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Magnetically tunable control of light reflection in an unusual optical protein of squid
https://hiroshima.repo.nii.ac.jp/records/2006184
https://hiroshima.repo.nii.ac.jp/records/2006184c6a7b5c4-9fad-46cd-8b71-bb47235944e2
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
1.4976938.pdf (10.6 MB)
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-03-18 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Magnetically tunable control of light reflection in an unusual optical protein of squid | |||||||||||
| 言語 | en | |||||||||||
| 作成者 |
Iwasaka, Masakazu
× Iwasaka, Masakazu
× Tagawa, Kunifumi
× Kikuchi, Yutaka
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| アクセス権 | ||||||||||||
| アクセス権 | open access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
| 権利情報 | ||||||||||||
| 権利情報 | © 2017 Author(s). All article content, except where oth-erwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). [http://dx.doi.org/10.1063/1.4976938] | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述 | In this study, we focused on the magnetically tunable changes in the reflectivity of the protein reflectin, which is generated by squid and used to control their body surface color for camouflage in seawater. A cellular organelle called an iridosome was separated from the skin of the dorsal part of a squid (cuttlefish; Sepia esculenta), and the light reflection dynamics of iridosomes containing reflectin were measured with and without exposure to a magnetic field of 500 mT. The magnetic field induced both steady and transient increases of reflection by the iridosomes, suggesting that a reversible conformational change occurred inside the iridosomes when the magnetic field was switched on and off. The intensity of light scattering perpendicular to the direction of the magnetic field increased when the magnetic field was applied. This kind of behavior (Type I) occurred in the majority (60%) of the measured samples. Another kind of reflection change (Type II) was a transient increase in light reflection. It is speculated that the wave-shaped structure of the lipid membrane connected to reflectin proteins changed to enhance the light reflection of reflectin by altering the diamagnetic orientation of the lipid layer in the bent part of the membrane under the applied magnetic field. Overall, our results suggest that the mesoscale lipid layers changed their alignment diamagnetically and the length between iridescent layers was modified by the magnetic field, even though no obvious change in alignment occurred at the microscale. | |||||||||||
| 言語 | en | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | This work was supported by JSPS KAKENHI Grant-in-Aid for Scientific Research (B) Grant Number (16H03169). | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | AIP Publishing | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | journal article | |||||||||||
| 出版タイプ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
| 関連情報 | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1063/1.4976938 | |||||||||||
| 関連情報 | ||||||||||||
| 識別子タイプ | URI | |||||||||||
| 関連識別子 | https://aip.scitation.org/doi/10.1063/1.4976938 | |||||||||||
| 収録物識別子 | ||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||
| 収録物識別子 | 2158-3226 | |||||||||||
| 開始ページ | ||||||||||||
| 開始ページ | 056722 | |||||||||||
| 書誌情報 |
AIP Advances AIP Advances 巻 7, 号 5, p. 056722, 発行日 2017-02-14 |
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| 旧ID | 46764 | |||||||||||
