Effect of horizontal strong static magnetic field on swimming behaviour of Paramecium caudatum
Molecular Physics 104 巻 10-11 号
1659-1666 頁
2006-05-20 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Effect of horizontal strong static magnetic field on swimming behaviour of Paramecium caudatum
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| 作成者 |
Tomishige Masahiko
Itoh Yasuhiro
Shibata Naho
Kosaka Toshikazu
Hosoya Hiroshi
Tanimoto Yoshifumi
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| 収録物名 |
Molecular Physics
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| 巻 | 104 |
| 号 | 10-11 |
| 開始ページ | 1659 |
| 終了ページ | 1666 |
| 抄録 |
Effect of horizontal strong static magnetic field on swimming behavior of Paramecium caudatum was studied by using a superconducting magnet. Around a center of a round vessel, random swimming at 0 T and aligned swimming parallel to the magnetic field (MF) of 8 T were observed. Near a wall of the vessel, however, swimming round and round along the wall at 0 T and aligned swimming of turning at right angles upon collision with the wall, which was remarkable around 1~4 T, were detected. It was experimentally revealed that the former MF-induced parallel swimming at the vessel center was caused physicochemically by the parallel magnetic orientation of the cell itself. From magnetic field dependence of the extent of the orientation, the magnetic susceptibility anisotropy (χ‖-χ⊥) was first obtained to be 3.4×10-23 emu cell-1 at 298 K for Paramecium caudatum. The orientation of the cell was considered to result from the magnetic orientation of the cell membrane. On the other hand, although mechanisms of the latter swimming near the vessel wall regardless of the absence and presence of the magnetic field are unclear at present, these experimental results indicate that whether the cell exists near the wall alters magnetic field effect on the swimming in the horizontal magnetic field.
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| 著者キーワード |
Strong Magnetic Field
Swimming Behavior
Paramecium caudatum
Protists, Susceptibility Anisotropy
Magnetic Orientation
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| NDC分類 |
生物科学・一般生物学 [ 460 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
Taylar & Francis
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| 発行日 | 2006-05-20 |
| 権利情報 |
Copyright (c) 2006 Taylar & Francis. This is an electronic version of an article published in "Molecular Physics Vol.104 No.10-11 pp.1659-1666" Molecular Physics is available at: http://dx.doi.org/10.1080/00268970600643556
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| 出版タイプ | Author’s Original（十分な品質であるとして、著者から正式な査読に提出される版） |
| アクセス権 | オープンアクセス |
| 日付 |
[作成日] 2006-05-20
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| 収録物識別子 |
[DOI] 10.1080/00268970600643556
[ISSN] 0026-8976
[NCID] AA00745902
[DOI] http://dx.doi.org/10.1080/00268970600643556
～の異版である
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