Table 2.

The acid sensitivity of the gels. All gels were tested at their minimum gelation concentrations (MGC).

Compound	Structure	DMSO/H2O (1:2) MGC mg/mL	Estimated time for gel dissolution
8		5.4	6 h
9		5.7	6 h
10		4.6	3.5 h
13		5.7	3.5 h
15		4.0	3 h
16		2.0	4 h
17		4.0	3.5 h
18		5.0	5 h
19		2.0	2 h
20		4.0	3 h
22		4.0	2.5 h