Mitochondria-targeted rhodamine photosensitizers for tumor fluorescence imaging
Two examples of fluorescent dyes RDMID-C and RDMID-N using rhodamine as the parent were designed and synthesized.The results showed that the dyes exhibited low cytotoxicity,good biocompatibility,and the ability to target mitochondria.The fluorescence dyes showed higher co-localization coefficient with commercial mitochondrial dyes in co-localization experiments,and had longer retention time in tumors,which could be used for tumor fluorescence imaging.