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Score of AuNPs internalization per cell line by brightfield optical microscopy.
| AuNPs | Ratio 1 | Ratio 2 | Ratio 3 | Ratio 4 |
|---|---|---|---|---|
| L929 | ++ | ++++ | +++ | + |
| MDA-MB-231 | +++ | ++ | ++ | + |
| MCF-7 | + | +++ | ++ | ++ |
| 4T1 | + | + | + | + |
+ Poor presence of AuNPs in the cells (internalized or adsorbed). ++ Presence of AuNPs in the cells. +++ High presence of AuNPs in the cells. ++++ Abundant presence of AuNPs in the cells.
