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Zhang, W; Chen, S; Li, N; Zhang, JZ; Chen, W; Zhang, W (reprint author), Fudan Univ, Dept Phys, State Key Lab Surface Phys, Shanghai 200433, Peoples R China.
Correlated Diffusion of Colloidal Particles near a Liquid-Liquid Interface
发表期刊PLOS ONE
语种英语
关键词Time Self-diffusion Quasi-2-dimensional Suspensions Hydrodynamic Interaction Water-interface Brownian-motion Spheres Microrheology Membrane Surface
摘要Optical microscopy and multi-particle tracking are used to investigate the cross-correlated diffusion of quasi two-dimensional colloidal particles near an oil-water interface. The behaviors of the correlated diffusion along longitudinal and transverse direction are asymmetric. It is shown that the characteristic length for longitudinal and transverse correlated diffusion are particle diameter d and the distance z from particle center to the interface, respectively, for large particle separation r. The longitudinal and transverse correlated diffusion coefficient D-parallel to(r) and D-perpendicular to(r) are independent of the colloidal area fraction n when n<0.3, which indicates that the hydrodynamic interactions(HIs) among the particles are dominated by HIs through the surrounding fluid for small n. For high area fraction n>0.4, the power law exponent for the spatial decay of D-perpendicular to(r) begins to decrease, which suggests the HIs are more contributed from the 2D particle monolayer self for large n.
2014
ISSN1932-6203
卷号9期号:1页码:e85173
学科领域Physics
DOI10.1371/journal.pone.0085173
收录类别SCI
项目资助者National Science Fund for Talent Trainning in Basic Science [J1103204] ; National Science Fund for Talent Trainning in Basic Science [J1103204] ; National Science Fund for Talent Trainning in Basic Science [J1103204] ; National Science Fund for Talent Trainning in Basic Science [J1103204]
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15507
专题理论物理所科研产出_SCI论文
通讯作者Zhang, W (reprint author), Fudan Univ, Dept Phys, State Key Lab Surface Phys, Shanghai 200433, Peoples R China.
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GB/T 7714
Zhang, W,Chen, S,Li, N,et al. Correlated Diffusion of Colloidal Particles near a Liquid-Liquid Interface[J]. PLOS ONE,2014,9(1):e85173.
APA Zhang, W,Chen, S,Li, N,Zhang, JZ,Chen, W,&Zhang, W .(2014).Correlated Diffusion of Colloidal Particles near a Liquid-Liquid Interface.PLOS ONE,9(1),e85173.
MLA Zhang, W,et al."Correlated Diffusion of Colloidal Particles near a Liquid-Liquid Interface".PLOS ONE 9.1(2014):e85173.
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