“光敏反应”或“光动力学反应”在生物体的作用,被人们认识已有近百年的历史,但把这一反应用于人类癌瘤的定位和冶疗,只是近十多年才受到重视。一般说来,引起生物体上的光敏反应需要有三个基本因素即:光敏物质、适当波长的光和分子状态氧。从60年代以后,美国的Lipson首先研制成功对肿瘤组织有特殊亲和力的光敏物质—血卟 The role of “photosensitive reaction” or “photodynamic reaction” in organisms has been known for nearly 100 years, but this reaction has been used for the localization and treatment of human cancers, but it has only been for more than a decade. Pay attention. In general, there are three basic factors required to cause a photosensitive reaction on an organism: a photosensitive material, light of a suitable wavelength, and molecular oxygen. Since the 1960s, Lipson in the United States has first developed a photosensitizing substance that has a special affinity for tumor tissues.