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Robust and hydrophilic polymeric films with honeycomb pattern and their cell scaffold applications
其他题名具有蜂窝状图案的、坚固的亲水性聚合物薄膜及其细胞支架应用
Li L(李磊); Chen CK(陈财康); Li J(李剑); Zhang AJ(张爱娟); Liu XY(刘新瑜); Xu B(徐斌); Cao SB(曹树斌); Jin GH(金光辉); Ma Z(马志)
2009
发表期刊J. Mater. Chem.
ISSN0959-9428
卷号19期号:18页码:2789-2796
摘要Starting from a commercially available block copolymer, polystyrene-b-polybutadiene-b-polystyrene (SBS), micro-patterned polymer films were successfully prepared by evaporating SBS/carbon disulfide solutions with different concentrations under high humidity. The influence of solution concentration on the pore size and array was investigated in detail. With the increase of solution concentration, regular pore arrays turned into random because of weakened convention. Once the concentration was more than 60 mg mL(-1), a bimodal size distribution appeared. Photo-chemical cross-linking was achieved by exposing the polymer films in deep UV light (wavelength 254 nm), monitored by attenuated total reflective Fourier transform infrared and X-ray photoelectron spectroscopy. After 1 h cross-linking, either solvent resistance or thermal stability or surface wettability of the films was significantly improved. The cross-linked honeycomb structured films became resistant to a wide range of organic solvents and thermally stable up to 350 degrees C, an increase of more than 250 K as compared to the un-crosslinked films. Another beneficial effect of the photo-chemical process was the formation of polar groups on the film surface, changing surface wettability from hydrophobicity to hydrophilicity, enhanced by the micro-patterned surface. The resultant films were non-cytotoxic and hence suitable as cell scaffolds. It was found that hydrophilic, micro-patterned polymer films with a uniform pore size of 3 mm facilitated cell attachment and proliferation.
学科领域高分子化学
部门归属厦门大学; 上海有机所
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收录类别SCI
语种英语
WOS记录号WOS:000265740600021
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文献类型期刊论文
条目标识符http://ir.sioc.ac.cn/handle/331003/25373
专题分析化学研究室
通讯作者Li L(李磊); Jin GH(金光辉); Ma Z(马志)
推荐引用方式
GB/T 7714
Li L,Chen CK,Li J,et al. Robust and hydrophilic polymeric films with honeycomb pattern and their cell scaffold applications[J]. J. Mater. Chem.,2009,19(18):2789-2796.
APA 李磊.,陈财康.,李剑.,张爱娟.,刘新瑜.,...&马志.(2009).Robust and hydrophilic polymeric films with honeycomb pattern and their cell scaffold applications.J. Mater. Chem.,19(18),2789-2796.
MLA 李磊,et al."Robust and hydrophilic polymeric films with honeycomb pattern and their cell scaffold applications".J. Mater. Chem. 19.18(2009):2789-2796.
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