| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2025-12-25 |
| タイトル |
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|
タイトル |
Experimental study on the effect of surface slip with varying zeta potential on particle migration in finite-size microchannels |
|
言語 |
en |
| 著者 |
Zhai, Shaohua
Sasaki, Shogo
Suzuki, Hiroshi
Hidema, Ruri
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| アクセス権 |
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アクセス権 |
embargoed access |
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アクセス権URI |
http://purl.org/coar/access_right/c_f1cf |
| 権利 |
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|
権利情報 |
Copyright 2025 Author(s). Published under an exclusive license by AIP Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.The following article appeared in (Physics of Fluids 37, 062007 (2025)) and may be found at (https://doi.org/10.1063/5.0274573). |
|
言語 |
en |
| 内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
The slip on the fluid–solid interfaces is a crucial factor to consider in microfluidic studies of particle motion. It can alter the zeta potential, thus influencing the separation or focusing behavior of particles. Consequently, the zeta potential serves as a useful tool to study how surface slip impacts particle motion. In this work, the zeta potential of polystyrene particles modified with various surface functional groups was measured in acidic, neutral, and basic environments. The zeta potential of the microchannel wall was also considered. The particle migration trajectory in low aspect ratio microchannels was experimentally investigated under varying flow rates and pH conditions. The radial migration probability distribution and focusing regions were roughly determined through quantitative analysis. Furthermore, the variations in the peak value of radial migration density vs particle zeta potential under different flow rates were summarized. The results demonstrated that the particle radial migration in the channel differs among three surface-modified particles under varying pH conditions. Slip could affect the velocity gradient around the particle surface, qualitatively explaining these differences. Additionally, the peak value of distribution density decreases with increasing particle zeta potential, while increasing flow rate makes this variation less obvious. This study provides experimental evidence for the slip effect on particle migration in microchannels and contributes to understanding the role of slip in particle motion at the microscale. |
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言語 |
en |
| 出版者 |
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|
出版者 |
AIP Publishing |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.1063/5.0274573 |
| 収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
1070-6631 |
| 書誌情報 |
en : Physics of Fluids
巻 37,
号 6,
p. 062007,
発行日 2025-06
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| ファイル公開日 |
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日付 |
2026-06-01 |
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日付タイプ |
Available |
062007_1_5_0274573.pdf (3.4 MB)
