Figure 1.
Chemical Structure and Optical Properties of NIR Fluorophores. Chemical structure, molecular weight (MW), and logD at pH 7.4 were depicted using MarvinSketch (ChemAxon). Absorbance (Abs) and fluorescence (FL) emission spectra were measured in 100% fetal bovine serum at pH 7.4. a) 700 nm NIR Fluorophores. b) 800 nm NIR Fluorophores.

