Benouhiba, Amine; Walter, Armando; Jahren, Silje Ekroll; Martinez, Thomas; Clavica, Francesco; Obrist, Dominik; Civet, Yoan; Perriard, Yves (2024). Dielectric Elastomer Actuator-Based Valveless Impedance-Driven Pumping for Meso- and Macroscale Applications. Soft robotics, 11(2), pp. 198-206. Mary Ann Liebert 10.1089/soro.2022.0244
Full text not available from this repository. (Request a copy)Impedance pumps are simple designs that allow the generation or amplification of flow. They are fluid-filled systems based on flexible tubing connected to tubing with different impedances. A periodic off-center compression of the flexible tubing causes the fluid to move and generate flow. Wave reflection at the impedance mismatch is the primary driving mechanism of the flow. In addition to their straightforward design, impedance pumps are bladeless, valveless, and pulsatile. These properties are highly sought after by demanding and challenging applications, such as the biomedical field, as they present less risk of damage, disruption, and obstruction when handling viscous and delicate fluids/matter. In this study, we propose a high-performance impedance-driven pumping concept with embedded actuation based on a multilayered tubular dielectric elastomer. This pumping system is made of three parts, a dielectric elastomer actuator tube, a passive tube, and a rigid ring that binds and decouples the two subsystems. The system is able to generate net fluid flow rates up to 1.35 L/min with an internal pressure of 125 mmHg. The soft simplistic design, self-contained concept, and high performances of these pumping systems could make them disruptive in many challenging meso- and macroscale applications in general and in the biomedical field in particular.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research 10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Cardiovascular Engineering (CVE) |
UniBE Contributor: |
Jahren, Silje Ekroll, Clavica, Francesco, Obrist, Dominik |
Subjects: |
600 Technology > 610 Medicine & health 500 Science > 570 Life sciences; biology |
ISSN: |
2169-5180 |
Publisher: |
Mary Ann Liebert |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
21 Sep 2023 09:32 |
Last Modified: |
10 Apr 2024 00:12 |
Publisher DOI: |
10.1089/soro.2022.0244 |
PubMed ID: |
37729065 |
Uncontrolled Keywords: |
artificial muscles dielectric elastomer actuators impedance pump soft actuators valveless pumping |
URI: |
https://boris.unibe.ch/id/eprint/186440 |
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