Table 1.

Photophysical and parameters of the dyes BLa, BILa and BDILa.

	BLa	BILa	BDILa
λab (nm) a	498	510	526
λem (nm) a	510	524	542
ΦF b	0.64	0.06	0.02
ΦΔ c	0.01	0.27	0.47
ε (M−1 cm−1)	56,000	51,600	41,800

^a in aqueous solution; ^b in methanolic solution; ^c in ethanolic solution.