Table 2 Optical properties of bone-targeted NIR fluorophores in 10% FBS
From: P800SO3-PEG: a renal clearable bone-targeted fluorophore for theranostic imaging
Fluorophore | P800SO3-Cl | P800SO3 [29] | P800SO3-SH | P800SO3-PEG |
|---|---|---|---|---|
λabs (nm) | 783 | 785 | 810 | 810 |
λem (nm) | 817 | 802 | 845 | 847 |
Stokes shift (nm) | 34 | 17 | 35 | 37 |
ε (M−1 cm−1) | 275,200 | 210,000 | 227,600 | 285,400 |
QY (Φ, %) | 9.28 | 15.10 | 7.08 | 7.34 |
Brightness (M−1 cm−1) | 25,539 | 31,710 | 16,114 | 20,948 |