Robust and hydrophilic polymeric films with honeycomb pattern and their cell scaffold applications

CORC > 厦门大学 > 材料学院－已发表论文

	Robust and hydrophilic polymeric films with honeycomb pattern and their cell scaffold applications
	Li, L. ; Chen, C. K. ; Li, J. ; Zhang, A. J. ; Liu, X. Y. ; Xu, B. ; Gao, S. B. ; Jin, G. H. ; Ma, Z. ; Li L(李磊)
刊名	http://dx.doi.org/10.1039/b820279f
	2009
关键词	SURFACE-MODIFICATION BLOCK-COPOLYMERS BREATH FIGURES POROUS FILMS GROWTH MORPHOLOGY ADHESION ARRAYS MONOLAYER MEMBRANE
英文摘要	National Natural Science Foundation of China [50703032]; Program for New Century Excellent Talents of Ministry of Education of China; NSFC [30701003]; Natural Science Foundation of Fujian Province of China [C0710044]; 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.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/59603]
专题	材料学院－已发表论文
推荐引用方式 GB/T 7714	Li, L.,Chen, C. K.,Li, J.,et al. Robust and hydrophilic polymeric films with honeycomb pattern and their cell scaffold applications[J]. http://dx.doi.org/10.1039/b820279f,2009.
APA	Li, L..,Chen, C. K..,Li, J..,Zhang, A. J..,Liu, X. Y..,...&李磊.(2009).Robust and hydrophilic polymeric films with honeycomb pattern and their cell scaffold applications.http://dx.doi.org/10.1039/b820279f.
MLA	Li, L.,et al."Robust and hydrophilic polymeric films with honeycomb pattern and their cell scaffold applications".http://dx.doi.org/10.1039/b820279f (2009).