ITP OpenIR  > 理论物理所科研产出  > SCI论文
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
Source PublicationPLOS ONE
Language英语
KeywordTime Self-diffusion Quasi-2-dimensional Suspensions Hydrodynamic Interaction Water-interface Brownian-motion Spheres Microrheology Membrane Surface
AbstractOptical 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
Volume9Issue:1Pages:e85173
Subject AreaPhysics
DOI10.1371/journal.pone.0085173
Indexed BySCI
Funding OrganizationNational 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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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15507
Collection理论物理所科研产出_SCI论文
Corresponding AuthorZhang, W (reprint author), Fudan Univ, Dept Phys, State Key Lab Surface Phys, Shanghai 200433, Peoples R China.
Recommended Citation
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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