Table 1.

An overview of hydrogel formulation.

Hydrogel sample	Nomenclature	Xanthan gum	Gelatin	Boric acid	Polyethylene glycol	Chitosan	Glutaraldehyde	HPLC water
		(mg)	(mg)	(mg)	(mg)	(mg)	(ml)	(ml)
1	X	600	—	—	—	—	—	100
2	X : Ge : G	600	3	—	—	—	0.5	99.5
3	X : Ge : Peg : G	600	3	—	10	—	0.5	99.5
4	X : Ge : Ch : G	600	3	—	—	20	0.5	99.5
5	X : Ge : Peg : Ch : G	600	3	—	10	20	0.5	99.5
6	X : Ge : B : Ch : G	600	3	3	—	20	0.5	99.5
7	X : Ge : B : Peg : G	600	3	3	10	—	0.5	99.5
8	X : Ge : B : Peg : Ch : G	600	3	3	10	20	0.5	99.5

Abbreviations. Xanthan gum (X), gelatin (Ge), Boric acid (B), polyethylene glycol (Peg), chitosan (Ch), glutaraldehyde (G).