Figure 2.

a) Schematic of the preparation of TBDCR NPs. b) Size distribution of TBDCR NPs. c) The ζ potential of the TBDCR NPs dispersed in deionized water. d) HR‐TEM image of TBDCR NPs (inset: enlarged HR‐TEM image). e) PXRD spectra of TBDCR NPs and PEG crystalline. f) Access of total ROS generation with DCF fluorescence enhancement for TBDCR aggregate (f_w  = 99% in THF/water mixture, 10 µM) and TBDCR NPs (10 µM) upon white light irradiation (50 mW cm⁻²). g) Access of ¹O₂ and HO^•‐ generation with ABDA absorbance decomposition as well as HPF fluorescence enhancement for TBDCR aggregate (f_w  = 99% in THF/water mixture, 10 µM) and TBDCR NPs (10 µM) upon white light irradiation (50 mW cm⁻²), respectively. h) Normalized radioluminescence spectra of TBDCR aggregate (inset: photograph of TBDCR aggregate under direct X‐ray irradiation). i) Total ROS generation presented with DCF fluorescence enhancement for different PSs upon X‐ray irradiation (4 Gy) at different concentrations. j) ¹O₂ generation presented with ABDA (50 µM) decomposition for different concentrations of various PSs upon X‐ray irradiation (4 Gy). k) HO^•− generation presented with HPF (10 µM) fluorescence enhancement for different PSs upon X‐ray irradiation (4 Gy) at different concentrations. Data presented means ± SD, n = 6.