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Fig. 1 | Journal of Nanobiotechnology

Fig. 1

From: Mitochondria-targeting graphene oxide nanocomposites for fluorescence imaging-guided synergistic phototherapy of drug-resistant osteosarcoma

Fig. 1

Characterization and physicochemical properties of TPP-PPG@ICG. Atomic force microscopy (AFM)-based morphological characterizations of a–d TPP-PPG and TPP-PPG@ICG. e UV–vis absorption spectra the indicated materials. The inset shows photographs of aqueous solutions of TPP-PPG, TPP-PPG@ICG, and ICG. f FT-IR spectra of ICG, PPG, TTP-PPG, and TPP-PPG@ICG. g FL intensity of SOSG at 530 nm in PBS, TPP-PPG, TPP-PPG@ICG, and ICG after laser irradiation at 808 nm (0.6 W/cm2, 5 min). h Heating curves of PBS, ICG, TPP-PPG@ICG, and TPP-PPG during a 10-min irradiation. i ICG-release rate of TPP-PPG@ICG in acidic (pH = 5.0) and alkalescent PBS (pH = 7.4) at 37 °C and 43 °C

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