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题名: Brush in the bath of active particles: Anomalous stretching of chains and distribution of particles
作者: Li, HS;  Zhang, BK;  Li, J;  Tian, WD;  Chen, K
刊名: JOURNAL OF CHEMICAL PHYSICS
出版日期: 2015
卷号: 143, 期号:22, 页码:224903
学科分类: Chemistry ;  Physics
DOI: http://dx.doi.org/10.1063/1.4936921
通讯作者: Tian, WD (reprint author), Soochow Univ, Coll Phys Optoelect & Energy, Ctr Soft Condensed Matter Phys & Interdisciplinar, Suzhou 215006, Peoples R China.
文章类型: Article
英文摘要: The interaction between polymer brush and colloidal particles has been intensively studied in the last two decades. Here, we consider a flat chain-grafted substrate immersed in a bath of active particles. Simulations show that an increase in the self-propelling force causes an increase in the number of particles that penetrate into the brush. Anomalously, the particle density inside the main body of the brush eventually becomes higher than that outside the brush at very large self-propelling force. The grafted chains are further stretched due to the steric repulsion from the intruded particles. Upon the increase of the self-propelling force, distinct stretching behaviors of the chains were observed for low and high grafting densities. Surprisingly, we find a weak descent of the average end-to-end distance of chains at high grafting density and very large force which is reminiscent of the compression effect of a chain in the active bath. (C) 2015 AIP Publishing LLC.
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
关键词[WOS]: MOLECULAR-DYNAMICS SIMULATION ;  RESPONSIVE POLYMER BRUSHES ;  SURFACE INTERACTIONS ;  LUBRICATION FORCES ;  GOLD NANOPARTICLES ;  ARTIFICIAL CILIA ;  FREE-ENERGY ;  ORGANIZATION ;  ADSORPTION ;  NANOSENSORS
收录类别: SCI
项目资助者: National Basic Research Program of China (973 Program) [2012CB821500] ;  National Natural Science Foundation of China (NSFC) [21374073, 11074180, 21574096, 21474074]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20750
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Li, HS,Zhang, BK,Li, J,et al. Brush in the bath of active particles: Anomalous stretching of chains and distribution of particles[J]. JOURNAL OF CHEMICAL PHYSICS,2015,143(22):224903.
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