Table 1.

pH, water retention, swelling ratio, and porosity studies of different formulations.

Trials	Chitosan (%)	Hyaluronic acid (%)	pH	% water retention	% swelling ratio	% porosity	% drug release
Fl	1.5	0.2	5.44 ± 0.07	23.07 ± 0.10	108.75 ± 0.56	67.5 ± 0.45	70.84 ± 0.06
F2	1.0	0.2	5.3 ± 0.03	26.60 ± 0.34	87.50 ± 0.57	59.6 ± 0.87	90.59 ± 0.07
F3	1.0	0.3	5.33 ± 0.01	18.36 ± 0.24	81.25 ± 0.37	50.6 ± 0.28	71.69 ± 0.09
F4	1.0	0.4	5.69 ± 0.08	13.04 ± 0.12	68.75 ± 0.67	48.4 ± 0.56	64.51 ± 0.02
F5	1.0	0.5	5.74 ± 0.05	12.04 ± 0.45	62.50 ± 0.26	42.0 ± 0.34	81.04 ± 0.05
F6	0.5	0.2	5.48 ± 0.04	10.11 ± 0.31	48.75 ± 0.56	37.8 ± 0.12	64.78 ± 0.07
F7	0.5	0.3	5.52 ± 0.06	8.04 ± 0.13	41.25 ± 0.64	36.2 ± 0.25	86.49 ± 0.09
F8	0.5	0.4	5.63 ± 0.04	6.97 ± 0.25	37.5 ± 0.59	33.8 ± 0.42	71.97 ± 0.04