Graphene nanoencapsulation action at an air/lipid interface.

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dc.contributor.authorFerrari, Gustavo Arrighi
dc.contributor.authorChacham, Helio
dc.contributor.authorOliveira, Alan Barros de
dc.contributor.authorMatos, Matheus Josué de Souza
dc.contributor.authorBatista, Ronaldo Junio Campos
dc.contributor.authorMeireles, Leonel Muniz
dc.contributor.authorBarboza, Ana Paula Moreira
dc.contributor.authorAlmeida, Ive Silvestre de
dc.contributor.authorNeves, Bernardo Ruegger Almeida
dc.contributor.authorLacerda, Rodrigo Gribel
dc.date.accessioned2023-01-18T18:26:53Z
dc.date.available2023-01-18T18:26:53Z
dc.date.issued2022pt_BR
dc.description.abstractIn the present work, we apply a microfluidic channel platform to study mechanical and adhesion properties of suspended graphene in contact with oleic acid (a lipid). In the platform, one side of the suspended graphene, atop a window in a fluidic channel, is placed in contact with the lipid, and the mechanical response of graphene is experimentally accessed with an atomic force microscope probe. We observe a strong effect arising from the presence of oleic acid: the probe undergoes a large jump-to-contact effect, being pulled and partially encapsulated by graphene, in a phagocytosis-like phenomenon, until it penetrates 0.2 lm into graphene. In contrast, such encapsulation effect is neg- ligible in the absence of oleic acid in the channel, with probe penetration of less than 0.02 lm. The lipid-induced encapsulation effect is observed to occur concurrently with graphene delamination from the window walls. Molecular dynamics simulations and continuum mechanics analytical modeling are also performed, the latter allowing quantitative fittings to the experiments.pt_BR
dc.identifier.citationFERRARI, G. A. et al. Graphene nanoencapsulation action at an air/lipid interface. Journal of Materials Science, v. 57, p. 6224-6232, 2022. Disponível em: <https://link.springer.com/article/10.1007/s10853-022-07030-0>. Acesso em: 06 jul. 2022.pt_BR
dc.identifier.doihttps://doi.org/10.1007/s10853-022-07030-0pt_BR
dc.identifier.issn1573-4803
dc.identifier.urihttp://www.repositorio.ufop.br/jspui/handle/123456789/15989
dc.identifier.uri2https://link.springer.com/article/10.1007/s10853-022-07030-0pt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.titleGraphene nanoencapsulation action at an air/lipid interface.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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