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Pick and release of micro-objects: An actuation-free method to change the conformity of a capillary contact
Iazzolino, Antonio; Tourtit, Youness; Chafai, Adam et al.
2019In Proceedings of MARSS 2019: 4th International Conference on Manipulation, Automation, and Robotics at Small Scales
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Keywords :
Robotics; Textures; Topography; Capillary force; Capillary grippers; Heating source; Joule effects; Micro-objects; Release mechanism; Textured surface; Volume reductions; Grippers
Abstract :
[en] We propose a new 3D printed capillary gripper equipped with a textured surface for actuation-free release. The gripper classically picks up micro-objects exploiting the capillary forces induced by a liquid bridge. Micro-objects are released by decreasing the volume of this bridge through evaporation. This latter can be either natural or speeded up by a heating source (IR laser or Joule effect). The volume reduction changes the topography of the contact (called here conformity) between the gripper and the object. We analyze the gripper performance and rationalize the release mechanism by defining the concept of contact conformity in a capillary context. © 2019 IEEE.
Disciplines :
Mechanical engineering
Author, co-author :
Iazzolino, Antonio ;  Microfluidics Lab, University of Liege, Liège, Belgium
Tourtit, Youness ;  Université de Liège - ULiège > A&M
Chafai, Adam;  TIPs (Tranfers, Interfaces Processes), Université Libre de Bruxelles, Bruxelles, Belgium
Gilet, Tristan  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Microfluidique
Lambert, Pierre;  TIPs (Tranfers, Interfaces & Processes), Université Libre de Bruxelles, Bruxelles, Belgium
Tadrist, Loïc ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Microfluidique
Language :
English
Title :
Pick and release of micro-objects: An actuation-free method to change the conformity of a capillary contact
Publication date :
2019
Event name :
4th International Conference on Manipulation, Automation, and Robotics at Small Scales, MARSS 2019
Event date :
1 July 2019 through 5 July 2019
Audience :
International
Journal title :
Proceedings of MARSS 2019: 4th International Conference on Manipulation, Automation, and Robotics at Small Scales
Publisher :
Institute of Electrical and Electronics Engineers Inc.
Peer reviewed :
Peer reviewed
Name of the research project :
Project T.0050.16 (Bioinspired passive liquid dispensing); FNRS GEQ - 3D microstructuration and microengineering of surfaces with 3 photons lithography (2014-2016); Nanoscribe GT Photonics, co-funding ULB/FNRS Grant UG01415F
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Commentary :
9781728109473
Available on ORBi :
since 12 December 2020

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