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Interaction of nanoparticles with ideal liquid-liquid interfaces
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Cheung, David L. and Bon, Stefan Antonius Franciscus (2009) Interaction of nanoparticles with ideal liquid-liquid interfaces. Physical Review Letters, Vol.102 (No.6). 066103. doi:10.1103/PhysRevLett.102.066103 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.102.066103
Abstract
Using molecular simulations the interaction between a noncharged nanoparticle and an ideal liquid-liquid interface is studied. The free energy profile as function of nanoparticle-interface separation is determined using Wang-Landau sampling. Comparison between the simulation results and macroscopic theories shows that the latter give a poor description of the free energy profile. In particular, they underestimate both the range of interaction between the particle and the interface and its strength, with the discrepancy lessening as the particle radius increases. On increasing the solvent chemical potential the interaction strength increases and the interaction range decreases due to the increase in interfacial tension and consequent decrease in interfacial width.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QD Chemistry | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Science > Centre for Scientific Computing |
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| Library of Congress Subject Headings (LCSH): | Nanoparticles, Liquid-liquid interfaces, Molecular dynamics -- Computer simulation, Molecules -- Computer simulation | ||||
| Journal or Publication Title: | Physical Review Letters | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 0031-9007 | ||||
| Official Date: | 13 February 2009 | ||||
| Dates: |
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| Volume: | Vol.102 | ||||
| Number: | No.6 | ||||
| Number of Pages: | 4 | ||||
| Page Range: | 066103 | ||||
| DOI: | 10.1103/PhysRevLett.102.066103 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC) |
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