Table 1.

Composition of hydrogel films.

Hydrogel system	Composition	Crosslinking temperature (◦C)	Crosslinking time
Gantrez® S-97-PEG 10,000	20% Gantrez® S-97, 7.5% PEG 10,000 Da	80	24 hours
PVP-PVA citric acid	15% PVA, 10% PVP, 1.5% citric acid	130	40 minutes
Gantrez® S-97-PEG 10,000-sorbitol	20% Gantrez® S-97, 7.5% PEG 10,000 Da, and 10% Sorbitol	80	24 hours