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dc.contributor.authorWang, Luda
dc.contributor.authorCantley, Lauren
dc.contributor.authorKoenig, Steven P.
dc.contributor.authorLiu, Xinghui
dc.contributor.authorPellegrino, John
dc.contributor.authorStrano, Michael S.
dc.contributor.authorScott Bunch, J.
dc.contributor.authorDrahushuk, Lee William
dc.date.accessioned2016-02-24T22:22:09Z
dc.date.available2016-02-24T22:22:09Z
dc.date.issued2015-08
dc.date.submitted2014-04
dc.identifier.issn1748-3387
dc.identifier.issn1748-3395
dc.identifier.urihttp://hdl.handle.net/1721.1/101263
dc.description.abstractAn ability to precisely regulate the quantity and location of molecular flux is of value in applications such as nanoscale three-dimensional printing, catalysis and sensor design. Barrier materials containing pores with molecular dimensions have previously been used to manipulate molecular compositions in the gas phase, but have so far been unable to offer controlled gas transport through individual pores. Here, we show that gas flux through discrete ångström-sized pores in monolayer graphene can be detected and then controlled using nanometre-sized gold clusters, which are formed on the surface of the graphene and can migrate and partially block a pore. In samples without gold clusters, we observe stochastic switching of the magnitude of the gas permeance, which we attribute to molecular rearrangements of the pore. Our molecular valves could be used, for example, to develop unique approaches to molecular synthesis that are based on the controllable switching of a molecular gas flux, reminiscent of ion channels in biological cell membranes and solid-state nanopores.en_US
dc.description.sponsorshipNational Science Foundation (U.S.). Division of Civil, Mechanical and Manufacturing (CAREER Grant 1054406)en_US
dc.description.sponsorshipNational Science Foundation (U.S.). Industry/University Cooperative Research Center for Membrane Science, Engineering and Technologyen_US
dc.description.sponsorshipNational Nanotechnology Infrastructure Networken_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant ECS-0335765)en_US
dc.description.sponsorshipNational Science Foundation (U.S.). Graduate Research Fellowship (Grant DGE-1247312)en_US
dc.description.sponsorshipUnited States. Army Research Office (Contract W911NF-13-D-0001)en_US
dc.language.isoen_US
dc.publisherNature Publishing Groupen_US
dc.relation.isversionofhttp://dx.doi.org/10.1038/nnano.2015.158en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourcearXiven_US
dc.titleMolecular valves for controlling gas phase transport made from discrete ångström-sized pores in grapheneen_US
dc.typeArticleen_US
dc.identifier.citationWang, Luda, Lee W. Drahushuk, Lauren Cantley, Steven P. Koenig, Xinghui Liu, John Pellegrino, Michael S. Strano, and J. Scott Bunch. “Molecular Valves for Controlling Gas Phase Transport Made from Discrete ångström-Sized Pores in Graphene.” Nature Nanotechnology 10, no. 9 (August 3, 2015): 785–90.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Chemical Engineeringen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.mitauthorWang, Ludaen_US
dc.contributor.mitauthorDrahushuk, Lee Williamen_US
dc.contributor.mitauthorStrano, Michael S.en_US
dc.relation.journalNature Nanotechnologyen_US
dc.eprint.versionOriginal manuscripten_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dspace.orderedauthorsWang, Luda; Drahushuk, Lee W.; Cantley, Lauren; Koenig, Steven P.; Liu, Xinghui; Pellegrino, John; Strano, Michael S.; Scott Bunch, J.en_US
dc.identifier.orcidhttps://orcid.org/0000-0003-0148-9656
dc.identifier.orcidhttps://orcid.org/0000-0003-2944-808X
mit.licensePUBLISHER_POLICYen_US


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