Figure 1. Colloidal silver in various stages of aggregation, (A) clear yellow sol, (B) dark yellow sol, (C) violet sol , and (D) grayish sol, as aggregation proceeds.
Figure 1. Colloidal silver in various stages of aggregation, (A) clearyellow sol, (B) dark yellow sol, (C) violet sol , and (D) grayish sol,as aggregation proceeds.