PTX Conc. (µg/mL) Percentage of cytotoxicity 0 2.12 ± 0.1a 0.5 18.10 ± 1.2b 1 25.42 ± 1.8c 2.5 32.53 ± 2.0d 5 49.58 ± 2.5e 7.5 72.32 ± 3.1f 10 98.91 ± 3.3g

Table 3b: Cytotoxicity of PTX on NCI-H460 cells (Dose fixation study). PTX was incubated with cells for 24 h and % cytotoxicity was observed by MTT assay. Cell death was observed in a concentration (0–10 μg/mL) dependent manner in NCI-H460 cells. 5 μg/mL PTX showed 50% cell death (IC50) in NCI-H460 cells. IC50 values are indicated as the mean ± S.D. of three independent experiments performed. (S.D= standard deviation).