Apparent softening of wet graphene membranes on a microfluidic platfor.

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Autor(es): dc.creatorFerrari, Gustavo Arrighi-
Autor(es): dc.creatorOliveira, Alan Barros de-
Autor(es): dc.creatorAlmeida, Ive Silvestre de-
Autor(es): dc.creatorMatos, Matheus Josué de Souza-
Autor(es): dc.creatorBatista, Ronaldo Junio Campos-
Autor(es): dc.creatorFernandes, Thales Fernando Damasceno-
Autor(es): dc.creatorMeireles, Leonel Muniz-
Autor(es): dc.creatorSilva Neto, Eliel Gomes da-
Autor(es): dc.creatorChacham, Helio-
Autor(es): dc.creatorNeves, Bernardo Ruegger Almeida-
Autor(es): dc.creatorLacerda, Rodrigo Gribel-
Data de aceite: dc.date.accessioned2025-08-21T15:06:44Z-
Data de disponibilização: dc.date.available2025-08-21T15:06:44Z-
Data de envio: dc.date.issued2019-06-06-
Data de envio: dc.date.issued2019-06-06-
Data de envio: dc.date.issued2018-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/11464-
Fonte completa do material: dc.identifierhttps://pubs.acs.org/doi/10.1021/acsnano.7b08841-
Fonte completa do material: dc.identifierhttps://doi.org/10.1021/acsnano.7b08841-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1002650-
Descrição: dc.descriptionGraphene is regarded as the toughest two-dimensional material (highest in-plane elastic properties) and, as a consequence, it has been employed/proposed as an ultrathin membrane in a myriad of microfluidic devices. Yet, an experimental investigation of eventual variations on the apparent elastic properties of a suspended graphene membrane in contact with air or water is still missing. In this work, the mechanical response of suspended monolayer graphene membranes on a microfluidic platform is investigated via scanning probe microscopy experiments. A high elastic modulus is measured for the membrane when the platform is filled with air, as expected. However, a significant apparent softening of graphene is observed when water fills the microfluidic system. Through molecular dynamics simulations and a phenomenological model, we associate such softening to a water-induced uncrumpling process of the suspended graphene membrane. This result may bring substantial modifications on the design and operation of microfluidic devices which exploit pressure application on graphene membranes.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectMechanical properties-
Palavras-chave: dc.subjectLiquid interface-
Título: dc.titleApparent softening of wet graphene membranes on a microfluidic platfor.-
Aparece nas coleções:Repositório Institucional - UFOP

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