From main-chain conjugated polymer photosensitizer to hyperbranched polymer photosensitizer: expansion of the polymerization-enhanced photosensitization effect for photodynamic therapy

A donor–acceptor-type hyperbranched polymer was firstly designed to show both highly efficient Type-I and Type-II photosensitization effects, and has been successfully used for photodynamic therapy with better efficacy than hemoporfin.