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Acoustic Powered Micro Swimmer and Its Bidirectional Propulsion

Zhan, Ye (2016) Acoustic Powered Micro Swimmer and Its Bidirectional Propulsion. Master's Thesis, University of Pittsburgh. (Unpublished)

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Micro-robots have great potential in biomedical aspects. However, there are no detailed experiments results for micro-swimmer (a micro-channel contains an air bubble inside it) propelling into the human body environment. This thesis describes the micro-swimmer propelling in blood environments, and testing in real blood. Demonstrated through bubble vibration, micro-swimmer can push forward in the blood environment. Meanwhile, I found the phenomenon of the micro-swimmer moving backward in the blood environment. The velocity of stream speed and position of the bubble interface have effect on the micro-swimmer propulsion direction. One the other hand, I find out the micro-swimmer is harder to propel in the blood environment. In order to improve the efficiency of acoustic transmission, I also made the liquid lens to focus sound, which can improve the transfer efficiency of acoustic wave.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Zhan, Yeyez8@pitt.eduYEZ8
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Thesis AdvisorCho, Sung
Committee MemberLee,
Committee MemberChun, Young
Date: 15 September 2016
Date Type: Publication
Defense Date: 12 May 2016
Approval Date: 15 September 2016
Submission Date: 1 August 2016
Access Restriction: 1 year -- Restrict access to University of Pittsburgh for a period of 1 year.
Number of Pages: 75
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Mechanical Engineering
Degree: MS - Master of Science
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: micro-swimmer, bubble vibration, propulsion direction
Date Deposited: 15 Sep 2016 20:12
Last Modified: 15 Sep 2017 05:15


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