Figure 4
From: Ecotoxicological effects of carbon nanotubes and cellulose nanofibers in Chlorella vulgaris
Optical micrographs of Chlorella vulgaris treated with different nanoparticles at 100 μg ml −1 for 24 hours. Control Bold’s basal (BB) culture medium (A), Control Seine river water (B), Multi-walled carbon nanotubes (MWCNT) in BB culture medium (C), MWCNT in Seine river water (D), cotton cellulose nanofibers (CNFs) in BB culture medium (E) and CNF in Seine river water (F). Note nanoparticle aggregates in C. vulgaris cells. Bars, 5 μm. Magnification 400 × .