Table 1.

Swelling parameters and error analyses for the absorption of water in chitosan/pectin (CPBB) and chitosan/DNA (CDBB) blend hydrogels in different media.

Hydrogel	Diffusion Exponent (n)	k (min−n)	R²	${\mathit{\chi }}^2$	AIC
	Ultrapure water
CPBB	0.081	0.542	0.899	3.1 × 10−4	−26.54
CDBB	0.323	0.126	0.956	0.002	−20.36
Simulated physiological fluid
CPBB	0.126	0.580	0.954	1.8 × 10−4	−17.41
CDBB	0.379	0.271	0.923	0.002	−5.761
Simulated gastric fluid
CPBB	0.401	0.204	0.981	7.9 × 10−4	−16.72
CDBB	0.370	0.086	0.999	1.7 × 10−5	−37.74
Simulated intestinal fluid
CPBB	0.097	0.680	0.928	1.5 × 10−4	−10.61
CDBB	0.143	0.617	0.921	6.8 × 10−4	−9.07