Hydrophobicity Influence on Swimming Performance of Magnetically Driven Miniature Helical Swimmers
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AbstractHelical microswimmers have been involved in a wide variety of applications, ranging from in vivo tasks such as targeted drug delivery to in vitro tasks such as transporting micro objects. Over the past decades, a number of studies have been established on the swimming performance of helical microswimmers and geometrical factors influencing their swimming performance. However, limited studies have focused on the influence of the hydrophobicity of swimmers' surface on their swimming performance. In this paper, we first demonstrated through theoretical analysis that the hydrophobicity of swimmer's surface material of the swimmer does affect its swimming performance: the swimmer with more hydrophobic surface is exerted less friction drag torque, and should therefore exhibit a higher step-out frequency, indicating that the swimmer with more hydrophobic surface should have better swimming performance. Then a series of experiments were conducted to verify the theoretical analysis. As a result, the main contribution of this paper is to demonstrate that one potential approach to improve the helical microswimmers' swimming performance could be making its surface more hydrophobic.
All Author(s) ListChengwei Ye, Jia Liu, Xinyu Wu, Ben Wang, Li Zhang, Yuanyi Zheng, Tiantian Xu
Journal nameMicromachines
Year2019
Month3
Volume Number10
Issue Number3
PublisherMDPI
Article number175
ISSN2072-666X
LanguagesEnglish-United Kingdom
Keywordsmagnetically driven helical swimmer, step-out frequency, low Reynolds number, hydrophilibity influence
Web of Science Subject CategoriesNanoscience & Nanotechnology;Instruments & Instrumentation;Science & Technology - Other Topics;Instruments & Instrumentation

Last updated on 2020-25-05 at 00:32