Radachlorin - Photodynamic therapyFeature PDT is a new Tumor specific therapy which destroys cancer cells only with almost no effects on normal cells as injecting a photosensitizer friendly to cancer cells into the vein and then exposing to a specific wavelength of laser light to excite it. It is less destructive than the conventional chemotherapy or radiotherapy and does not cause a treatment trouble due to resistance because its operation mechanism induces necrosis of cells.PDT utilizes a mechanism that photosensitizer injected into the vein is accumulated selectively in tumor tissue cells...