Presentation 2008-02-26
An effect of fluid microcapsules in acoustic radiation force at the artificial blood vessel
Yusuke MURAMATSU, Kohji MASUDA, Sawami UEDA, Ken ISHIHARA,
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Abstract(in English) Microcapsules are known to be acted force from ultrasound. Making use of the phenomena that microcapsules of μm order collapse themselves after ultrasound emission near their resonant frequency, physical DDS (Drug Delivery System) has been proposed. We have detected the local change of microcapsules density by producing standing wave near the bifurcated point in the artificial blood vessel. Then we estimated theoretically condition for active path selection of capsules at the bifurcated point. Furthermore, we observed difference of density in capsules suspension by changing strength of acoustic radiation force near the bifurcated point. Comparing the experimental results with theoretical equations, the condition for active path selection is calculated from acoustic radiation force and fluid resistance of capsules. It showed a possibility to control capsules direction and to lead to an objective point in blood vessel.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) DDS / microcapsules / acoustic radiation force / active control
Paper # US2007-109
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Committee US
Conference Date 2008/2/19(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An effect of fluid microcapsules in acoustic radiation force at the artificial blood vessel
Sub Title (in English)
Keyword(1) DDS
Keyword(2) microcapsules
Keyword(3) acoustic radiation force
Keyword(4) active control
1st Author's Name Yusuke MURAMATSU
1st Author's Affiliation School of Bio-Applications & Systems Engineering, Tokyo University A&T()
2nd Author's Name Kohji MASUDA
2nd Author's Affiliation School of Bio-Applications & Systems Engineering, Tokyo University A&T
3rd Author's Name Sawami UEDA
3rd Author's Affiliation School of Bio-Applications & Systems Engineering, Tokyo University A&T
4th Author's Name Ken ISHIHARA
4th Author's Affiliation School of Medicine, Ehime University
Date 2008-02-26
Paper # US2007-109
Volume (vol) vol.107
Number (no) 494
Page pp.pp.-
#Pages 5
Date of Issue