Multifunctional Amine Mesoporous Silica Spheres Modified with Multiple Amine as Carriers for Drug Release

Figure 2

Under 50 nm and 20 nm size of the transmission electron microscopy (TEM) picture: MSN-40 (a, d), MSN-NH2-40 (b, e), and MSN-DQ-40 (c, f).

(a)

(b)

(c)

(d)

(e)

(f)