Fig. 2.

Stability‐associated parameters: hydrodynamic diameter (A), zeta potential (B) and polydispersity (C) for SeNPs synthesized by five bacterial strains SeITE02, R2A, R2D, SeITE01 and R1E. Zeta potential, here reported as absolute value, was negative for all the samples. Letters indicate significant difference: samples with the same letter show no significant difference (ANOVA, P < 0.05).