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Contaminant Removal Using Vibrating Surfaces: Nanoscale Insights and a Universal Scaling Law

Rohit Pillai Orcid Logo, David Neilan, Cameron Handel, Saikat Datta Orcid Logo

Nano Letters, Volume: 25, Issue: 11, Pages: 4284 - 4290

Swansea University Author: Saikat Datta Orcid Logo

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DOI (Published version): 10.1021/acs.nanolett.4c05973

Abstract

The development of active self-cleaning surfaces, i.e., surfaces that remove nanoscale contaminants using external forces such as electric or magnetic fields, is critical to many engineering applications. The use of surface vibrations represents a promising alternative, but the underlying nanoscale...

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Published in: Nano Letters
ISSN: 1530-6984 1530-6992
Published: American Chemical Society (ACS) 2025
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URI: https://cronfa.swan.ac.uk/Record/cronfa69234
first_indexed 2025-04-07T22:02:04Z
last_indexed 2025-05-01T04:31:04Z
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spelling 2025-04-30T13:42:42.7729021 v2 69234 2025-04-07 Contaminant Removal Using Vibrating Surfaces: Nanoscale Insights and a Universal Scaling Law 9bd04065d05a966dd173d2f247b2b47f 0000-0001-8962-2145 Saikat Datta Saikat Datta true false 2025-04-07 ACEM The development of active self-cleaning surfaces, i.e., surfaces that remove nanoscale contaminants using external forces such as electric or magnetic fields, is critical to many engineering applications. The use of surface vibrations represents a promising alternative, but the underlying nanoscale physics, in the absence of an intermediate liquid medium, is poorly understood. We used molecular dynamics simulations to explore the use of ultra-high-frequency surface acoustic wave devices for contaminant removal. Our simulations reveal that there exists a critical vibrational energy threshold, determined by the amplitude and frequency of the surface vibrations, that must be surpassed to effectively dislodge contaminant particles. We derive a universal scaling law that links the characteristic size of particles to the optimal vibrational parameters required for their removal. This provides a theoretical framework to aid the development of advanced, scalable self-cleaning surfaces with applications ranging from semiconductors to large-scale industrial systems. Journal Article Nano Letters 25 11 4284 4290 American Chemical Society (ACS) 1530-6984 1530-6992 molecular dynamics; surface acoustic waves; nanoparticle removal; self-cleaning surfaces 19 3 2025 2025-03-19 10.1021/acs.nanolett.4c05973 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University Another institution paid the OA fee S.D. acknowledges the support of the Leverhulme Trustthrough the award of Early Career Fellowship ECF-2021-383. 2025-04-30T13:42:42.7729021 2025-04-07T17:54:17.4462683 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Rohit Pillai 0000-0003-0539-7177 1 David Neilan 2 Cameron Handel 3 Saikat Datta 0000-0001-8962-2145 4 69234__34145__fd97f3929fd34553bd56bb593697e1b2.pdf 69234.VoR.pdf 2025-04-30T13:39:52.3889553 Output 13081275 application/pdf Version of Record true Copyright © 2025 The Authors. Published by American Chemical Society. This publication is licensed under CC-BY 4.0. true eng https://creativecommons.org/licenses/by/4.0/
title Contaminant Removal Using Vibrating Surfaces: Nanoscale Insights and a Universal Scaling Law
spellingShingle Contaminant Removal Using Vibrating Surfaces: Nanoscale Insights and a Universal Scaling Law
Saikat Datta
title_short Contaminant Removal Using Vibrating Surfaces: Nanoscale Insights and a Universal Scaling Law
title_full Contaminant Removal Using Vibrating Surfaces: Nanoscale Insights and a Universal Scaling Law
title_fullStr Contaminant Removal Using Vibrating Surfaces: Nanoscale Insights and a Universal Scaling Law
title_full_unstemmed Contaminant Removal Using Vibrating Surfaces: Nanoscale Insights and a Universal Scaling Law
title_sort Contaminant Removal Using Vibrating Surfaces: Nanoscale Insights and a Universal Scaling Law
author_id_str_mv 9bd04065d05a966dd173d2f247b2b47f
author_id_fullname_str_mv 9bd04065d05a966dd173d2f247b2b47f_***_Saikat Datta
author Saikat Datta
author2 Rohit Pillai
David Neilan
Cameron Handel
Saikat Datta
format Journal article
container_title Nano Letters
container_volume 25
container_issue 11
container_start_page 4284
publishDate 2025
institution Swansea University
issn 1530-6984
1530-6992
doi_str_mv 10.1021/acs.nanolett.4c05973
publisher American Chemical Society (ACS)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description The development of active self-cleaning surfaces, i.e., surfaces that remove nanoscale contaminants using external forces such as electric or magnetic fields, is critical to many engineering applications. The use of surface vibrations represents a promising alternative, but the underlying nanoscale physics, in the absence of an intermediate liquid medium, is poorly understood. We used molecular dynamics simulations to explore the use of ultra-high-frequency surface acoustic wave devices for contaminant removal. Our simulations reveal that there exists a critical vibrational energy threshold, determined by the amplitude and frequency of the surface vibrations, that must be surpassed to effectively dislodge contaminant particles. We derive a universal scaling law that links the characteristic size of particles to the optimal vibrational parameters required for their removal. This provides a theoretical framework to aid the development of advanced, scalable self-cleaning surfaces with applications ranging from semiconductors to large-scale industrial systems.
published_date 2025-03-19T05:28:57Z
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