Figure 1.
The dependence of tumoral and nontumoral cell viability on the concentrations of the zinc phthalocyanine photosensitizer. The dependence of the cellular viability on the concentration of the zinc phthalocyanine photosensitizer was determined by measuring the enzyme activity of living cells using the MTT test. The irradiation dose used was 5 Jcm−2. The control represents the irradiated cells without the photosensitizer (the negative control), and its value is set at 100%. Data are presented as ±SD from three independent measurements. The results were considered statistically significant when p < 0.05 and indicated by an asterisk symbol.