Key points are not available for this paper at this time.
A polyamine process has been demonstrated for the high-yield preparation of single-crystalline gold nanoplates with several 10 microm in size, carried out by heating a concentrated aqueous solution of linear polyethylenimine and HAuCl4 at 100 degrees C. It suggests that the concentration of reactants is crucial to the formation of nanoplates.
Sun et al. (2005) studied this question.