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pH-Responsive aggregation-induced emission of Au nanoclusters and crystallization of the Au(i)-thiolate shell

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dc.contributor.authorWang, J.
dc.contributor.authorGoswami, N.
dc.contributor.authorShu, T.
dc.contributor.authorSu, L.
dc.contributor.authorZhang, X.
dc.date.issued2018
dc.descriptionData source: Supplementary information, http://www.rsc.org/suppdata/c7/qm/c7qm00609h/c7qm00609h1.pdf
dc.description.abstractAggregation-induced emission (AIE) is an attractive strategy for enhancing the luminescence of metal nanoclusters (NCs). However, rational control of the AIE of Au NCs is currently one of the key challenges and fundamental understanding of the complex surface/interfacial structures, and the emission mechanism of AIE-type Au NCs is far from complete. In this study, we report a pH-controllable AIE accompanied with a self-assembly/disassembly process of Au NCs with Au(I)–thiolate complexes with glutathione (GSH)-protected AIE-type Au NCs as a model. It was found that the solution pH could be used to control the landscape of the Au(I)–thiolate complexes encapsulating the Au NCs, generating varied AIE. Transmission electron microscopy (TEM) studies revealed that the Au NCs were essentially embedded inside the pH-sensitive supramolecular assemblies of the Au(I)–thiolate complexes. It was further found that a certain degree of crystallization of the Au(I)–thiolate shell occurred on the surface of the Au NCs. This study expands the knowledge of both the surface/interfacial structures of AIE-type metal NCs and the control of their PL and their self-assembly.
dc.identifier.citationMaterials Chemistry Frontiers, 2018; 2(5):923-928
dc.identifier.doi10.1039/C7QM00609H
dc.identifier.issn2052-1537
dc.identifier.issn2052-1537
dc.identifier.urihttps://hdl.handle.net/11541.2/137068
dc.language.isoen
dc.publisherRSC
dc.relation.fundingNational Natural Science Foundation of China 21727815
dc.relation.fundingBeijing Municipal Science and Technology Commission z131102002813058
dc.rightsCopyright 2018 The Royal Society of Chemistry and the Chinese Chemical Society
dc.source.urihttps://doi.org/10.1039/C7QM00609H
dc.subjectwater-soluble gold
dc.subjectsilver nanoclusters
dc.subjectmetal nanoclusters
dc.subjectoptical-properties
dc.subjectcu nanoclusters
dc.subjectelectron-beam
dc.subjectnanoparticles
dc.subjectluminescence
dc.subjectfluorescence
dc.subjectcomplexes
dc.titlepH-Responsive aggregation-induced emission of Au nanoclusters and crystallization of the Au(i)-thiolate shell
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9916282005201831

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