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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Dahirel, V. Jardat, M. Dufrêche, J. F. Turq, P. |
| Description | Country affiliation: France Author Affiliation: Dahirel V ( UPMC University Paris 06, UMR 7612, Paris, France.) |
| Abstract | Monte-Carlo simulations are used to study the ion-mediated effective interaction between weakly charged and highly charged nanoparticles in an implicit solvent. Three models of nanoparticles are successively studied, from crude charged hard spheres to dipolar and non-spherical nanoparticles. The analysis of the effective potential revealed that in an electrolyte solution, even a neutral nanoparticle feels an important repulsive force in the presence of a charged nanoparticle, with a typical range similar to the Debye length. When the two nanoparticles carry charges of opposite sign, we have shown that this repulsion can reverse the effect of the direct attractive electrostatic potential at short distances. This also yields the change of sign of the effective potential as a function of the relative orientations of two anisotropic nanoparticles. Moreover, we found that the 3-body terms of the effective potentials can overcome the 2-body terms, which is not observed in the case of symmetrically charged nanoparticles. |
| File Format | HTM / HTML |
| ISSN | 14639076 |
| Issue Number | 33 |
| Journal | Physical Chemistry Chemical Physics |
| Volume Number | 10 |
| e-ISSN | 14639084 |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Publisher Date | 2008-09-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Subscribed |
| Subject Keyword | Discipline Physics Discipline Biophysics Discipline Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Physical and Theoretical Chemistry |
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