Research Article

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

Figure 7

IBU releasing of sample: MSN-40/IBU, MSN-NH2-40/IBU, and MSN-DQ-40/IBU in pH = 7.45 and pH = 4.5 buffer solution.
(a)
(b)
(c)
(d)