Fig. 2

(A) UV-Vis absorption spectra of quercetin, Tween80, Cs@Se NPs, Tw-Cs@Se NPs, and Q-Tw-Cs@Se NPs. (B) The color and clarity of Cs@Se NPs (1), Tw-Cs@Se NPs (2), Q-Tw-Cs@Se NPs (3), and quercetin (4) dissolved in water.

(A) UV-Vis absorption spectra of quercetin, Tween80, Cs@Se NPs, Tw-Cs@Se NPs, and Q-Tw-Cs@Se NPs. (B) The color and clarity of Cs@Se NPs (1), Tw-Cs@Se NPs (2), Q-Tw-Cs@Se NPs (3), and quercetin (4) dissolved in water.