Fig. 5: Demonstration of dual-mode delayed luminescence materials for data encryption and bioimaging applications. | Nature Communications

Fig. 5: Demonstration of dual-mode delayed luminescence materials for data encryption and bioimaging applications.

From: Intermolecular charge transfer as an excited-state modulator for dual delayed luminescence in doping systems

Fig. 5

a Luminescence images of patterns composed of dual delayed emission doped materials under daylight, 365 nm UV excitation, and at various time intervals after UV removal. b Fabrication process of host-guest@F127 NPs via a top-down approach. c Diameter distribution of DBeCh-BP@F127 NPs. Inset: TEM image (scale bar: 100 nm). d Delayed PL spectra (delay time: 1 ms) and (e) phosphorescent decay curves of DBeCh-BP@F127 NPs in H2O (5 mg mL−1) under the 365 nm excitation. f IVIS bioluminescence imaging after cessation of 365 nm UV irradiation (15 mW cm−2). DBeCh–BP@F127 NPs (black dashed circle) were injected into the right abdomen and blank F127 NPs (red dashed circle) served as control on the left side. Signal-to-background ratio for phosphorescence imaging in live mice. Data are presented as mean ± SD (n = 3 independent experiments).

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