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Paper Abstract and Keywords
Presentation 2025-10-22 14:30
Dynamics of lipid monolayer coating microbubbles for ultrasound medicine
Nguyen Nam Quoc (U. Tsukuba), Takeishi Naoki (Kyushu U.), Kanagawa Tetsuya (U. Tsukuba) US2025-36
Abstract (in Japanese) (See Japanese page) 
(in English) Lipid monolayers are usually used as shells for bubbles in medical applications. Under ultrasound, these lipid-coated bubbles start to oscillate. Until now, most models for lipid shell neglect the possibility of frequency dependence of mechanical properties of lipid monolayer. In this study, we derived dynamical equations for lipid monolayer following the analysis by Fournier [1]. The derived dynamical equations can describe the relaxation dynamics of lipid monolayer under small perturbation. Our results suggest that the lipid monolayer properties might depend on frequency of ultrasound, since at the relevant timescale, lipid monolayer can become fully relaxed or not.
Keyword (in Japanese) (See Japanese page) 
(in English) Ultrasound contrast agent / Lipid monolayer / Relaxation dynamics / / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 207, US2025-36, pp. 14-16, Oct. 2025.
Paper # US2025-36 
Date of Issue 2025-10-15 (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 US2025-36

Conference Information
Committee US  
Conference Date 2025-10-22 - 2025-10-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Photoacoustics, Ultrasound in medicine, Ultrasonics, etc. 
Paper Information
Registration To US 
Conference Code 2025-10-US 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Dynamics of lipid monolayer coating microbubbles for ultrasound medicine 
Sub Title (in English)  
Keyword(1) Ultrasound contrast agent  
Keyword(2) Lipid monolayer  
Keyword(3) Relaxation dynamics  
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1st Author's Name Nguyen Nam Quoc  
1st Author's Affiliation University of Tsukuba (U. Tsukuba)
2nd Author's Name Takeishi Naoki  
2nd Author's Affiliation Kyushu University (Kyushu U.)
3rd Author's Name Kanagawa Tetsuya  
3rd Author's Affiliation University of Tsukuba (U. Tsukuba)
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Speaker Author-1 
Date Time 2025-10-22 14:30:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2025-36 
Volume (vol) vol.125 
Number (no) no.207 
Page pp.14-16 
#Pages 3 
Date of Issue 2025-10-15 (US) 

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