Application of gold nanoparticles–epoxy surface nanocomposites for controlling hotspot density on a large surface area for SERS applications

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dc.contributor.authorBonyár, Attilacs
dc.contributor.authorZangana, Shereencs
dc.contributor.authorLednický, Tomášcs
dc.contributor.authorRigó, Istváncs
dc.contributor.authorCsarnovics, Istváncs
dc.contributor.authorVeres, Miklóscs
dc.coverage.issue1cs
dc.coverage.volume28cs
dc.date.accessioned2022-03-23T11:54:46Z
dc.date.available2022-03-23T11:54:46Z
dc.date.issued2021-10-01cs
dc.description.abstractThe applicability of a novel gold–epoxysurface nanocomposite for surface-enhanced Raman scattering (SERS) is investigated. The nanocomposite consists of ellipsoidal nanoparticles in a hexagonal arrangement, where the average particle diameter (D0) and interparticle gap (D) can be controlled in the 0.15–1.00 (D/D0) range on a large surface area (several cm 2). Numerical simulations were used to estimate the SERS enhancement factors of substrates with five different particle arrangements. The fabricated substrates’ surface was functionalized with 20 base-pair long double-stranded DNA molecules and the intensities of the characteristic Raman peaks related to DNA were used to quantify the substrate performance. It was proved that by optimizing the fabrication parameters and maximizing the interparticle coupling, the characteristic Raman intensities could be increased by more than 2.5 orders of magnitude.en
dc.formattextcs
dc.format.extent1-8cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationNano-Structures and Nano-Objects. 2021, vol. 28, issue 1, p. 1-8.en
dc.identifier.doi10.1016/j.nanoso.2021.100787cs
dc.identifier.issn2352-507Xcs
dc.identifier.other177209cs
dc.identifier.urihttp://hdl.handle.net/11012/204036
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofNano-Structures and Nano-Objectscs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S2352507X21000652cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2352-507X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectDNA detectionen
dc.subjectNanocomposite materialsen
dc.subjectRaman spectroscopyen
dc.subjectSERS substratesen
dc.titleApplication of gold nanoparticles–epoxy surface nanocomposites for controlling hotspot density on a large surface area for SERS applicationsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-177209en
sync.item.dbtypeVAVen
sync.item.insts2022.03.23 12:54:46en
sync.item.modts2022.03.23 12:15:16en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Chytré nanonástrojecs
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