Nanogold Sensors Activity
This activity demonstrates how gold nanoparticles can be used to sense chemical agents. Visitors learn about size and property differences of nanoscale materials and how nanoscale materials can be used for sensing applications. During the program, visitors will determine which sports drink contains the highest level of electrolytes by observing the interaction between the gold particles and the drinks.
The addition of electrolytes causes the solution to change from red (far right, untreated gold nanoparticle solution), to purple (left and middle). Higher concentrations of electrolytes cause the solution to appear dark purple.
Materials
- Nanogold Sensors Activity Guide
- 20 mL of pre-made gold nanoparticle solution
- Gatorade Ice (colorless Gatorade)
- Pickle juice
- Flavorless Pedialyte
- Powerade (any colorless flavor)
- 50 1 dram glass vials
- plastic pipets
- Deionized Water
- Bucket for liquid waste
Training Videos
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