.

BIOTOXICITAT

MATERIAL:
-Silver nanoparticles
-Sugar and yest
-Destilled water
-Hot place
-Ballon
-Spatula
-Pipet

PROCEDURE:
1. We take the nanoparticules of silver. The silver nanoparticules are toxics and damage the live cells.
2. We have three elermeyers: in the firt elermeyer we put sugar, yest and water. In the second elermeyer we put sugar, yest, water and 1ml of silver. And in the third elermeyer we put water, sugar, yest and 3ml of silver.
3.Then we put the elermeyers in the hot place with one ballon clousen the elermeyer.

CONCLUSION:
We see that the experiment procedure CO2 and we see that the ballon inflate,

QUESTION:
Why not inflate the last ballon?
Because the nanoparticules of silver kill the yest.

NANOESCALA

MATERIAL:
-2 beaker
-2 efervecent tablet
-Morter

PROCEDURE:
In the first beaker we put the efervecent table with water. The efervecent table dissolves slowly because is very big and thick.
In the second beaker we put the efervecent table with water,but in this beaker the efervencent table is crushed. For this it dissolves more quickly.

QUESTION:
Why the crushed table was faster?
Because thre are more surface