Table 1

2PE excitation parameters.

FLUOROPHORES
λ (nm)
ηδ2
δ2

Extrinsic fluorophores



Bis-MSB
691/700
6.0 ± 1.8
6.3 ± 1.8
Bodipy
920
17 ± 4.9
-
Calcium Green
740–990
-
~80
Calcofluor
780/820
-
-
Cascade blue
750–800
2.1 ± 0.6
~3
Coumarin 307
776, 700–800
19 ± 5.5
~20
CY2
780/800
-
-
CY3
780
-
-
CY5
780/820
-
-
DAPI (free)
700/720
0.16 ± 0.05
~3.5 *
Dansyl
700
1
-
Dansyl Hydrazine
700
0.72 ± 0.2
-
Dil
700
95 ± 28
-
Filipin
720
-
-
FITC
740–820
-
~25–38 *
Fluorescein (pH ~11)
780
-
38 ± 9.7
Fura-2 (free)
700
11
-
Fura-2 (high Ca)
700
12
-
Hoechst
780/820
-
-
Indo-1 (free)
700
4.5 ± 1.3
12 ± 4
Indo-1 (high Ca)
590/700
1.2 ± 0.4
2.1 ± 0.6
Lucifer Yellow
840–860
0.95 ± 0.3
~2
Nile Red
810
-
-
Oregon Green Bapta 1
800
-
-
Rhodamine B
840
-
210 ± 55
Rhodamine 123
780–860
-
-
Syto 13
810
-
-
Texas red
780
-
-
Triple probe (Dapi, FITC, and Rhodamine)
720/740
-
-
TRITC (rhodamine)
800–840
-
-

Diaspro et al. BioMedical Engineering OnLine 2006 5:36   doi:10.1186/1475-925X-5-36