Figure 3. AFM amplitude images obtained at a 20 μm² scan size, of: (A) untreated T. cruzi epimastigotes; (B) T. cruzi epimastigotes after 72 h of treatment with PG 3, 1.26 µM; (C) T. cruzi epimastigotes after 72 h of treatment with benznidazole, 48 µM.