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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| Format: | Article |
| Language: | English English |
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2018
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| 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 |
| _version_ | 1825713854312611840 |
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| 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 |
| collection | UMS |
| 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). |
| first_indexed | 2024-03-06T03:03:01Z |
| format | Article |
| id | ums.eprints-25170 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-03-06T03:03:01Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | 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 |
| 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 |
| title | 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_short | 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 |
| topic | Q Science (General) T Technology (General) |
| 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 |
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