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(A) Absorption spectrum of PolyCD (2 mg mL−1) in PBS (pH 7.4) co-loaded with LVB, RD-NO, and NBF (5 µM). (B) Fluorescence emission spectra of the sample as in (A) (a) and PolyCD (2 mg mL−1) in PBS (pH 7.4) loaded only with LVB at the same concentration (b) recorded at λexc = 240 nm. (C) Fluorescence emission spectra of the sample as in (A) (a) and PolyCD (2 mg mL−1) in PBS (pH 7.4) loaded only with NBF (b) and RD-NO (c) recorded at λexc = 445 nm.
