Research progress of nanomaterial-mediated photodynamic therapy in tumor treatment

Photodynamic therapy (PDT) is a new approach to destroy tumor over past decades due to its high selectivity and minimal invasiveness. Photosensitizers (PSs), plenty of oxygen, and special wavelengths of light irradiation are three indispensable basic elements in the PDT therapeutic procedure. Upon exposed to light irradiation, PSs utilized surround oxygen to produce poisonous reactive oxygen species (ROS) to kill cancer cells through apoptosis...