Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/ncomms15381 |
Experimental observation of flow fields around active Janus spheres | |
Campbell, Andrew, I1; Ebbens, Stephen J.1; Illien, Pierre2; Golestanian, Ramin3,4 | |
2019-09-02 | |
发表期刊 | NATURE COMMUNICATIONS
![]() |
ISSN | 2041-1723 |
出版年 | 2019 |
卷号 | 10 |
文章类型 | Article |
语种 | 英语 |
国家 | England; France; Germany |
英文摘要 | The phoretic mechanisms at stake in the propulsion of asymmetric colloids have been the subject of debates during the past years. In particular, the importance of electrokinetic effects on the motility of Pt-PS Janus sphere was recently discussed. Here, we probe the hydrodynamic flow field around a catalytically active colloid using particle tracking velocimetry both in the freely swimming state and when kept stationary with an external force. Our measurements provide information about the fluid velocity in the vicinity of the surface of the colloid, and confirm a mechanism for propulsion that was proposed recently. In addition to offering a unified understanding of the nonequilibrium interfacial transport processes at stake, our results open the way to a thorough description of the hydrodynamic interactions between such active particles and understanding their collective dynamics. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000483306100003 |
WOS关键词 | SELF-PROPULSION ; MOTION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203306 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Sheffield, Dept Chem & Biol Engn, Mappin St, Sheffield S1 3JD, S Yorkshire, England; 2.Sorbonne Univ, CNRS, Lab PHENIX, 4 Pl Jussieu, F-75005 Paris, France; 3.Max Planck Inst Dynam & Self Org MPIDS, D-37077 Gottingen, Germany; 4.Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3PU, England |
推荐引用方式 GB/T 7714 | Campbell, Andrew, I,Ebbens, Stephen J.,Illien, Pierre,et al. Experimental observation of flow fields around active Janus spheres[J]. NATURE COMMUNICATIONS,2019,10. |
APA | Campbell, Andrew, I,Ebbens, Stephen J.,Illien, Pierre,&Golestanian, Ramin.(2019).Experimental observation of flow fields around active Janus spheres.NATURE COMMUNICATIONS,10. |
MLA | Campbell, Andrew, I,et al."Experimental observation of flow fields around active Janus spheres".NATURE COMMUNICATIONS 10(2019). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论