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Flow-Induced Transport via Optical Heating of a Single Gold Nanoparticle
https://tokushima-u.repo.nii.ac.jp/records/2006985
https://tokushima-u.repo.nii.ac.jp/records/2006985ad0d4a86-1628-494a-8689-7fb71cc74572
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
jpcc_123_7_4512.pdf (1.02 MB)
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| Item type | 文献 / Documents(1) | |||||||||||||||||||||||
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| 公開日 | 2019-11-20 | |||||||||||||||||||||||
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| アクセス権 | open access | |||||||||||||||||||||||
| 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 | |||||||||||||||||||||||
| 出版社版DOI | ||||||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1021/acs.jpcc.8b11575 | |||||||||||||||||||||||
| 言語 | ja | |||||||||||||||||||||||
| 関連名称 | 10.1021/acs.jpcc.8b11575 | |||||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||||
| 出版タイプ | AM | |||||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||
| タイトル | Flow-Induced Transport via Optical Heating of a Single Gold Nanoparticle | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 著者 |
チカザワ, ジュンイチ
× チカザワ, ジュンイチ
× ウワダ, タカユキ
× 古部, 昭広
WEKO
763
× 橋本, 修一 |
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| 抄録 | ||||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||||
| 内容記述 | Optothermal trapping has gained increasing popularity in manipulation such as selecting, guiding, and positioning submicron objects because of a few mW laser power much lower than that required for optical trapping. The optotothermal trapping uses thermal gradient-induced phoretic motions, but the underlying physics of driving force has not been fully understood. In this study, we performed optotothermal trapping of 500-nm-diameter colloidal silica via a continuous laser illumination of a single gold nanoparticle from the bottom in a closed chamber. Under illumination, the tracer particles were attracted to the gold nanoparticle and trapped. Notably, the direction of migrating particles was always to hot gold nanoparticle regardless of the configuration of gold nanoparticle placed at two opposite sides of the chamber, on the bottom surface of an upper substrate (ceiling) or on the top surface of a lower substrate (floor). The previous interpretation based on thermal convective flow from the bottom to the top and circulating inside the chamber was only applicable to floor configuration and failed to explain our observation for ceiling. Instead, temperature-induced Marangoni effect at the water/superheated water interface is likely to play a role. This study promoted a better understanding of the driving mechanism in optothermal trapping. Moreover, as an application of the single-particle platform, we showed the photothermal phase separation-induced microdroplet formation of thermoresponsive polymers and the coating of non-thermoresponsive polymers on nanoparticles. | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 書誌情報 |
en : The Journal of Physical Chemistry C 巻 123, 号 7, p. 4512-4522, 発行日 2019-01-26 |
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| 収録物識別子タイプ | ISSN | |||||||||||||||||||||||
| 収録物識別子 | 19327447 | |||||||||||||||||||||||
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| 収録物識別子タイプ | ISSN | |||||||||||||||||||||||
| 収録物識別子 | 19327455 | |||||||||||||||||||||||
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| 収録物識別子タイプ | NCID | |||||||||||||||||||||||
| 収録物識別子 | AA1217589X | |||||||||||||||||||||||
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| 収録物識別子タイプ | NCID | |||||||||||||||||||||||
| 収録物識別子 | AA12192210 | |||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||
| 出版者 | ACS Publications | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 権利情報 | ||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 権利情報 | This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.8b11575. | |||||||||||||||||||||||
| EID | ||||||||||||||||||||||||
| 識別子 | 351657 | |||||||||||||||||||||||
| 識別子タイプ | URI | |||||||||||||||||||||||
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| 言語 | eng | |||||||||||||||||||||||
