Figure 13.

(a) Cell viability analysis using Sulforhodamine B (SRB) assay. The results of SRB assay corroborate well with the aforementioned assays. The cellular viability of HCT116 cells remained unperturbed even at highest treated concentration of soluble curcumin whereas MoS₂ QDs had shown pronounced killing (< 5%) at 2048 µg/ml concentration. (b) Lactate dehydrogenase assay for cytotoxicity evaluation. The plot shows relative enzyme activity in terms of absorbance. The experiment had three controls parameters, 1. The medium alone; 2. Cells with the medium and 3. The cells treated with 2% Triton X 100. The minimal LDH activity was found in the group treated with soluble curcumin indicating minor cellular lysis while the MoS₂ QDs treated group had shown dose dependent cell lysis with maximum LDH activity at the concentration of 2048 µg/ml. [Graphs were generated and analyzed using GraphPad 8.0 (San Diego, CA)].