Gd₄³⁺[AlPCS₄]₃⁴⁻ Nanoagent Generating ¹O₂ for Photodynamic Therapy

Gd 4 3+ [AlPCS 4 ] 3 4− (AlPCS 4 : aluminium(III) chlorido phthalocyanine tetrasulfonate) inorganic–organic hybrid nanoparticles (IOH‐NPs) are presented as a novel photosensitizer for singlet oxygen ( 1 O 2 ) generation with potential use in localized photodynamic therapy. The saline nanoparticles contain an unprecedented high phthalocyanine content of 81 wt% AlPCS 4 ; they show red emission (680 nm), and efficient 1 O 2 generation. In vitro...