Table 2. Amount of Silver Detected by ICP-MS in MDA-MB-231 and MCF-7 Cells after Incubation for 1 h with 1 μM of [Ag(L2)2](PF6) and [Ag2(L4)2](PF6)2.
| sample | Ag atoms/cell ± % RSD (n = 3) |
|---|---|
| MDA-MB-231 | |
| control | not detected |
| [Ag(L2)2](PF6) | 8.84 × 107 ± 35 |
| [Ag2(L4)2](PF6)2 | 8.20 × 107 ± 3 |
| MCF-7 | |
| control | not detected |
| [Ag(L2)2](PF6) | 4.91 × 107 ± 3 |
| [Ag2(L4)2](PF6)2 | 2.86 × 107 ± 21 |