Table 3.

Fluorescence decay parameters of Daidzein in aqueous system and γ-CDx matrix

Sample	τ1 (ns)	τ2 (ns)	τ3 (ns)	a1	a2	a3	τ̄ (ns)	χ2r	DW
Daid in water	1.32	----	----	1.0	----	----	1.32	1.04	1.84
Daid + 10mM γ-CDx	1.50	2.55	----	0.68	0.32	----	1.97	0.99	1.86
Daid+ 20mM γ-CDx	1.32	2.38	----	0.41	0.59	----	2.09	1.07	1.79

(λ_ex = 340 nm, λ_em = 470 nm), FWHM ≈ 935 ps, $\overline{\tau }=\frac{{\displaystyle \sum _i}{a}_i{\tau }_i^2}{{\displaystyle \sum _i}{a}_i{\tau }_i}$

γ-CDx solutions are prepared in water, [Daidzein] = 10 μM