Abstract:Forthepastfewyears, with the extensive application of nanoparticle technology in photodynamic therapy (PDT) of cancers, there have been some improvements of the stability of photosensitizers, the tumor targeting,the working depthand the yield of singlet oxygenby a variety of ways. Furthermore, with nanoparticle, PDT also can be combined with some other treatments together. Finally, the use of nanoparticle vectors for PDT is a novel and promising approach which might improve the efficiency of photodynamic therapy for tumors, overcome manyadverse effectsand increase the indications of PDT.

Key words:color: black">Nanoparticles,color: black">Photochemotherapy,Neoplasms,text-decoration: none,text-underline: none">Photosensitizing agents