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Updated September 2011
Gold Nanoparticle Synthesis
Experiment
Updated September 2011
Gather Supplies
Updated September 2011
Measure 400 mL distilled water into a beaker. Place it on the heated stirring
plate.
Image by HighPoint Learning
Updated September 2011
Place the copper wire or
foil into the beaker.
Suspend the gold wire or coin
with the red alligator clip so
that the clip does NOT touch
the water.
Image by HighPoint Learning
Updated September 2011
Pour in 2 mL sodium citrate and 58 mg salt.
Image by HighPoint Learning
Updated September 2011
Start the stirrer. Adjust the alligator clip so it does not touch the water so that it does not oxidize and contaminate your results.
Image by HighPoint Learning
Updated September 2011
Text boxThis is a small 24K Chinese coin purchased at a local coin dealer.
Image by HighPoint Learning
Updated September 2011
Text box
Attach the black alligator clip to the copper. Turn on the power supply
as well as the stirring plate. After about an hour, the water will turn pink.
Image by HighPoint Learning
Updated September 2011
This is a simple car
battery charger used as a
power supply.
Image by HighPoint Learning
Updated September 2011
After another hour, the water will look darker red or purple.
Pour the resulting liquid in a bottle
for future experiments.
Image by HighPoint Learning
Updated September 2011
This module is one of a series designed to introduce faculty and high school students to the basic concepts of nanotechnology. Each module includes a
PowerPoint presentation, discussion questions, and hands-on activities, when applicable.
The series was funded in part by:
The National Science Foundation
Grant DUE-0702976and the
Oklahoma Nanotechnology Education Initiative
Any opinions, findings and conclusions or recommendations expressed in the material are those of the author and do not necessarily reflect the views of the
National Science Foundation or the Oklahoma Nanotechnology Education Initiative.
Updated September 2011
References
Lisensky, George. Synthesis of Gold Nanoparticles. (2011). Exploring the Nano World. Retrieved from http://mrsec.wisc.edu/Edetc/nanolab/gold/index.html