Fig. 3

Atomic force microscopy of non-functionalized MWNT and MWNT-DENV3E samples. a, c represent AFM images of different MWNTs before functionalization with the DENV3E protein. Measurements of the typical MWNT height (width) in different samples are shown on b, e. d is an enlarged image of the area marked with a doted square in c. f and h are AFM images of different DENV3E-functionalized MWNT samples. Their respective height (width) measurements are shown on graphs g, i. j depicts an enlarged image of the tube showed in h, and rings of deposited material thought to be the recombinant protein (in red) can be seen on the surface of the tube (in blue). Scale bars are represented