| An alternative method to create highly transparent hollow models for flow visualization. | |
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MedLine Citation:
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PMID: 23280072 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Aim: Transparent hollow models are needed to visualize and quantify flow in various applications. To obtain the final transparent model, an intermediate molding of the fluid space with an easily removable material is required. Currently used materials to produce this intermediate molding have limitations: toxicity, cost, and a tendency to penetrate the final model, thereby degrading its transparency. In this work an alternative method is presented using chocolate as the fluid-space molding material. Methods: Starting from a three-dimensional computer aided design (CAD) geometry, a fluid space model of a human aorta was produced out of chocolate. The replica was coated and cast in a block of highly transparent silicone (Sylgard184; Dow-Corning, Midland, MI, USA). After the silicone was cured, the chocolate was removed using hot water. The geometric accuracy of the fluid-space mold and the transparency of the final model were investigated. Results: The mean divergence of the chocolate fluid-space mold from the original geometry was 5.7%. The silicone casting had no defects and perfect transparency for particle tracking. Fluid boundaries were invisible when tested with a fluid whose refractive index matched silicone. Conclusions: The process we describe is a cheap and effective way to create transparent models that have excellent optical quality. |
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Authors:
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Martin Stoiber; Thomas Schlöglhofer; Philipp Aigner; Christian Grasl; Heinrich Schima |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2013-1-2 |
Journal Detail:
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Title: The International journal of artificial organs Volume: - ISSN: 1724-6040 ISO Abbreviation: Int J Artif Organs Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2013-1-2 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7802649 Medline TA: Int J Artif Organs Country: - |
Other Details:
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Languages: ENG Pagination: 0 Citation Subset: - |
Affiliation:
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Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna - Austria and Ludwig-Boltzmann-Cluster for Cardiovascular Research, Vienna - Austria. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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