Table 3.

Mechanical properties of different gelatin-TA crosslinked by silver nitrate (SN) in dry and fully hydrated (swollen) states.

Sample	Tensile strength (MPa)		Elongation at break (%)		Modulus (MPa)
	Dry	Swollen	Dry	Swollen	Dry	Swollen
F-75	33±8	3±0.5a	1.1±0.1	391±19a	3000±540	76±13a
F-75		0.50±0.0b		713±54b		0.12±0.0b
F-100	30±3	-	2.3±1.0	-	1600±500	-
F5-S75	20±6	3.2±0.7a	1.5±0.1	280±49a	1400±360	102±44a
B-75	59±7	3.3±0.7a	1.0±0.1	185±34a	3700±730	48±10a
B-75		0.7±0.1b		348±39b		0.5±0.1b
B5-S75		6.6±0.8a	-	111±11a	-	173±14a

^aFilm samples with water content around 10 wt% (for F2-S75 (F-75), 9.9 wt%, for F5-S75, 11.66 wt%, for B2-S75 (B-75), 12.0 wt%, for B5-S75, 11.55 wt%);

^bFilm samples with water content around 50 wt% (for F-75, 51 wt%, for B-75, 45 wt%).