Table 1.
Fluorescence lifetime values (τi) and their corresponding exponential coefficients (ai) of flavins in HaCaT and SCC4 monocultures. The values were calculated by a three-exponential fit decay analysis.
| τmean (ps) | τ1 (ps) | τ2 (ns) | τ3 (ns) | ||||
| HaCaT | 791 ± 44 | 297 ± 33 | 1.53 ± 0.09 | 5.40 ± 0.54 | |||
| SCC4 | 686 ± 52 | 246 ± 32 | 1.40 ± 0.10 | 4.87 ± 0.46 | |||
| a1 (%) | a2 (%) | a3 (%) | |||||
| HaCaT | 71.62 ± 0.78 | 23.18 ± 1.69 | 10.34 ± 0.39 | ||||
| SCC4 | 72.30 ± 0.88 | 21.94 ± 0.85 | 9.98 ± 0.79 | ||||
The statistical significance of the respective components between HaCaT and SCC4 cells was evaluated using one-way ANOVA test. The p-values were 9.02 × 10−7 for τmean, 9.75 × 10−5 for τ1, 6.05 × 10−4 for τ2 and 6.11 × 10−3 for τ3 whereas for a1, a2 and a3 the p-value was 0.026, 0.014 and 0.112 respectively.