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dc.contributor.authorHughes, Zak E.*
dc.contributor.authorWalsh, T.R.*
dc.date.accessioned2018-05-10T11:42:33Z
dc.date.available2018-05-10T11:42:33Z
dc.date.issued2016
dc.identifier.citationHughes ZE and Walsh TR (2016) Non-covalent adsorption of amino acid analogues on noble-metal nanoparticles: influence of edges and vertices. Physical Chemistry Chemical Physics. 18(26): 17525-17533.en_US
dc.identifier.urihttp://hdl.handle.net/10454/15841
dc.descriptionYesen_US
dc.description.abstractThe operation of many nanostructured biomolecular sensors and catalysts critically hinges on the manipulation of non-covalent adsorption of biomolecules on unfunctionalised noble-metal nanoparticles (NMNPs). Molecular-level structural details of the aqueous biomolecule/NMNP interface are pivotal to the successful realisation of these technologies, but such experimental data are currently scarce and challenging to obtain. Molecular simulations can generate these details, but are limited by the assumption of non-preferential adsorption to NMNP features. Here, via first principles calculations using a vdW-DF functional, and based on nanoscale sized NMNPs, we demonstrate that adsorption preferences to NP features vary with adsorbate chemistry. These results show a clear distinction between hydrocarbons, that prefer adsorption to facets over edges/vertices, over heteroatomic molecules that favour adsorption onto vertices over facets. Our data indicate the inability of widely used force-fields to correctly capture the adsorption of biomolecules onto NMNP surfaces under aqueous conditions. Our findings introduce a rational basis for the development of new force-fields that will reliably capture these phenomena.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1039/C6CP02323Aen_US
dc.rights(c) 2016 RSC. Full-text reproduced in accordance with the publisher's self-archiving policy.en_US
dc.subjectGolden_US
dc.subjectPlatinumen_US
dc.subjectNanoparticlesen_US
dc.subjectDensity functional theoryen_US
dc.subjectAmino acidsen_US
dc.titleNon-covalent adsorption of amino acid analogues on noble-metal nanoparticles: influence of edges and verticesen_US
dc.status.refereedYesen_US
dc.date.Accepted2016-06-01
dc.date.application2016-06-01
dc.typeArticleen_US
dc.type.versionAccepted manuscripten_US
refterms.dateFOA2018-07-28T03:57:35Z


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