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dc.contributor.authorArita, Yoshihiko
dc.contributor.authorTkachenko, Georgiy
dc.contributor.authorMcReynolds, Naomi
dc.contributor.authorMarro, Nicolas
dc.contributor.authorEdwards, William
dc.contributor.authorKay, Euan Robert
dc.contributor.authorDholakia, Kishan
dc.identifier.citationArita , Y , Tkachenko , G , McReynolds , N , Marro , N , Edwards , W , Kay , E R & Dholakia , K 2018 , ' Optical trapping of ultrasmooth gold nanoparticles in liquid and air ' , APL Photonics , vol. 3 , 070801 .
dc.identifier.otherPURE: 253344283
dc.identifier.otherPURE UUID: 79ead136-517a-43b9-9408-d423e79896f4
dc.identifier.otherScopus: 85055401845
dc.identifier.otherORCID: /0000-0001-8177-6393/work/56862261
dc.identifier.otherWOS: 000440605200001
dc.descriptionThis work is supported by the UK Engineering and Physical Sciences Research Council for funding through Grant (Nos. EP/P030017/1, EP/J01171X/1, EP/K016342/1, and EP/M506631/1) and the Leverhulme Trust (No. RPG-2015-042).en
dc.description.abstractOptical manipulation of gold nanoparticles has emerged as an exciting avenue for studies in nanothermometry, cell poration, optical binding, and optomechanics. However, conventional gold nanoparticles usually depart from a spherical shape, making such studies less controlled and leading to potential artifacts in trapping behavior. We synthesize ultrasmooth gold nanoparticles, which offer improved circularity and monodispersity. In this article, we demonstrate the advantages of such nanoparticles through a series of optical trapping experiments in both liquid and air. Compared to their conventional counterparts, ultrasmooth gold nanoparticles exhibit up to a two-fold and ten-fold reduction in standard deviation for trap stiffness measurements in liquid and air, respectively. They will enable more controlled studies of plasmon mediated light-matter interactions.
dc.relation.ispartofAPL Photonicsen
dc.rights© 2018 Author(s). Open Access article. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (
dc.subjectQC Physicsen
dc.titleOptical trapping of ultrasmooth gold nanoparticles in liquid and airen
dc.typeJournal articleen
dc.contributor.sponsorThe Royal Societyen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.contributor.institutionUniversity of St Andrews. Biomedical Sciences Research Complexen
dc.description.statusPeer revieweden

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