3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy

Abstract In several phenomena in biology and industry, it is required to understand the comprehensive behavior of sedimenting micro-particles in fluids. Here, we use the numerical refocusing feature of digital holographic microscopy (DHM) to investigate the slippage effect on micro-particle sediment...

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Autores principales:	Majid Panahi, Ramin Jamali, Vahideh Farzam Rad, Mojtaba Khorasani, Ahamd Darudi, Ali-Reza Moradi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b6cbb20e8dd44ac2bb468d6f9e8eaec2
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id	oai:doaj.org-article:b6cbb20e8dd44ac2bb468d6f9e8eaec2
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spelling	oai:doaj.org-article:b6cbb20e8dd44ac2bb468d6f9e8eaec22021-12-02T16:06:10Z3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy10.1038/s41598-021-92498-02045-2322https://doaj.org/article/b6cbb20e8dd44ac2bb468d6f9e8eaec22021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-92498-0https://doaj.org/toc/2045-2322Abstract In several phenomena in biology and industry, it is required to understand the comprehensive behavior of sedimenting micro-particles in fluids. Here, we use the numerical refocusing feature of digital holographic microscopy (DHM) to investigate the slippage effect on micro-particle sedimentation near a flat wall. DHM provides quantitative phase contrast and three-dimensional (3D) imaging in arbitrary time scales, which suggests it as an elegant approach to investigate various phenomena, including dynamic behavior of colloids. 3D information is obtained by post-processing of the recorded digital holograms. Through analysis of 3D trajectories and velocities of multiple sedimenting micro-particles, we show that proximity to flat walls of higher slip lengths causes faster sedimentation. The effect depends on the ratio of the particle size to (1) the slip length and (2) its distance to the wall. We corroborate our experimental findings by a theoretical model which considers both the proximity and the particle interaction to a wall of different hydrophobicity in the hydrodynamic forces.Majid PanahiRamin JamaliVahideh Farzam RadMojtaba KhorasaniAhamd DarudiAli-Reza MoradiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Majid Panahi Ramin Jamali Vahideh Farzam Rad Mojtaba Khorasani Ahamd Darudi Ali-Reza Moradi 3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy
description	Abstract In several phenomena in biology and industry, it is required to understand the comprehensive behavior of sedimenting micro-particles in fluids. Here, we use the numerical refocusing feature of digital holographic microscopy (DHM) to investigate the slippage effect on micro-particle sedimentation near a flat wall. DHM provides quantitative phase contrast and three-dimensional (3D) imaging in arbitrary time scales, which suggests it as an elegant approach to investigate various phenomena, including dynamic behavior of colloids. 3D information is obtained by post-processing of the recorded digital holograms. Through analysis of 3D trajectories and velocities of multiple sedimenting micro-particles, we show that proximity to flat walls of higher slip lengths causes faster sedimentation. The effect depends on the ratio of the particle size to (1) the slip length and (2) its distance to the wall. We corroborate our experimental findings by a theoretical model which considers both the proximity and the particle interaction to a wall of different hydrophobicity in the hydrodynamic forces.
format	article
author	Majid Panahi Ramin Jamali Vahideh Farzam Rad Mojtaba Khorasani Ahamd Darudi Ali-Reza Moradi
author_facet	Majid Panahi Ramin Jamali Vahideh Farzam Rad Mojtaba Khorasani Ahamd Darudi Ali-Reza Moradi
author_sort	Majid Panahi
title	3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy
title_short	3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy
title_full	3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy
title_fullStr	3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy
title_full_unstemmed	3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy
title_sort	3d monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b6cbb20e8dd44ac2bb468d6f9e8eaec2
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3D monitoring of the surface slippage effect on micro-particle sedimentation by digital holographic microscopy

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