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

Figure 4

Microscopic photographs of histological preparations of control rat brain tissue (a) and rat brain tissues treated with Si-piracetam (b), Si-pentoxifylline (c), and Si-pyridoxine (d) as stained with PDMPO (green fluorescence) in combination with Hoechst 33258 (nuclei, blue fluorescence).

(a)

(b)

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