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Controlled roll rotation of a microparticle in a hydro-thermophoretic trap

In recent years, there has been a growing interest in controlling the motion of microparticles inside and outside a focused laser beam. A hydro-thermophoretic trap was recently reported [Nalupurackal et al., Soft Matter 18, 6825 (2022)], which can trap and manipulate microparticles and living cells...

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Autores principales: Nalupurackal, Gokul, Panja, Kingshuk, Chakraborty, Snigdhadev, Roy, Srestha, Goswami, Jayesh, Roy, Basudev, Singh, Rajesh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7615027/
https://www.ncbi.nlm.nih.gov/pubmed/37675386
http://dx.doi.org/10.1103/PhysRevResearch.5.033005
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author Nalupurackal, Gokul
Panja, Kingshuk
Chakraborty, Snigdhadev
Roy, Srestha
Goswami, Jayesh
Roy, Basudev
Singh, Rajesh
author_facet Nalupurackal, Gokul
Panja, Kingshuk
Chakraborty, Snigdhadev
Roy, Srestha
Goswami, Jayesh
Roy, Basudev
Singh, Rajesh
author_sort Nalupurackal, Gokul
collection PubMed
description In recent years, there has been a growing interest in controlling the motion of microparticles inside and outside a focused laser beam. A hydro-thermophoretic trap was recently reported [Nalupurackal et al., Soft Matter 18, 6825 (2022)], which can trap and manipulate microparticles and living cells outside a laser beam. Briefly, a hydro-thermophoretic trap works by the competition between thermoplasmonic flows due to laser heating of a substrate and thermophoresis away from the hotspot of the laser. Here, we extend that work to demonstrate the controlled roll rotation of a microparticle in a hydro-thermophoretic trap using experiments and theory. We experimentally measure the roll angular velocity of the trapped particle. We predict this roll rotation from theoretical computation of the fluid flow. The expression for the angular velocity fits the experimental data. Our method has potential applications in microrheology by employing a different mode of rotation.
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spelling pubmed-76150272023-09-06 Controlled roll rotation of a microparticle in a hydro-thermophoretic trap Nalupurackal, Gokul Panja, Kingshuk Chakraborty, Snigdhadev Roy, Srestha Goswami, Jayesh Roy, Basudev Singh, Rajesh Phys Rev Res Article In recent years, there has been a growing interest in controlling the motion of microparticles inside and outside a focused laser beam. A hydro-thermophoretic trap was recently reported [Nalupurackal et al., Soft Matter 18, 6825 (2022)], which can trap and manipulate microparticles and living cells outside a laser beam. Briefly, a hydro-thermophoretic trap works by the competition between thermoplasmonic flows due to laser heating of a substrate and thermophoresis away from the hotspot of the laser. Here, we extend that work to demonstrate the controlled roll rotation of a microparticle in a hydro-thermophoretic trap using experiments and theory. We experimentally measure the roll angular velocity of the trapped particle. We predict this roll rotation from theoretical computation of the fluid flow. The expression for the angular velocity fits the experimental data. Our method has potential applications in microrheology by employing a different mode of rotation. 2023-07-05 /pmc/articles/PMC7615027/ /pubmed/37675386 http://dx.doi.org/10.1103/PhysRevResearch.5.033005 Text en https://creativecommons.org/licenses/by/4.0/Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/) license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
spellingShingle Article
Nalupurackal, Gokul
Panja, Kingshuk
Chakraborty, Snigdhadev
Roy, Srestha
Goswami, Jayesh
Roy, Basudev
Singh, Rajesh
Controlled roll rotation of a microparticle in a hydro-thermophoretic trap
title Controlled roll rotation of a microparticle in a hydro-thermophoretic trap
title_full Controlled roll rotation of a microparticle in a hydro-thermophoretic trap
title_fullStr Controlled roll rotation of a microparticle in a hydro-thermophoretic trap
title_full_unstemmed Controlled roll rotation of a microparticle in a hydro-thermophoretic trap
title_short Controlled roll rotation of a microparticle in a hydro-thermophoretic trap
title_sort controlled roll rotation of a microparticle in a hydro-thermophoretic trap
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7615027/
https://www.ncbi.nlm.nih.gov/pubmed/37675386
http://dx.doi.org/10.1103/PhysRevResearch.5.033005
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