Figure 8.

Trypan blue viability of isolated lung CSCs post-PDT. Trypan blue was used as a dye exclusion assay, where viable cells excluding the dye were recorded as a percentage value. All test samples were compared with their respective control cells. No statistical significance was seen when exposing the cells to PS or irradiation alone. A statistically significant decrease p < 0.01 (**) in viability was seen when treating the cells with PDT using 20 µM AlPcS₄Cl and 10 J cm⁻² irradiation, when compared with the respective control samples.