Infuence of Microstructure in Drug Release Behavior of Silica Nanocapsules

Table 3

Loading degree of ibuprofen determined by UV and TGA for the different micro- and mesoporous materials.

Material	Loading degree (wt%) UV	Loading degree (wt%) TGA	mg IBU/g sample	IBU ads/Vpore mmol IBU/cm^3
Zeolite beta—sample a	20.82	18.37	10.40	0.19
Zeolite beta—sample b	23.15	21.13	11.58	0.24
Zeolite beta—sample c	21.93	19.21	10.98	0.28
SBA 15 (pH = 0)	21.33	23.65	10.67	0.02
SBA 15 (pH = 4.5)	25.77	27.98	12.89	0.08