A multi-responsive intrinsically disordered protein (IDP)-directed green synthesis of fluorescent gold nanoclusters

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dc.contributor.authorBalu, R.
dc.contributor.authorBourgeois, L.
dc.contributor.authorElvin, C.
dc.contributor.authorHill, A.
dc.contributor.authorChoudhury, N.
dc.contributor.authorDutta, N.
dc.date.issued2015
dc.description.abstractHerein we demonstrate the green synthesis of fluorescent gold nanoclusters (AuNCs) using a multiresponsive intrinsically disordered protein (IDP) polymer, Rec1-resilin, as a multi-functional template. In a controlled environment, Rec1-resilin acts simultaneously as the directing agent and the reducer, and performs the role of a highly efficient stabilizer once AuNCs are formed. The evolution of the photophysical properties and the chemical states of AuNCs formed are measured using UV-Vis, fluorescence and X-ray photoelectron spectroscopy. Circular dichroism (CD) spectroscopy measures the intrinsically disordered nature of Rec1-resilin stabilizing AuNCs. High resolution transmission electron microscopy (HR-TEM) reveals the detailed structure and morphology of the generated AuNCs of <1.5 nm size. A local ordering resembling that of a face-centered cubic (FCC) structure with evidence of twinning was observed for the generated AuNCs. The AuNCs so formed exclude the use of toxic reducing agents and display excellent water dispersibility, photostability and environmental stability towards aggregation.
dc.description.statementofresponsibilityRajkamal Balu, Laure Bourgeois, Christopher M. Elvin, Anita J. Hill, Namita R. Choudhury and Naba K. Dutta
dc.identifier.citationJournal of Materials Chemistry B, 2015; 3(32):6580-6586
dc.identifier.doi10.1039/c5tb00659g
dc.identifier.issn2050-7518
dc.identifier.issn2050-750X
dc.identifier.orcidDutta, N. [0000-0003-4800-1910]
dc.identifier.urihttp://hdl.handle.net/2440/105109
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.relation.granthttp://purl.org/au-research/grants/arc/DP1092678
dc.relation.granthttp://purl.org/au-research/grants/arc/DP120103537
dc.rightsThis journal is © The Royal Society of Chemistry 2015
dc.source.urihttps://doi.org/10.1039/c5tb00659g
dc.titleA multi-responsive intrinsically disordered protein (IDP)-directed green synthesis of fluorescent gold nanoclusters
dc.typeJournal article
pubs.publication-statusPublished

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