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. 2023 Jan 16;10(6):2206244. doi: 10.1002/advs.202206244

Figure 1.

Figure 1

Characterization of single‐atom Cu/TiO2 nanosonosensitizers. a) TEM, b) HRTEM, and c,d) HAADF‐STEM images of single‐atom Cu/TiO2 nanosonosensitizers. e–h) STEM images e) and elemental mappings of Cu/TiO2 nanosonosensitizers, including f) Ti, g) O, and h) Cu elements. i) XRD patterns of Cu/TiO2 nanosonosensitizers. j) XPS spectrum of Cu/TiO2 and XPS spectrum of Cu/TiO2 in (k) Ti2p region, l) O1s region and m) Cu2p region. n) Fourier transform infrared (FTIR) spectra of Cu/TiO2, Cu/TiO2‐PEG, and NH2‐mPEG2000 from the range of 1000 to 4000 cm−1.