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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/79547


    Title: Chaotic vessels fabricated by fractal gelatin
    Authors: Yang, Lung-Jieh;Sheu, Tsung-Sheng;Chen, Bo-Hong;Lee, Chia-chan
    Contributors: 淡江大學機械與機電工程學系
    Keywords: biomedical materials;toxicology;dendritic structure;capillarity;fractals;pattern formation;blood vessels;precipitation;crystallisation;chaos;prosthetics;polymers;gelatin;spin coating;soft lithography
    Date: 2012-08
    Issue Date: 2012-12-11 13:43:47 (UTC+8)
    Publisher: Stevenage: The Institution of Engineering and Technology
    Abstract: 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.
    Relation: Micro and Nano Letters 7(8), p.705-708
    DOI: 10.1049/mnl.2012.0189
    Appears in Collections:[機械與機電工程學系暨研究所] 期刊論文

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