CP and cancer: Multiple-action combined therapy is a new concept for cancer treatment.163–167 The Dai group have developed a nano-regulator for the synergistic treatment by GT and PTT (Pry-Ps@CP-PEG).168 In this nanosystem, a hydrophobic polysulfide H2S donor (Pry-Ps) was encapsulated using amphiphilic conjugated polymers (CP-PEG), resulting in Pry-Ps@CP-PEG with good biocompatibility.