The conventional method for the synthesis of gold nanoparticles in aqueous solution involves the reduction of gold (III) derivatives by sodium citrate. The morphology of the synthesized gold nanoparticles is thereby determined by the use of specific reducing agent and also the reaction conditions. The objective of the current research is to investigate a new potential non-citrate method for synthesis of gold nanoparticles through the use of aminosilanes as a reducing as well as a stabilizing agent. In this present study, structurally different polyethyleneimine and aminosilanes are used to generate gold nanoparticles in aqueous solution. The nanoparticles are characterized by UV-Visible spectroscopy, Transmission Electron Microscopy (TEM) and also by size and zeta potential measurements. Two different methods of synthesis are used through changing the order of addition of reducing agent leading to generation of gold nanoparticles of different size.

Polyethyleneimine silane as reducing and capping agent for gold nanoparticle synthesis in solution

245th National Meeting (2013)

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