Yolk @ cage-Shell Hollow Mesoporous Monodispersion Nanospheres of Amorphous Calcium Phosphate for Drug Delivery with High Loading Capacity

Table 1 The surface area (S_BET), pore volume, average pore size, and adsorption for samples synthesized under the different conditions

Sample	S_BET ^a /m² g⁻¹	Pore volume^b /cm³ g⁻¹	Adsorption amount /mg g⁻¹
ACP-24-2	17.7495	0.0613	350.4
ACP-48-2	18.9721	0.1808	490.7
ACP-48-10	31.7668	0.2008	1181.9