Table 2.

Fluorescence lifetime decay of 2 µM HSA at different concentrations of CR.

Sample	τ1 (ns)	τ2 (ns)	τ3 (ns)	α 1	α 2	α 3	τ (ns)	χ 2
Free HSA	3.09 ± 0.23	4.72 ± 0.19	6.83 ± 0.36	0.31 ± 0.03	0.04 ± 0.01	0.65 ± 0.03	5.59 ± 0.02	1.09
HSA:CR = 1:1.5	3.22 ± 0.18	5.29 ± 0.22	6.98 ± 0.27	0.34 ± 0.03	0.05 ± 0.01	0.61 ± 0.05	5.63 ± 0.02	1.12
HSA:CR = 1:3.0	3.23 ± 0.15	5.32 ± 0.26	6.96 ± 0.31	0.33 ± 0.02	0.03 ± 0.01	0.64 ± 0.02	5.68 ± 0.01	1.14