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. 2019 Jun 10;14:4319–4331. doi: 10.2147/IJN.S203077

Figure 1.

Figure 1

Schematic diagram for the synthesis of NaYF4:Yb,Er@PE3@Fe3O4 upconversion nanoprobes and subsequent use in photothermal therapy.

Abbreviations: HSP, heat shock protein; MRI, magnetic resonance imaging; UCL, upconversion luminescence.