Bjerknes forces in motion : long-range translational motion and chiral directionality switching in bubble-propelled micromotors via an ultrasonic pathway

Manipulation of a micromotor's locomotion has been the ultimate aim of scientists and engineers alike. While numerous roadmaps have been cast, the interswitching of the locomotion and directionality of these miniaturized machines remains elusive. In this report, ultrasound is utilized to produc...

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Main Authors: Moo, James Guo Sheng, Mayorga-Martinez, Carmen C., Wang, Hong, Teo, Wei Zhe, Tan, Beng Hau, Luong, Trung Dung, Gonzalez-Avila, Silvestre Roberto, Ohl, Claus-Dieter, Pumera, Martin
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/143681
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1436812020-09-16T08:27:45Z Bjerknes forces in motion : long-range translational motion and chiral directionality switching in bubble-propelled micromotors via an ultrasonic pathway Moo, James Guo Sheng Mayorga-Martinez, Carmen C. Wang, Hong Teo, Wei Zhe Tan, Beng Hau Luong, Trung Dung Gonzalez-Avila, Silvestre Roberto Ohl, Claus-Dieter Pumera, Martin School of Physical and Mathematical Sciences Science::Physics Directionality Micromotors Manipulation of a micromotor's locomotion has been the ultimate aim of scientists and engineers alike. While numerous roadmaps have been cast, the interswitching of the locomotion and directionality of these miniaturized machines remains elusive. In this report, ultrasound is utilized to produce stop/go motion on bubble‐propelled micromotors via Bjerknes forces. An intricate study using high‐speed camera on the interactions between the bubbles and micromotor is undertaken. The reciprocal action between oscillating bubbles aggregates and ejected microbubbles in an acoustic field demonstrate influence on the motion of the micromotor. Long‐range translational motion can be induced into the micromotor, when repulsive forces between bubble aggregates and ejected microbubbles are manifested in an acoustic field by Bjerknes forces. Additionally, such ultrasonic pulses demonstrate capability to change the directionality of the micromotor, where chirality of the locomotion can be switched. Here, introduction of pulses of ultrasonic irradiation demonstrates new capabilities to switch the motion of bubble‐propelled micromotors. 2020-09-16T08:27:45Z 2020-09-16T08:27:45Z 2018 Journal Article Moo, J. G. S., Mayorga-Martinez, C. C., Wang, H., Teo, W. Z., Tan, B. H., Luong, T. D., ... Pumera, M. (2018). Bjerknes forces in motion : long-range translational motion and chiral directionality switching in bubble-propelled micromotors via an ultrasonic pathway. Advanced Functional Materials, 28(25), 1702618-. doi:10.1002/adfm.201702618 1616-3028 https://hdl.handle.net/10356/143681 10.1002/adfm.201702618 25 28 1702618 en Advanced Functional Materials © 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Science::Physics
Directionality
Micromotors
spellingShingle Science::Physics
Directionality
Micromotors
Moo, James Guo Sheng
Mayorga-Martinez, Carmen C.
Wang, Hong
Teo, Wei Zhe
Tan, Beng Hau
Luong, Trung Dung
Gonzalez-Avila, Silvestre Roberto
Ohl, Claus-Dieter
Pumera, Martin
Bjerknes forces in motion : long-range translational motion and chiral directionality switching in bubble-propelled micromotors via an ultrasonic pathway
description Manipulation of a micromotor's locomotion has been the ultimate aim of scientists and engineers alike. While numerous roadmaps have been cast, the interswitching of the locomotion and directionality of these miniaturized machines remains elusive. In this report, ultrasound is utilized to produce stop/go motion on bubble‐propelled micromotors via Bjerknes forces. An intricate study using high‐speed camera on the interactions between the bubbles and micromotor is undertaken. The reciprocal action between oscillating bubbles aggregates and ejected microbubbles in an acoustic field demonstrate influence on the motion of the micromotor. Long‐range translational motion can be induced into the micromotor, when repulsive forces between bubble aggregates and ejected microbubbles are manifested in an acoustic field by Bjerknes forces. Additionally, such ultrasonic pulses demonstrate capability to change the directionality of the micromotor, where chirality of the locomotion can be switched. Here, introduction of pulses of ultrasonic irradiation demonstrates new capabilities to switch the motion of bubble‐propelled micromotors.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Moo, James Guo Sheng
Mayorga-Martinez, Carmen C.
Wang, Hong
Teo, Wei Zhe
Tan, Beng Hau
Luong, Trung Dung
Gonzalez-Avila, Silvestre Roberto
Ohl, Claus-Dieter
Pumera, Martin
format Article
author Moo, James Guo Sheng
Mayorga-Martinez, Carmen C.
Wang, Hong
Teo, Wei Zhe
Tan, Beng Hau
Luong, Trung Dung
Gonzalez-Avila, Silvestre Roberto
Ohl, Claus-Dieter
Pumera, Martin
author_sort Moo, James Guo Sheng
title Bjerknes forces in motion : long-range translational motion and chiral directionality switching in bubble-propelled micromotors via an ultrasonic pathway
title_short Bjerknes forces in motion : long-range translational motion and chiral directionality switching in bubble-propelled micromotors via an ultrasonic pathway
title_full Bjerknes forces in motion : long-range translational motion and chiral directionality switching in bubble-propelled micromotors via an ultrasonic pathway
title_fullStr Bjerknes forces in motion : long-range translational motion and chiral directionality switching in bubble-propelled micromotors via an ultrasonic pathway
title_full_unstemmed Bjerknes forces in motion : long-range translational motion and chiral directionality switching in bubble-propelled micromotors via an ultrasonic pathway
title_sort bjerknes forces in motion : long-range translational motion and chiral directionality switching in bubble-propelled micromotors via an ultrasonic pathway
publishDate 2020
url https://hdl.handle.net/10356/143681
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