Next Article in Journal
Parametric Study of an Electroosmotic Micromixer with Heterogeneous Charged Surface Patches
Next Article in Special Issue
How to Make a Fast, Efficient Bubble-Driven Micromotor: A Mechanical View
Previous Article in Journal
Analysis of Hydrodynamic Mechanism on Particles Focusing in Micro-Channel Flows
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle
Micromachines 2017, 8(7), 198; doi:10.3390/mi8070198

A Viscosity-Based Model for Bubble-Propelled Catalytic Micromotors

1
Department of Mechanics and Engineering Structure, Wuhan University of Technology, Wuhan 430070, China
2
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
3
Infrastructure Management Department, Wuhan University of Technology, Wuhan 430070, China
*
Author to whom correspondence should be addressed.
Academic Editors: Peer Fischer, Stefano Palagi and Tian Qiu
Received: 28 March 2017 / Revised: 17 June 2017 / Accepted: 19 June 2017 / Published: 23 June 2017
(This article belongs to the Special Issue Locomotion at Small Scales: From Biology to Artificial Systems)
View Full-Text   |   Download PDF [3278 KB, uploaded 23 June 2017]   |  

Abstract

Micromotors have shown significant potential for diverse future applications. However, a poor understanding of the propelling mechanism hampers its further applications. In this study, an accurate mechanical model of the micromotor has been proposed by considering the geometric asymmetry and fluid viscosity based on hydrodynamic principles. The results obtained from the proposed model are in a good agreement with the experimental results. The effects of the semi-cone angle on the micromotor are re-analyzed. Furthermore, other geometric parameters, like the length-radius aspect ratio, exert great impact on the velocity. It is also observed that micromotors travel much slower in highly viscous solutions and, hence, viscosity plays an important role. View Full-Text
Keywords: micromotors; viscosity; mechanical model micromotors; viscosity; mechanical model
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wang, Z.; Chi, Q.; Liu, L.; Liu, Q.; Bai, T.; Wang, Q. A Viscosity-Based Model for Bubble-Propelled Catalytic Micromotors. Micromachines 2017, 8, 198.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top