The TEM images taken of silver nanocolloid sample after 14 days of the initial experiment and after 90 days clearly
show that the silver nanoparticles in aqueous mediumwere in the nanometer range (see Fig. 4), and the synthesized silver nanocolloid was very stable in aqueous medium for a very long period. The shapes of the silver nano particles can be identified as spherical, hexagonal, triangular and arbitrary forms.