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. 2017 Jan 18;139(6):2512–2519. doi: 10.1021/jacs.6b13399

Figure 1.

Figure 1

(a) Zeta potential of different bioconjugates. (b) Typical absorbance and emission spectra of cHSA-PEO-TPP-Ru, where characteristic peaks of the Ru complexes are preserved in cHSA-PEO-TPP-Ru. (c) Comparison of the photostability of the Ru1 and cHSA-PEO-TPP-Ru based on the absorbance decay under continuous irradiation over extended time periods. (d) 1O2 production yield of cHSA-PEO-TPP-Ru and bare Ru complex (Ru1), as obtained from the photobleaching of the characteristic absorption peak @380 nm of ABDA (100 μM) during irradiation with 470 nm LED light (∼20 mW/cm2, 5 min) in PBS (1×, pH 7.4) based on the same optical density in their first absorption peak. (e) Steady state emission spectra (λex = 460 nm) of Ru1 complex in water (red), Ru1 complex in simulated body fluid (orange), cHSA-PEO-TPP-Ru in water (blue), cHSA-PEO-TPP-Ru in simulated body fluid (green), and Ru(bpy)3 (black) as reference at same optical density. (f) Emission lifetime experiments upon excitation at 460 nm. For the compounds, the same color code is used and an artifact region between 1.2 and 1.35 μs has been removed.