Fig. 2From: Targeted imaging of orthotopic prostate cancer by using clinical transformable photoacoustic molecular probeharacterization of cRGD-ICG. a Emission spectra of both cRGD-ICG and cRAD-ICG. b Absorbance spectra of both cRGD-ICG and cRAD-ICG. c In vitro photoacoustic images of cRGD-ICG and cRAD-ICG. d In vitro photoacoustic amplitude signal of a series of concentrations cRGD-ICG and cRAD-ICGBack to article page