A Light-Activated Explosive Micropropeller

Abstract Self-propelled micro/nanomotors possess tremendous exciting promise in diverse fields. We describe an asymmetric, fuel-free and near-infrared light-powered torpedo micromotor, which is constructed by using a porous membrane-assisted layer-by-layer sol-gel method to form silica multilayer in...

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Autores principales:	Qianlan Rao, Tieyan Si, Zhiguang Wu, Mingjun Xuan, Qiang He
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/783679a729764c7a9e4c30c3cb776da6
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id	oai:doaj.org-article:783679a729764c7a9e4c30c3cb776da6
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spelling	oai:doaj.org-article:783679a729764c7a9e4c30c3cb776da62021-12-02T11:52:20ZA Light-Activated Explosive Micropropeller10.1038/s41598-017-04908-x2045-2322https://doaj.org/article/783679a729764c7a9e4c30c3cb776da62017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04908-xhttps://doaj.org/toc/2045-2322Abstract Self-propelled micro/nanomotors possess tremendous exciting promise in diverse fields. We describe an asymmetric, fuel-free and near-infrared light-powered torpedo micromotor, which is constructed by using a porous membrane-assisted layer-by-layer sol-gel method to form silica multilayer inside the pores, following by the deposition of gold nanoparticles on one end of the pores. In the absence of chemical fuels, the high propulsion of microtorpedoes under illumination of near-infrared light is owing to the photo-thermal effect of gold clusters, generating a thermal gradient inside the microtorpedoes. The speed of microtorpedoes is dependent on the laser powers and media. More interestingly, such fuel free-powered microtorpedoes could explode triggered by higher laser power at the predefined site and thus provide a new platform for future biomedical applications.Qianlan RaoTieyan SiZhiguang WuMingjun XuanQiang HeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Qianlan Rao Tieyan Si Zhiguang Wu Mingjun Xuan Qiang He A Light-Activated Explosive Micropropeller
description	Abstract Self-propelled micro/nanomotors possess tremendous exciting promise in diverse fields. We describe an asymmetric, fuel-free and near-infrared light-powered torpedo micromotor, which is constructed by using a porous membrane-assisted layer-by-layer sol-gel method to form silica multilayer inside the pores, following by the deposition of gold nanoparticles on one end of the pores. In the absence of chemical fuels, the high propulsion of microtorpedoes under illumination of near-infrared light is owing to the photo-thermal effect of gold clusters, generating a thermal gradient inside the microtorpedoes. The speed of microtorpedoes is dependent on the laser powers and media. More interestingly, such fuel free-powered microtorpedoes could explode triggered by higher laser power at the predefined site and thus provide a new platform for future biomedical applications.
format	article
author	Qianlan Rao Tieyan Si Zhiguang Wu Mingjun Xuan Qiang He
author_facet	Qianlan Rao Tieyan Si Zhiguang Wu Mingjun Xuan Qiang He
author_sort	Qianlan Rao
title	A Light-Activated Explosive Micropropeller
title_short	A Light-Activated Explosive Micropropeller
title_full	A Light-Activated Explosive Micropropeller
title_fullStr	A Light-Activated Explosive Micropropeller
title_full_unstemmed	A Light-Activated Explosive Micropropeller
title_sort	light-activated explosive micropropeller
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/783679a729764c7a9e4c30c3cb776da6
work_keys_str_mv	AT qianlanrao alightactivatedexplosivemicropropeller AT tieyansi alightactivatedexplosivemicropropeller AT zhiguangwu alightactivatedexplosivemicropropeller AT mingjunxuan alightactivatedexplosivemicropropeller AT qianghe alightactivatedexplosivemicropropeller AT qianlanrao lightactivatedexplosivemicropropeller AT tieyansi lightactivatedexplosivemicropropeller AT zhiguangwu lightactivatedexplosivemicropropeller AT mingjunxuan lightactivatedexplosivemicropropeller AT qianghe lightactivatedexplosivemicropropeller
_version_	1718395111245611008

A Light-Activated Explosive Micropropeller

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