Fig. 5.

Optical properties of five IRDye 800CW-tilmanocept (open symbols) conjugates at (circles) 758 nm, (triangles) 780 nm, and (squares) 805 nm. (a) Molar absorptivity $\epsilon$ (per mole of fluorophore). (b) Quantum yield $\mathrm{\Phi }$. (c) Brightness of IRDye 800CW $\epsilon \mathrm{\Phi }$. (d) Specific fluorescence brightness of 800CW-tilmanocept conjugate $\epsilon \mathrm{\Phi }R$ (per mole of tilmanocept). The solid symbols represent unattached IRDye 800CW.