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Experiment with Colorimetric Gold Nanosensor

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Think of gold as you know it. Gold (Au, atomic number 79) is the most malleable and ductile metal of all; it can be beaten to very thin sheets of material and rolled or bent as desired. This has been known and done for centuries.

In this experiment you will investigate nanoparticles of gold or nano-gold! The properties of nano-gold are very different and it all has to do with the size of the nanoparticles. Download the documents below to lear more about this experiment and watch the information video available below.


Credit : The experiment shown in this video has been adapted from adapted from the experiment reported in: Journal of Chemical Education, Vol. 81 (4), 2004 and from the experiment “Citrate synthesis of gold nanoparticles”, University of Whisconsi-Madison, see: http://www.mrsec.wisc.edu/Edetc/curriculum/index.html; A more detailed description of the synthesis of colloid gold is given in: Keating et al., Journal of Chemical Education 1999, Vol. 76 (7) pp. 949-55.

Music: Aakes by Urtzi Azkue, Creative Commons Share Alike 3.0


Please note that the experiments described in the following training kit use chemicals which need to be used according to MSDS specifications and specific school safety rules. Personal protection must be taken as indicated. As with all chemicals, use precautions. Solids should not be inhaled and contact with skin, eyes, or clothing should be avoided. Wash hands thoroughly after handling. Dispose as indicated. All experiments must be conducted in the presence of an educator trained for science teaching. All experiments will be carried out at your own risk. Aarhus University (iNANO) and the entire NANOYOU consortium assume no liability for damage or consequential losses sustained as a result of the carrying out of the experiments described.

Experiment with Colorimetric Gold Nanosensor by NANOYOU is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. However, this does not apply to some images used in this kit which are protected by copyright. Click here to view a list of these images. Permissions beyond the scope of this license may be available contacting ARTTIC.

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