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Paper Abstract and Keywords
Presentation 2024-08-01 15:00
Zeta Potential Analysis of Micron-sized Particles Accompanying Sedimentation -- Comparison between Electrophoretic Ultrasound and Light Scattering Methods --
Mao Yamada, Tomohisa Norisuye (KIT) US2024-23
Abstract (in Japanese) (See Japanese page) 
(in English) Zeta potential is a measure of stability of particle dispersion, and has been evaluated by electrophoretic light scattering (ELS) method. Though the optical methods allow us to measure the zeta potential of nanoparticle accurately, visible light is difficult to transmit in concentrated suspension containing micron-sized particles. Furthermore, it was difficult to evaluate the electrophoretic velocity stably due to sedimentation of micron-sized particles. Thus, electrophoretic ultrasound scattering (ESS) method, a new zeta potential evaluation method using MHz ultrasound has been developed in our laboratory. So far, the zeta potentials of micron-sized particles obtained by the ESS method were compared with the ELS method and titration, but detailed verification of sedimentation effects was not carried out. In this study, by increasing viscosity of the solvent to control the sedimentation velocity, the validity of zeta potentials obtained by the ESS and the ELS measurements was investigated.
Keyword (in Japanese) (See Japanese page) 
(in English) Ultrasound / Scattering / Microsphere / Electrophoresis / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 141, US2024-23, pp. 31-36, Aug. 2024.
Paper # US2024-23 
Date of Issue 2024-07-25 (US) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF US2024-23

Conference Information
Committee US  
Conference Date 2024-08-01 - 2024-08-02 
Place (in Japanese) (See Japanese page) 
Place (in English) Matsue Terrsa 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Material characterization, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2024-08-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Zeta Potential Analysis of Micron-sized Particles Accompanying Sedimentation 
Sub Title (in English) Comparison between Electrophoretic Ultrasound and Light Scattering Methods 
Keyword(1) Ultrasound  
Keyword(2) Scattering  
Keyword(3) Microsphere  
Keyword(4) Electrophoresis  
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1st Author's Name Mao Yamada  
1st Author's Affiliation Kyoto Institute of Technology (KIT)
2nd Author's Name Tomohisa Norisuye  
2nd Author's Affiliation Kyoto Institute of Technology (KIT)
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Speaker Author-1 
Date Time 2024-08-01 15:00:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2024-23 
Volume (vol) vol.124 
Number (no) no.141 
Page pp.31-36 
#Pages 6 
Date of Issue 2024-07-25 (US) 

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