Tissue Engineering And Nanotheranostics

“9.61x6.69” b2815 Tissue Engineering and Nanotheranostics

Delivering Nanoparticles to Cancer Cells 211

direction. Also the microtubules are not exactly of the same length:

the one closest to the center, labeled “A”, is the longest; the outer

microtubules, labeled “C” are the shortest; and the middle one, with

intermediate length, is labeled “B”. Figures 3 and 4 provide sketches

of this microtubule blade geometry.

A closer look at an individual microtubule shows that it is com­

posed of longitudinal strands (or “filaments”) consisting of alternating

Fig. 3. An end view of a centriole/microtubule blade geometry.

Fig. 4. A side view of a centriole/microtubule blade.