Fig. 2
Characterization of PCpG and PCpG/UCs. a Schematic of the design of FRET pair-labeled PCpG based on hybridization of fluorophore (F, Cy3)-labeled CpG to quencher (Q, BHQ2)-labeled PcCpG. b Schematic of light-activated liberation of Cy3-CpG from the PCpG to enable FRET inhibition. c Fluorescence spectra of Cy3-CpG before and after formation of the PCpG. d Fluorescence spectra of FRET pair-labeled PCpG with increased dose of 365 nm light irradiation (5 mW/cm2). e TEM image of PCpG/UCs. f Upconversion luminescence spectra of PCpG/UCs under 980 nm excitation of different power density. Source data are provided as a Source Data file
