Upconversion Luminescence and Magnetic Turning of NaLuF₄:Yb³⁺/Tm³⁺/Gd³⁺ Nanoparticles and Their Application for Detecting Acriflavine

Figure 9

(a) Conventional slice transmission imaging; (b–f) fluorescence imaging of tail fin tissues of crucian carp with UCNPs@Acriflavine under different excitation power: (b) 0.15 W, (c) 0.2 W, (d) 0.3 W, (e) 0.34 W, and (f) 0.55 W.

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