Table 1. Photophysical Parameters of Eosin and Its Derivatives.
ΦF | τF (ns) | ΦT | τT (μs) | |
---|---|---|---|---|
eosin | 0.2a,36,37 | 1.21c,27 | 0.64a,38 | 1.7 ± 0.1c,f,h |
0.24c,27 | 1.2 ± 0.1c,h | 0.71a,39 | 1440 ± 50c,g,h | |
0.8a,37 | ||||
EITC | 0.18c,h | 1.1 ± 0.1c,h | 0.49c,e,h | 2.1 ± 0.1c,f,h |
0.58b,h | 3.1 ± 0.1b,h | 0.06b,e,h | 2.450.1b,f,h | |
EITC–strepi | 0.071 (0.1)c,h | 1.2 ± 0.1 (0.1)c,d,h | 0.10 (0.1)c,f,h | 5.1 ± 0.1 (0.1)c,f,h |
0.008 (1.5)c,h | 0.3 ± 0.1 (1.5)c,d,h | 0.04 (1.6)c,f,h | 4.5 ± 0.1 (1.5)c,f,h | |
1140 ± 50 (1.5)c,g,h |
Water.
DMSO.
PBS buffer.
Average lifetime τav = (α1τ1 + α2τ2)/(α1 + α2).
Calculated using the value of 0.8 for eosin in water.
Air equilibrated solutions.
Nitrogen-saturated solutions.
This work.
Values in brackets are DOL.