Semiconductor Quantum Dots (CdX, X = S, Te, Se) Modify Titanium Dioxide Nanoparticles for Photodynamic Inactivation of Leukemia HL60 Cancer Cells

Figure 7

(a) The fluorescence emission spectrum of TiO₂ and CdS-based nanocomposite A with the excitation wavelength of 410 nm. (b) The fluorescence spectra of CdTe with the excitation wavelength of 345 nm. CdTe-based nanocomposite A (CdTe: 25 μg/mL; TiO₂ (A–E): 0 μg/mL, 0.5 μg/mL, 1 μg/mL, 1.5 μg/mL, and 2 μg/mL). (c) The fluorescence spectra of pure TiO₂, CdSe, and CdSe-based nanocomposite B with the excitation wavelength of 410 nm.

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