Fig. 1: FA-ICG probe: structure and spectroscopic characterization.
From: Near-infrared fatty acid molecular probe for image-guided surgery of glioblastoma

a Structure of FA-ICG probe, FA is shown in blue and ICG is shown in red. b Normalized absorbance of FA-ICG in various polar solvents (10 µM). c Fluorescence spectra of FA-ICG in methanol: absorbance (solid blue line) and emission at a fixed excitation wavelength 780 nm (solid yellow line). The synthesis of the probe is described in the supplementary information.