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    题名: Chaotic vessels fabricated by fractal gelatin
    作者: Yang, Lung-Jieh;Sheu, Tsung-Sheng;Chen, Bo-Hong;Lee, Chia-chan
    贡献者: 淡江大學機械與機電工程學系
    关键词: biomedical materials;toxicology;dendritic structure;capillarity;fractals;pattern formation;blood vessels;precipitation;crystallisation;chaos;prosthetics;polymers;gelatin;spin coating;soft lithography
    日期: 2012-08
    上传时间: 2012-12-11 13:43:47 (UTC+8)
    出版者: Stevenage: The Institution of Engineering and Technology
    摘要: A novel gelatin patterning technique applied to making capillary vessels with fractal dendrite configuration is presented. Such a chaotic tree-like pattern has been obtained by precipitating among the gelatin matrix that is spin coated on a glass substrate at room temperature. The weight percentage of the original gelatin solution is over saturated. As the temperature decreases, the gelatin crystallises and forms a natural fractal pattern extruding the film surface. The process conditions of spin coating and the gelatine concentration are varied so that the hydraulic diameters of the fractal branches are verified from 0.1 to 23 μm. The authors therefore fabricated hollow vessels by the polydimethylsiloxane (PDMS) de-moulding of the soft lithography. The water filling test of the PDMS vessel chip is done accordingly. The issue of the toxicity is also addressed.
    關聯: Micro and Nano Letters 7(8), p.705-708
    DOI: 10.1049/mnl.2012.0189
    显示于类别:[機械與機電工程學系暨研究所] 期刊論文


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