Fig. 2

Fluorescence intensity of CNOB, MCHB and Doxorubicin. a Photon yields of CNOB (excitation/emission, 500/560 nm), MCHB (570/620 nm) and Doxorubicin (500/560 nm); all drugs were dissolved in DMSO at 15 μM concentration. b At MCHB fluorescence regimen (570/620 nm), CNOB fluorescence is negligible and thus does not interfere with fluorescence-based assessment of MCHB levels. The right bar indicates fluorescence intensity