Like-charge attraction between metal nanoparticles in a 1:1 electrolyte solution
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/197128 |
Resumo: | We calculate the force between two spherical metal nanoparticles of charge Q1 and Q2 in a dilute 1:1 electrolyte solution. Numerically solving the nonlinear Poisson-Boltzmann equation, we find that metal nanoparticles with the same sign of charge can attract one another. This is fundamentally different from what is found for like-charged, nonpolarizable, colloidal particles, the two-body interaction potential for which is always repulsive inside a dilute 1:1 electrolyte. Furthermore, the existence of like-charge attraction between spherical metal nanoparticles is even more surprising in view of the result that such attraction is impossible between parallel metal slabs, showing the fundamental importance of curvature. To overcome a slow convergence of the numerical solution of the full nonlinear Poisson-Boltzmann equation, we developed a modified Derjaguin approximation which allows us to accurately and rapidly calculate the interaction potential between two metal nanoparticles or between a metal nanoparticle and a phospholipid membrane |
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Santos, Alexandre Pereira dosLevin, Yan2019-07-18T02:41:42Z20190031-9007http://hdl.handle.net/10183/197128001097723We calculate the force between two spherical metal nanoparticles of charge Q1 and Q2 in a dilute 1:1 electrolyte solution. Numerically solving the nonlinear Poisson-Boltzmann equation, we find that metal nanoparticles with the same sign of charge can attract one another. This is fundamentally different from what is found for like-charged, nonpolarizable, colloidal particles, the two-body interaction potential for which is always repulsive inside a dilute 1:1 electrolyte. Furthermore, the existence of like-charge attraction between spherical metal nanoparticles is even more surprising in view of the result that such attraction is impossible between parallel metal slabs, showing the fundamental importance of curvature. To overcome a slow convergence of the numerical solution of the full nonlinear Poisson-Boltzmann equation, we developed a modified Derjaguin approximation which allows us to accurately and rapidly calculate the interaction potential between two metal nanoparticles or between a metal nanoparticle and a phospholipid membraneapplication/pdfengPhysical review letters. Vol. 122, no. 24 (June 2019), 248005, 6 p.Nanopartículas metálicasEletrólitosEquação de Poisson-BoltzmannLike-charge attraction between metal nanoparticles in a 1:1 electrolyte solutionEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001097723.pdf.txt001097723.pdf.txtExtracted Texttext/plain26593http://www.lume.ufrgs.br/bitstream/10183/197128/2/001097723.pdf.txtaea3e19fcb09072570ebfd32f3b95491MD52ORIGINAL001097723.pdfTexto completo (inglês)application/pdf498266http://www.lume.ufrgs.br/bitstream/10183/197128/1/001097723.pdf111becdb42225ff22ffee0bd926d35b5MD5110183/1971282023-06-08 03:33:51.788579oai:www.lume.ufrgs.br:10183/197128Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-06-08T06:33:51Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Like-charge attraction between metal nanoparticles in a 1:1 electrolyte solution |
title |
Like-charge attraction between metal nanoparticles in a 1:1 electrolyte solution |
spellingShingle |
Like-charge attraction between metal nanoparticles in a 1:1 electrolyte solution Santos, Alexandre Pereira dos Nanopartículas metálicas Eletrólitos Equação de Poisson-Boltzmann |
title_short |
Like-charge attraction between metal nanoparticles in a 1:1 electrolyte solution |
title_full |
Like-charge attraction between metal nanoparticles in a 1:1 electrolyte solution |
title_fullStr |
Like-charge attraction between metal nanoparticles in a 1:1 electrolyte solution |
title_full_unstemmed |
Like-charge attraction between metal nanoparticles in a 1:1 electrolyte solution |
title_sort |
Like-charge attraction between metal nanoparticles in a 1:1 electrolyte solution |
author |
Santos, Alexandre Pereira dos |
author_facet |
Santos, Alexandre Pereira dos Levin, Yan |
author_role |
author |
author2 |
Levin, Yan |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Santos, Alexandre Pereira dos Levin, Yan |
dc.subject.por.fl_str_mv |
Nanopartículas metálicas Eletrólitos Equação de Poisson-Boltzmann |
topic |
Nanopartículas metálicas Eletrólitos Equação de Poisson-Boltzmann |
description |
We calculate the force between two spherical metal nanoparticles of charge Q1 and Q2 in a dilute 1:1 electrolyte solution. Numerically solving the nonlinear Poisson-Boltzmann equation, we find that metal nanoparticles with the same sign of charge can attract one another. This is fundamentally different from what is found for like-charged, nonpolarizable, colloidal particles, the two-body interaction potential for which is always repulsive inside a dilute 1:1 electrolyte. Furthermore, the existence of like-charge attraction between spherical metal nanoparticles is even more surprising in view of the result that such attraction is impossible between parallel metal slabs, showing the fundamental importance of curvature. To overcome a slow convergence of the numerical solution of the full nonlinear Poisson-Boltzmann equation, we developed a modified Derjaguin approximation which allows us to accurately and rapidly calculate the interaction potential between two metal nanoparticles or between a metal nanoparticle and a phospholipid membrane |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-07-18T02:41:42Z |
dc.date.issued.fl_str_mv |
2019 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/197128 |
dc.identifier.issn.pt_BR.fl_str_mv |
0031-9007 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001097723 |
identifier_str_mv |
0031-9007 001097723 |
url |
http://hdl.handle.net/10183/197128 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review letters. Vol. 122, no. 24 (June 2019), 248005, 6 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
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Universidade Federal do Rio Grande do Sul (UFRGS) |
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UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
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Repositório Institucional da UFRGS |
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http://www.lume.ufrgs.br/bitstream/10183/197128/2/001097723.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/197128/1/001097723.pdf |
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Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
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