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The Deposition of Submicron Fluorescent Aerosol Particles by a Closed-Loop Flow System

An aerosol flow system has been constructed to mimic the delivery of particles to the air-liquid interface. A colloidal suspension of submicron fluorescent core-shell silica-based particles was sprayed by an ultrasonic nebulizer. The dynamics of the aerosol settling was investigated by numerical sim...

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Main Authors: Ferry Faizal, Suryani Saallah, Azusa Takagi, I. Wuled Lenggoro
Format: Article
Language:English
English
Published: 2018
Subjects:
Q Science (General)
T Technology (General)
Online Access:https://eprints.ums.edu.my/id/eprint/25170/1/The%20Deposition%20of%20Submicron%20Fluorescent%20Aerosol%20Particles%20by%20a%20Closed-Loop%20Flow%20System.pdf
https://eprints.ums.edu.my/id/eprint/25170/7/The%20Deposition%20of%20Submicron%20Fluorescent%20Aerosol%20Particles%20by%20a%20Closed-Loop%20Flow%20System%201.pdf
https://eprints.ums.edu.my/id/eprint/25170/
https://doi.org/10.11203/jar.33.102
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spelling my.ums.eprints.251702021-04-19T04:58:35Z https://eprints.ums.edu.my/id/eprint/25170/ The Deposition of Submicron Fluorescent Aerosol Particles by a Closed-Loop Flow System Ferry Faizal Suryani Saallah Azusa Takagi I. Wuled Lenggoro Q Science (General) T Technology (General) An aerosol flow system has been constructed to mimic the delivery of particles to the air-liquid interface. A colloidal suspension of submicron fluorescent core-shell silica-based particles was sprayed by an ultrasonic nebulizer. The dynamics of the aerosol settling was investigated by numerical simulation to determine the carrier gas flow rate, which was further verified through experimentation. Fluorescent microscopy, a non-vacuum imaging technique, was used to observe the particles deposited on the substrate. It was found that the apparent (fluorescent) size distribution was shifted from 2.9 ± 6.0 μm to 1.7 ± 2.2 μm, which is correlated to the shift in the aggregate size from 0.70 μm to 0.24 μm due to the changes in the colloidal suspension concentration. In addition, the uniformity of the particles dispersed on the substrate was not significantly affected by the suspension’s concentration, as confirmed by the inter-particle distance analysis. It is therefore suggested that the method presented here may potentially be applied for the deposition and analysis of submicron particles on various types of substrate (i.e. air-liquid interface) without the need for vacuum imaging analysis (e.g. electron microscopy). 2018 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/25170/1/The%20Deposition%20of%20Submicron%20Fluorescent%20Aerosol%20Particles%20by%20a%20Closed-Loop%20Flow%20System.pdf text en https://eprints.ums.edu.my/id/eprint/25170/7/The%20Deposition%20of%20Submicron%20Fluorescent%20Aerosol%20Particles%20by%20a%20Closed-Loop%20Flow%20System%201.pdf Ferry Faizal and Suryani Saallah and Azusa Takagi and I. Wuled Lenggoro (2018) The Deposition of Submicron Fluorescent Aerosol Particles by a Closed-Loop Flow System. J-STAGE, 33 (2). pp. 102-107. ISSN 0912-2834 https://doi.org/10.11203/jar.33.102
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic Q Science (General)
T Technology (General)
spellingShingle Q Science (General)
T Technology (General)
Ferry Faizal
Suryani Saallah
Azusa Takagi
I. Wuled Lenggoro
The Deposition of Submicron Fluorescent Aerosol Particles by a Closed-Loop Flow System
description An aerosol flow system has been constructed to mimic the delivery of particles to the air-liquid interface. A colloidal suspension of submicron fluorescent core-shell silica-based particles was sprayed by an ultrasonic nebulizer. The dynamics of the aerosol settling was investigated by numerical simulation to determine the carrier gas flow rate, which was further verified through experimentation. Fluorescent microscopy, a non-vacuum imaging technique, was used to observe the particles deposited on the substrate. It was found that the apparent (fluorescent) size distribution was shifted from 2.9 ± 6.0 μm to 1.7 ± 2.2 μm, which is correlated to the shift in the aggregate size from 0.70 μm to 0.24 μm due to the changes in the colloidal suspension concentration. In addition, the uniformity of the particles dispersed on the substrate was not significantly affected by the suspension’s concentration, as confirmed by the inter-particle distance analysis. It is therefore suggested that the method presented here may potentially be applied for the deposition and analysis of submicron particles on various types of substrate (i.e. air-liquid interface) without the need for vacuum imaging analysis (e.g. electron microscopy).
format Article
author Ferry Faizal
Suryani Saallah
Azusa Takagi
I. Wuled Lenggoro
author_facet Ferry Faizal
Suryani Saallah
Azusa Takagi
I. Wuled Lenggoro
author_sort Ferry Faizal
title The Deposition of Submicron Fluorescent Aerosol Particles by a Closed-Loop Flow System
title_short The Deposition of Submicron Fluorescent Aerosol Particles by a Closed-Loop Flow System
title_full The Deposition of Submicron Fluorescent Aerosol Particles by a Closed-Loop Flow System
title_fullStr The Deposition of Submicron Fluorescent Aerosol Particles by a Closed-Loop Flow System
title_full_unstemmed The Deposition of Submicron Fluorescent Aerosol Particles by a Closed-Loop Flow System
title_sort deposition of submicron fluorescent aerosol particles by a closed-loop flow system
publishDate 2018
url https://eprints.ums.edu.my/id/eprint/25170/1/The%20Deposition%20of%20Submicron%20Fluorescent%20Aerosol%20Particles%20by%20a%20Closed-Loop%20Flow%20System.pdf
https://eprints.ums.edu.my/id/eprint/25170/7/The%20Deposition%20of%20Submicron%20Fluorescent%20Aerosol%20Particles%20by%20a%20Closed-Loop%20Flow%20System%201.pdf
https://eprints.ums.edu.my/id/eprint/25170/
https://doi.org/10.11203/jar.33.102
_version_ 1760230333194698752
score 13.211869

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