Table 1.
Sample | Diameter (nm) | Surface Area (m2/g) | Pore Volume (mL/g) | Pore Diameter (nm) | Functional Group Loading (mmol/g) | ζ Potential (mV) pH = 7.4, 10 mM Sodium Phosphate |
---|---|---|---|---|---|---|
Mesoporous Silica (MS) | 49 (± 5) TEM | 1100 (± 44) | 0.56 (± 0.03) | 3.100 (± 0.007) | 4.283 (0.009) | −39 (± 2) |
MS@APTES | - | 700 (± 28) | 0.152 (± 0.009) | 3.100 (±0.007) | N/A | 1.9 (± 0.2) |
Nonporous Silica (NPS) | 47 (± 7) TEM | 66 (± 3) | N/A | N/A | 0.582 (0.001) | −49 (± 3) |
NPS@APTES | - | 42 (± 2) | N/A | N/A | N/A | 9.6 (± 0.7) |
Min-U-Sil (α-Quartz) | 270 (± 21) DLS | 7.7 (± 0.3) | N/A | N/A | N/A | −67 (± 3) |