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光动力疗法(photodynamic therapy,PDT)是近年来颇受各国学者重视的一种癌症新疗法。这种疗法是利用某些染料类光敏物质在癌组织中积聚的浓度高于周围的正常组织,在激光等照射下可产生对细胞有破坏作用的单线态氧(singlet oxy-gen)及自由基的特性,从而干扰肿瘤细胞的生长并导致
Photodynamic therapy (PDT) is a new cancer therapy that has attracted the attention of scholars in many countries in recent years. This treatment is the use of certain dye-based photosensitive substances in cancer tissue accumulation of higher concentrations than the surrounding normal tissue, under the irradiation of laser and other cells can have a detrimental effect singlet oxygen (singlet oxygen-gen) and free radicals Of the characteristics, thereby interfering with the growth of tumor cells and lead to