Table 2.

Estimated critical aggregation concentration (CAC) values obtained in aqueous and bacterial cell culture medium using fluorescence spectroscopy at 25 °C.

Entry	Amphiphilic Compound	CAC Fluorescence (mM) a
		W b	CCM:W c
			CAC1	CAC2
1	1a	0.085	0.004	0.045
2	1b	0.084	0.006	0.048
3	1c	0.010	0.016	0.21
4	2a	4.31	2.89	5.4
5	2b	4.57	3.46	8.4
6	2c	2.34	2.25	3.54
7	3a	0.033	0.018	0.325
8	3b	0.098	0.063	0.33
9	3c	nd d	nd d

^a CAC values from the break point. ^b In water. ^c In the 1/1 bacterial cell culture medium/water. ^d Low solubility.