ULTRAWEAK BIOPHOTON EMISSION IMAGING OF TRANSPLANTED BLADDER-CANCER

Biophoton emission or spontaneous ultraweak light emission has been ob served from almost all living organisms, with intensities ranging from 10(-19) to 10(-16) W/cm(2). The measurement of biophoton emission off ers the attractive possibility of noninvasive monitoring of the underl ying physiological function of a living system. In the present study, ultraweak biophoton emission from mice with transplanted bladder cance r was detected by a two-dimensional photon-counting system, Photon cou nts were observed to be 1.51-4.73 times higher from the regions of unt reated tumor than from normal regions, Our study suggests that this no vel technique may be applicable to the diagnosis of superficial tumors .