Research Article
Gold Nanorods-Based Theranostics for Simultaneous Fluorescence/Two-Photon Luminescence Imaging and Synergistic Phototherapies
Figure 2
(a) UV-Vis absorption spectra of GNRs (black), GNR@SiO2 (blue), GNR@SiO2-NH2 (green), and GNR@SiO2-ICG (red). (b) UV-Vis absorption spectra of GNR@SiO2-ICG (red) and ICG-NHS (black). (c) Fluorescence spectra of GNR@SiO2-ICG and free ICG-NHS at the same concentration, Ex: 716 nm. (d) Zeta potentials of GNRs, GNR@SiO2, GNR@SiO2-NH2, and GNR@SiO2-ICG at pH 7.4.
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