Fig. 2. Characterization of MFTA. (A) TEM image of MFTA. (B) TEM image of MFTA. (C) Size distribution of MTO@TA,MFTA,and TAF (n = 3). (D) Zeta potential of MTO@TA,MFTA,and TAF (n = 3). (E) Element mapping of MFTA. (F) UV-vis absorbance spectra of MFTA, MTO and TAF. (G) The FTIR spectrum of different samples including MFTA, MTO and TAF. (H) The XPS analysis of MFTA. (I) Cumulative MTO release from MFTA at pH 6.5, 7.4 or 8.5. (J) Cumulative MTO release from MFTA with or without laser irradiation. (K) Temperature elevation curves of MFTA with laser on/off. (L) Temperature elevation curves of MFTA at various concentrations. (M) Photothermal conversion efficiency of MFTA, MTO, TAF, TA and FeCl3. (N) Fluorescence intensity of MFTA, MTO, TAF, TA and FeCl3.
