Pyropheophorbide compounds are injected into a host and accumulate in tumor tissue to a higher degree than surrounding normal tissues. When the pyropheophorbide compounds are exposed to a particular wavelength of light the compounds become cytotoxic and destroy the tumor or diseased tissue without causing...http://www.google.es/patents/US5459159?utm_source=gb-gplus-sharePatente US5459159 - Pyropheophorbides and their use in photodynamic therapy
Pyropheophorbides and their use in photodynamic therapy
