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Comparison of the quantities (ppm) of Pt in whole PC3 human prostate cancer cells after treatment with 5× photoIC50 of dihydroxido complex Pt1 (275 μM), coumarin complex Pt2 (32.5 μM), or cisplatin (500 μM) in the dark and after irradiation with blue light as obtained from XRF. Data were fitted to an AXO calibration standard (elements deposited on a very thin silicon nitride window) in PyMCa (ESRF),70 and analyzed using ImageJ.69
