Preparation of Silica Nanoparticles Loaded with Nootropics and Their In Vivo Permeation through Blood-Brain Barrier

Figure 2

TEM microphotographs of pure silica nanoparticle (a), silica-based nanocarriers loaded with piracetam (b), pentoxifylline (c), and pyridoxine (d).

(a)

(b)

(c)

(d)