Synthesis and Characterization of Poly(acrylic acid)/Poly(vinyl alcohol)-xanthan Gum Interpenetrating Network (IPN) Superabsorbent Polymeric Composites

Al3+ ion cross-linked interpenetrating polymeric network microbeads from tailored natural polysaccharides

“…But it was found that LBG as such cannot develop hydrogel on addition into different crosslinker solutions. So LBG was converted into SCMLBG and later on it was found to be compatible for forming blend with SCMC as the gelling ability of SCMC with different metal ions is quite high [36]. Then the blended polymers were cross-linked with trivalent metal ion to give IPN hydrogel beads.…”

Fabrication of Xanthan gum: Gelatin (Xnt:Gel) Hybrid Composite Hydrogels for Evaluating Skin Wound Healing Efficacy

“…Trisaccharide side chains are composed of mannose, glucuronic acid and mannose linked by β-1,2 and β-1,4 glycosidic bond (Brunchi, 2016& Fitzpatrick, 2013.Approximately half of the terminal mannose residues are linked to pyruvic acid moieties by ketal linkage, while acetyl groups are often present as 6-O substituents on the internal mannose residues (Brunchi, 2016& Fitzpatrick, 2013.Xnt is used as thickening, suspending, and emulsifying agents in pharmaceutics (Karadağ, 2015& Davidson, 1980. It has been used in the hydrophilic matrix formulations for controlled drug release, and it also has applications as a supporting material in enzyme and cell immobilization (Karadağ, 2015;Bhunia, 2013;Bhattacharya, 2012;Alupei, 2002;García-Ochoa, 2000& Davidson, 1980. It was used in the preparation of a biodegradable hydrogels for skin scaffold (Juris, 2011).…”

Biodegradable Polysaccharides for Controlled Drug Delivery

“…Polysaccharides have been added to other synthetic biodegradablep olymers in order to impart desired properties such as improved mechanical strength, swelling capability with retention of shape, endowment of pH sensitivity and enhancement of biodegradability.S uperabsorbent hydrogels with favorable swelling and mechanical properties were obtained by crosslinking various polysaccharides and polysaccharide-synthetic mixtures such as tara gum-acrylica cid, [46] bacterial cellulose-acrylic acid, [47] dextran-poly(e-caprolactone), [48] chitosanpoly(ethylene glycol), [49] chitosan-cyclodextrin, [50] modified hemicellulose-N-isopropylacrylamide, [51] CMC-poly(acrylic acid), [52] modified chitosan-carbopol, [53] alginate-poly(N-vinyl-2pyrrolidone), [54] alginate-polyacrylamide, [55] chitosan-chondroitin-6-sulfate, [56] psyllium-acrylamide and 2-acrylamido-2-methylpropanesulfonic acid, [57] psyllium-acrylic acid, [58] xanthanpoly(acrylic acid)-poly(vinyl alcohol) [59] and chitosan-gelatin, [60] chitosan-poly(vinyla lcohol). [61] These semisynthetic hydrogels have aw ide variety of biomedical applications, such as controlledr elease drugd elivery, [47,57,[61][62] wound dressings, [61,63] tissue engineering [36,64] and gene therapy.…”