Graphene nanoencapsulation action at an air/lipid interface

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dc.creatorGustavo Arrighi Ferrari
dc.creatorRodrigo Gribel Lacerda
dc.creatorHelio Chacham
dc.creatorAlan Barros de Oliveira
dc.creatorMatheus Josué de Souza Matos
dc.creatorRonaldo Junio Campos Batista
dc.creatorLeonel Muniz Meireles
dc.creatorAna Paula Moreira Barboza
dc.creatorIve Silvestre de Almeida
dc.creatorBernardo Ruegger Almeida Neves
dc.date.accessioned2024-02-19T11:49:23Z
dc.date.accessioned2025-09-08T23:20:50Z
dc.date.available2024-02-19T11:49:23Z
dc.date.issued2022
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.identifier.doihttps://doi.org/10.1007/s10853-022-07030-0
dc.identifier.issn1573-4803
dc.identifier.urihttps://hdl.handle.net/1843/64141
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Materials Science
dc.rightsAcesso Restrito
dc.subjectGrafeno
dc.subjectLipídios
dc.subject.otherGraphene
dc.subject.otherLipid
dc.titleGraphene nanoencapsulation action at an air/lipid interface
dc.typeArtigo de periódico
local.citation.epage6232
local.citation.issue11
local.citation.spage6223
local.citation.volume57
local.description.resumoIn 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 µm into graphene. In contrast, such encapsulation effect is negligible in the absence of oleic acid in the channel, with probe penetration of less than 0.02 µm. 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.
local.identifier.orcidhttps://orcid.org/0000-0002-0824-5622
local.identifier.orcidhttps://orcid.org/0000-0003-4777-7370
local.identifier.orcidhttps://orcid.org/0000-0001-5041-9094
local.identifier.orcidhttps://orcid.org/0000-0002-6803-2223
local.identifier.orcidhttps://orcid.org/0000-0002-0398-3992
local.identifier.orcidhttps://orcid.org/0000-0002-7471-4968
local.identifier.orcidhttps://orcid.org/0000-0001-6550-7804
local.identifier.orcidhttps://orcid.org/0000-0002-1807-971X
local.identifier.orcidhttp://lattes.cnpq.br/0648137436207537
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://link.springer.com/article/10.1007/s10853-022-07030-0

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