title: Fluorescence study of Ehrlich ascites carcinoma cells after X-irradiation.
abstract: The mechanism of the increase in ultra-violet fluorescence (U.V.F.) intensity of Ehrlich ascites carcinoma cells after X-irradiation were investigated. It was shown that there were two mechanisms: size-dependent (mechanism I) and size-dependent (mechanism II). The basis of mechanism I is most probably an increase in protein content. Mechanism II is related to an increase in the U.V.F. quantum yield, though its biological nature is still unknown.
mesh_terms: D000818:Animals; D002286:Carcinoma, Ehrlich Tumor / Q000032:analysis / Q000532:radiotherapy*; D004307:Dose-Response Relationship, Radiation; D051379:Mice; D009368:Neoplasm Transplantation; D013050:Spectrometry, Fluorescence