Table 2.
Summary of the effect of surface treatments on Ni particulate uptake
| Metal | Charge (mV) |
Particle size (μm) |
Concentrati on(μg/ml) |
Concentration (μg/cm2 growth area) |
Treatme nt time (hours) |
Cells with endocytized particles (%) |
|---|---|---|---|---|---|---|
| Untreated crystalline NiS | −27 | 2.37 | 10 | 1.78 | 24 | 29.2 |
| Untreated amorphous NiS | +9 | 1 | 10 | 1.78 | 24 | 4.8 |
| Solvent-washed crystalline NiS |
NA | 2.07 | 10 | 1.78 | 24 | 33.3 |
| LiAlH4 reduced crystalline NiS |
NA | 3.76 | 10 | 1.78 | 24 | 51 |
| Solvent-washed amorpohous NiS |
NA | 2.66 | 10 | 1.78 | 24 | 9.9 |
| LiAH4-reduced amorpohus NiS |
NA | 2.26 | 10 | 1.78 | 24 | 27.7 |
CHO cells were treated with particles for 24 hours.