Fig. 2. UV-vis spectral changes for Pt-Fe (50 μM, phenol red-free RPMI-1640 with 5% DMSO) in the dark (a, 120 min) or with indigo (b, 420 nm, 60 min), blue (c, 463 nm, 60 min), green (d, 517 nm, 90 min) and orange (e, 593 nm, 90 min) light irradiation at 298 K; (f) time dependent absorbance changes of Pt-Fe at 300 nm upon irradiation with light of different wavelengths.
