The study investigates how the hydrophilic or hydrophobic properties of photosensitizers (PSs) influence their localization and phototoxic effects in a cellular model using liposomes.
Three different PSs with varying hydrophilicity were analyzed for their absorbance and fluorescence properties both in bulk solution and when confined within liposomes, revealing distinct localization patterns.
The findings highlight that the differences in the aggregation state of PSs within liposomes are influenced by their hydrophilicity, which could lead to better optimization of photodynamic therapy drugs.