Table 2.

The table shows different FCS (fluorescence correlation spectroscopy) parameter values (T, N, τ_tr, τ_D, D_t) as defined in Eq. (2)

System		T	N	τtr	τD	Dt
Samples	0–4 min	0.05	300	0.015	0.17	150
	5–9 min	0.38	315	0.015	0.18	142
Control (C480)		0.05	210	0.01	0.045	570

The table compares parameter values for excreted bacterial fluorophores for FCS decay with the control dye coumarin 480 (C480). The existence of two species in PC, one with concentration independent lifetime, and the other with concentration dependent life time, should be noted