Several semi interpenetrating network (SIPN) type hydrogels were synthesized by in-situ free radical crosslink copolymerization of acrylamide and crosslinker N,N'-methylene bisacrylamide (MBA) in aqueous solution of sodium alginate (SA). These SIPN hydrogels were characterized by FTIR, NMR SEM, DTA-TGA, XRD, PZC and also by swelling characteristics and network parameters. Adsorption (loading) and release of acetaminophen drug were studied with these hydrogels. Solution pH, crosslinker concentration and monomer to SA weight ratio of the hydrogels were found to have a strong effect on adsorption and in vitro release profile of the drug from the gel matrix. (C) 2013 Elsevier Ltd. All rights reserved.
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Yunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R ChinaYunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R China
Ding, Yabei
Tang, Ruimin
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Yunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R ChinaYunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R China
Tang, Ruimin
Feng, Yan
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Yunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R ChinaYunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R China
Feng, Yan
Yuan, Mingwei
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Yunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R ChinaYunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R China
Yuan, Mingwei
Li, Hongli
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Yunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R ChinaYunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R China
Li, Hongli
Yuan, Minglong
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Yunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R ChinaYunnan Minzu Univ, Natl & Local Joint Engn Res Ctr Green Preparat Tec, Kunming 650500, Peoples R China