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	Near infrared light-powered janus mesoporous silica nanoparticle motors
	Xuan, Mingjun1; Wu, Zhiguang1; Shao, Jingxin1; Dai, Luru2; Si, Tieyan1; He, Qiang1
刊名	Journal of the american chemical society
	2016-05-25
卷号	138期号:20页码:6492-6497
ISSN号	0002-7863
DOI	10.1021/jacs.6b00902
通讯作者	Si, tieyan(tieyansi@hit.edu.cn) ; He, qiang(qianghe@hit.edu.cn)
英文摘要	We describe fuel-free, near-infrared (nir)-driven janus mesoporous silica nanoparticle motors (jmsnms) with diameters of 50, 80, and 120 nm. the janus structure of the jmsnms is generated by vacuum sputtering of a 10 nm au layer on one side of the msnms. upon exposure to an nir laser, a localized photothermal effect on the au half-shells results in the formation of thermal gradients across the jmsnms; thus, the generated self-thermophoresis can actively drive the nanomotors to move at an ultrafast speed, for instance, up to 950 body lengths/s for 50 nm jmsnms under an nir laser power of 70.3 w/cm(2). the reversible "on/off" motion of the jmsnms and their directed movement along the light gradient can be conveniently modulated by a remote nir laser. moreover, dynamic light scattering measurements are performed to investigate the coexisting translational and rotational motion of the jmsnms in the presence of both self-thermophoretic forces and strong brownian forces. 'these nir-powered nanomotors demonstrate a novel strategy for overcoming the necessity of chemical fuels and exhibit a significant improvement in the maneuverability of nanomotors while providing potential cargo transportation in a biofriendly manner.
WOS关键词	CONTROLLED PROPULSION ; AUTONOMOUS MOVEMENT ; CARGO TRANSPORT ; CANCER-THERAPY ; NANOMOTORS ; DRIVEN ; DELIVERY ; MOTION ; NANORODS ; RELEASE
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000376825900035
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176507
专题	高能物理研究所
通讯作者	Si, Tieyan; He, Qiang
作者单位	1.Harbin Inst Technol, Micro Nanotechnol Res Ctr, State Key Lab Robot & Syst HIT, Harbin 150080, Peoples R China 2.Natl Ctr Nanosci & Technol, CAS Key Lab Biomed Effects Nanomat & Nanosafety, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Xuan, Mingjun,Wu, Zhiguang,Shao, Jingxin,et al. Near infrared light-powered janus mesoporous silica nanoparticle motors[J]. Journal of the american chemical society,2016,138(20):6492-6497.
APA	Xuan, Mingjun,Wu, Zhiguang,Shao, Jingxin,Dai, Luru,Si, Tieyan,&He, Qiang.(2016).Near infrared light-powered janus mesoporous silica nanoparticle motors.Journal of the american chemical society,138(20),6492-6497.
MLA	Xuan, Mingjun,et al."Near infrared light-powered janus mesoporous silica nanoparticle motors".Journal of the american chemical society 138.20(2016):6492-6497.

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