Table 2. Particle diameter, entrapment efficiency and drug loading of Dex-PLGA/DOX, A54-Dex-PLGA/DOX micelles and Dex-PLGA/DOX/SPIO, A54-Dex-PLGA/DOX/SPIO micelles.

Material	Drug feeding (%, w/w)	Size (nm)	PI	EE (%)	DL (%)
A54-Dex-PLGA/DOX	5	116	0.121	75.31	3.59
Dex-PLGA/DOX	5	107	0.129	75.37	3.59
A54-Dex-PLGA/DOX/SPIO	5	97	0.146	79.98	3.81
Dex-PLGA/DOX/SPIO	5	87	0.164	79.19	3.77