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  4. The external scent efferent system of selected European true bugs (Heteroptera): A biomimetic inspiration for passive, unidirectional fluid transport
 
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2018
Journal Article
Title

The external scent efferent system of selected European true bugs (Heteroptera): A biomimetic inspiration for passive, unidirectional fluid transport

Abstract
In this work, we present structured capillaries that were inspired by the microstructures of the external scent efferent system as found in different European true bug species (Pentatomidae and Cydnidae). These make use of small, orientated structures in order to facilitate fluid movement towards desired areas where defensive substances are evaporated. Gland channels and microstructures were investigated by means of scanning electron microscopy and abstracted into three-dimensional models. We used these models to create scent channel replicas from different technical substrates (steel and polymers) by means of laser ablation, laser structuring and casting. Video analysis of conducted fluid-flow experiments showed that buginspired, artificial scent fluid channels can indeed transport different fluids (water solutions and oils/lubricants) passively in one direction (velocities of up to 1 mm s21), while halting the fluid movement in the opposite direction. At the end of this contribution, we present a physical theory that explains the observed fluid transport and sets the rules for performance optimization in future work.
Author(s)
Hischen, Florian
Institute for Biomedial Mechatonics; Johannes Kepler University Linz
Buchberger, Gerda
Institute for Biomedical Mechatronics, Johannes Kepler University Linz
Plamadeala, Cristina
Institute for Applied Physics, Johannes Kepler University Linz
Armbruster, Oskar
Institute for Applied Physics, Johannes Kepler University Linz
Heiss, Ernst
Tiroler Landesmuseum
Winands, Kai  orcid-logo
Fraunhofer-Institut für Produktionstechnologie IPT  
Schwarz, Martin
Oberösterreichisches Landesmuseum
Jüttler, Bert
Institute for Applied Geometry, Johannes Kepler University Linz
Heitz, Johannes
Institute for Applied Physics, Johannes Kepler University Linz
Baumgartner, Werner
Institute for Biomedical Mechatronics, Johannes Kepler University Linz
Journal
Interface. Journal of the Royal Society  
Open Access
DOI
10.1098/rsif.2017.0975
Additional full text version
Landing Page
Language
English
Fraunhofer-Institut für Produktionstechnologie IPT  
Keyword(s)
  • biomimetic

  • true bug

  • liquid-surface interaction

  • microfluidic

  • passive fluid transport

  • directional fluid transport

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