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Halloysite nanotube nanocomposite hydrogels with tunable mechanical properties and drug release behavior
作者:Jiaxing Tu, Zheng Cao, Yihan Jing, Changjiang Fan, Chao Zhang, Liqiong Liao
关键字:Nanocomposites, Hydrogel
论文来源:期刊
发表时间:2013年
Nanocomposite hydrogels with tunable mechanical properties and drug release behavior were prepared by halloysite nanotube (HNT), oligo(trimethylene carbonate)–poly(ethylene glycol)–oligo(trimethylene carbonate) diacrylate (TPT), and alginate sodium (AG). The mechanical properties of the hydrogel were greatly enhanced by the addition of small amount of HNT (2 wt%). The drug release behavior of the hydrogels was examined using bovine serum albumin (BSA) as model drug, and TPT hydrogel showed a fickcian diffusion controlled release mechanism, while the BSA transport mechanism in TPT-HNT, TPT-AG, and TPT-AG-HNT hydrogels were anomalous transport. The cytocompatibility of the hydrogel
were verified by the MTT assay, and the hydrogel showed comparable cytocompatibility with the widely recognized poly(ethylene glycol) hydrogel.