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dc.contributor.authorZong, Jie
dc.contributor.authorYang, Xiaoling
dc.contributor.authorTrinchi, Adrian
dc.contributor.authorHardin, Simon
dc.contributor.authorCole, Ivan
dc.contributor.authorZhu, Yihua
dc.contributor.authorLi, Chunzhong
dc.contributor.authorMuster, Tim
dc.contributor.authorWei, Gang
dc.date.accessioned2017-11-22T06:23:20Z
dc.date.available2017-11-22T06:23:20Z
dc.date.issued2013
dc.identifier.issn2040-3364
dc.identifier.doi10.1039/c3nr02527f
dc.identifier.urihttp://hdl.handle.net/10072/173762
dc.description.abstractCarbon dots (CDs) have many fascinating fluorescent properties, however, their low quantum yield limits their applications. In this study, the photoluminescence (PL) of CDs in the vicinity of gold nanoparticles (Au NPs) is enhanced significantly due to the surface plasmon resonance (SPR) of the Au NPs. This is achieved by conjugating Au NPs and CDs to dendrimers (PAMAM) through an amidation reaction, resulting in the formation of the Au–PAMAM–CD conjugates. The maximum 62-fold enhancement was obtained with an optimized molar ratio between Au NPs, PAMAM, and CDs. In this process, PAMAM, which serves as a spacer, can keep Au NPs and CDs at an appropriate distance for PL enhancement. The adjustment of the amount of Au NPs or CDs linked to PAMAM can induce the optimum PL enhancement. This strategy can be easily applied to different metal–space–fluorophore systems to enhance the fluorescence of fluorophores.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherRoyal Society of Chemistry
dc.relation.ispartofpagefrom11200
dc.relation.ispartofpageto11206
dc.relation.ispartofissue22
dc.relation.ispartofjournalNanoscale
dc.relation.ispartofvolume5
dc.subject.fieldofresearchNanotechnology not elsewhere classified
dc.subject.fieldofresearchPhysical Sciences
dc.subject.fieldofresearchChemical Sciences
dc.subject.fieldofresearchTechnology
dc.subject.fieldofresearchcode100799
dc.subject.fieldofresearchcode02
dc.subject.fieldofresearchcode03
dc.subject.fieldofresearchcode10
dc.titlePhotoluminescence enhancement of carbon dots by gold nanoparticles conjugated via PAMAM dendrimers
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorCole, Ivan


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