Fig. 3: Sonodynamic and photothermal performance of TiH1.924 nanodots.
From: Preparation of TiH1.924 nanodots by liquid-phase exfoliation for enhanced sonodynamic cancer therapy
a Schematic illustration of sonodynamic and photothermal properties of TiH1.924 nanodots. b Time-dependent oxidation of DPBF indicating ROS generation by US-activated TiH1.924 nanodots. c Comparison of DPBF oxidation by TiH1.924 nanodots, untreated TiH1.924, and commercial TiO2 under US irradiation for 5 min. d ESR spectra demonstrating ROS (1O2) generation for TiH1.924 and TiO2 under US irradiation for 1 min. e, f Normalized absorption spectra (e) and optical bandgaps (f) of TiH1.924 nanodots and TiO2. g Schematic illustration of the activation mechanism of TiH1.924 and TiO2 under US irradiation. h UV-vis-NIR absorbance spectra at different concentrations of TiH1.924 nanodots (4, 8, 16, 32, 64, and 128 µg mL−1). The inset is the photograph of TiH1.924 nanodots with different concentrations. i Concentration-dependent photothermal heating curves of TiH1.924 nanodots (0, 0.02, 0.04, 0.08, 0.16, and 0.32 mg mL−1). j The photothermal profile after laser exposure to reach a steady temperature and then to cool down by turning the laser off. k Heating/cooling profiles for five repeated ON-OFF cycles of laser irradiations.
