| Presentation | 2017-01-25 [Poster Presentation] Mechanical resonances of microorganism by ultrasonic cavitation Yoshinori Ike, Atsushi Yabunaka, Ken Yamamoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We report details of cavitation bubble-induced cell oscillation. In the study, we evaluated inactivation of specific microorganisms (including fungi, bacteria, and algae) by ultrasound at different frequencies. The fungus Saccharomyces cerevisiae, the bacteria Escherichia coli, and three kinds of algae were tested. S. cerevisiae and the algae showed frequency dependence of inactivation. In contrast, activation of E. coli did not depend on frequency. The resonances frequencies and area deformations of the cells were analyzed by shell oscillation. The resonance frequencies were each on the order of several megahertz, consistent with the experimental results. Cells that showed constant deactivation at all frequencies showed a larger change in cell surface area compared with other microorganisms. Such cells are assumed to have been inactivated by bubble-induced mechanical oscillation of the cell wall. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Ultrasonic cavitation / microorganism / mechanical resonance / cells oscillations |
| Paper # | US2016-77 |
| Date of Issue | 2017-01-18 (US) |
| Conference Information | |
| Committee | EA / US |
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| Conference Date | 2017/1/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Doshisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics, and Related Topics |
| Chair | Mitsunori Mizumachi(Kyushu Inst. of Tech.) / Nobuyuki Endo(Kanagawa Univ.) |
| Vice Chair | Yoichi Haneda(Univ. of Electro-Comm.) / Suehiro Shimauchi(NTT) / Yoichi Itoh(Nihon Univ.) / Minoru Kurosawa(Tokyo Inst. of Tech.) |
| Secretary | Yoichi Haneda(KDDI R&D Labs.) / Suehiro Shimauchi(Akita Pref. Univ.) / Yoichi Itoh(Univ. of Electro-Comm.) / Minoru Kurosawa(Univ. of Toyama) |
| Assistant | Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / TREVINO Jorge(Tohoku Univ.) / Takeshi Morita(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Ultrasonics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Mechanical resonances of microorganism by ultrasonic cavitation |
| Sub Title (in English) | |
| Keyword(1) | Ultrasonic cavitation |
| Keyword(2) | microorganism |
| Keyword(3) | mechanical resonance |
| Keyword(4) | cells oscillations |
| 1st Author's Name | Yoshinori Ike |
| 1st Author's Affiliation | Kansai University(Kansai Univ.) |
| 2nd Author's Name | Atsushi Yabunaka |
| 2nd Author's Affiliation | Kansai University(Kansai Univ.) |
| 3rd Author's Name | Ken Yamamoto |
| 3rd Author's Affiliation | Kansai University(Kansai Univ.) |
| Date | 2017-01-25 |
| Paper # | US2016-77 |
| Volume (vol) | vol.116 |
| Number (no) | US-419 |
| Page | pp.pp.29-33(US), |
| #Pages | 5 |
| Date of Issue | 2017-01-18 (US) |