Figure 1

Fluorescence spectra of label free GdBN. Fluorescence excitation spectrum (λem = 440 nm) (- -) and fluorescence emission spectrum (λexc = 360 nm) (-) of 1 mM GdBN.
Fluorescence spectra of label free GdBN. Fluorescence excitation spectrum (λem = 440 nm) (- -) and fluorescence emission spectrum (λexc = 360 nm) (-) of 1 mM GdBN.