Fig. 1From: The unpredictable carbon nanotube biocorona and a functionalization method to prevent protein biofoulingFunctionalized MWCNTs significantly increase their diameter upon functionalization with proteins. TEM and AFM images of identical MWCNTs before (left) and after (right) serum functionalization. A significant enlargement of the nanotube diameter is observed upon protein coating. The uneven staining of the functionalized CNTs in the TEM images suggests a discontinuous protein coating on the nanosurfaceBack to article page