At the top dose of 15nM there was a slight increase in the fluorescence response of TK6 cells exposed to both amine- and HDA-QD, suggesting low-level uptake, but this did not achieve significance.
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Genotoxic capacity of Cd/Se semiconductor quantum dots with differing surface chemistries.
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The sentences
In contrast, a highly significant decrease (>50% RPD) in cell viability was noted following the exposure of TK6 cells to HDA-QD at ≥10nM ( Figure 4C ).