Biodegradable mesostructured polymer membranes.
Biodegradable mesostructured polymer membranes.
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DOI:
10.1021/nl402251x
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发表时间:
2013-09-11
期刊:
影响因子:
10.8
通讯作者:
Kohane DS
中科院分区:
文献类型:
--
作者:
Tian B;Shankarappa SA;Chang HH;Tong R;Kohane DS
The extracellular matrix (ECM) has a quasi-ordered reticular mesostructure with feature sizes on the order of tenths of to a few hundred nanometers. Approaches to preparing biodegradable synthetic scaffolds for engineered tissues that have the critical mesostructure to mimic ECM are few. Here we present a simple and general solvent evaporation-induced self-assembly (EISA) approach to preparing concentrically reticular mesostructured polyol-polyester membranes. The mesostructures were formed by a novel self-assembly process without covalent or electrostatic interactions, which yielded feature sizes matching those of ECM. The mesostructured materials were nonionic, hydrophilic, and water-permeable, and could be shaped into arbitrary geometries such as conformally-molded tubular sacs and micropatterned meshes. Importantly, the mesostructured polymers were biodegradable, and were used as ultrathin temporary substrates for engineering vascular tissue constructs.
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