Photochemical therapy has become a new area in treating malignant tumour with photosensitive medicines. In recent years, a new photosensitive medicine phcophorbide A (PhA) is developed, with curative effect ten times ...Photochemical therapy has become a new area in treating malignant tumour with photosensitive medicines. In recent years, a new photosensitive medicine phcophorbide A (PhA) is developed, with curative effect ten times as high as that of Hematoporphyrin. In this note, the method of preparing PhA from pteridophyte is reported, the electronic spectra of PhA is qualitatively analyzed by HMO figure theory and the mechanism of photochemically treating cancer is discussed.展开更多
文摘Photochemical therapy has become a new area in treating malignant tumour with photosensitive medicines. In recent years, a new photosensitive medicine phcophorbide A (PhA) is developed, with curative effect ten times as high as that of Hematoporphyrin. In this note, the method of preparing PhA from pteridophyte is reported, the electronic spectra of PhA is qualitatively analyzed by HMO figure theory and the mechanism of photochemically treating cancer is discussed.
