Nanofocused synchrotron X-ray absorption studies of the intracellular redox state of an organometallic complex in cancer cells

Synchrotron nanoprobe X-ray absorption (XAS) studies of a potent organo-osmium arene anticancer complex in ovarian cancer cells at subcellular resolution allow detection and quantification of both Os-II and Os-III species, which are distributed heterogeneously in different areas of the cells.