| AuNPs | Gold nanoparticles |
| DLS | Dynamic Light Scattering |
| DMEM | Dulbecco’s Modified Eagle Medium |
| EC | effective concentration |
| FBS | Fetal Bovine Serum |
| HAuCl4 | chloroauric acid (hydrogen tetrachloroaurate) |
| MCF-7 | human breast adenocarcinoma cell line |
| NC | negative control |
| PAMAM | polyamidoamine |
| PBS | Phosphate-buffered saline |
| Saos-2 | human osteosarcoma cell line |
| UV–Vis | ultraviolet–visible spectroscopy |
| XTT | 2,3-bis[2-methoxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxanilide |