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. 2020 May 20;6(21):eaaz8400. doi: 10.1126/sciadv.aaz8400

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Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 2 — (A) Size distribution of CRET-NPs. (B) TEM image of CRET-NPs. (C) EDS mapping of CRET-NPs. Atomic distribution shows colocalization of TCPO and Ce6 in the particle cores. Scale bar, 100 nm. (D) CL images of CRET-NPs in the presence of TCPO and/or H₂O₂. (E) CL images of CRET-NPs in the presence of H₂O₂ at different wavelengths of emission filter (top). Quantification of the CL signal from CRET-NPs (bottom). Error bars represent the SD (n = 3). a.u., arbitrary units. (F) DPC images (left) and vector field images (right) of Ce6-NPs and CRET-NPs. The vector field images through the Ronchigram show the presence and direction of electrons in the CRET-NPs.