Near infrared light-powered janus mesoporous silica nanoparticle motors
文献类型：期刊论文
| 作者 | Xuan, Mingjun1; Wu, Zhiguang1; Shao, Jingxin1; Dai, Luru2; Si, Tieyan1; He, Qiang1 |
| 刊名 | Journal of the american chemical society
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000376825900035 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.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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来源：高能物理研究所
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