Fig. 4. The effect of the P407 stabilised non-loaded shellac NPs on the viability of (A) C. reinhardtii, (B) S. cerevisiae and (C) E. coli cells incubated with different concentrations of shellac NPs (made from fixed ratio of 0.25 wt% ammonium shellac and 0.2 wt% P407) at different incubation times. The ratios on the x-axis show the actual concentrations of both shellac and P407. No BRB was used in these experiments. Here the shellac NP were stabilised by P407 but not coated with ODTAB.
