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

Balu, R, Bourgeois, L, Elvin, C, Hill, A, Choudhury, N and Dutta, N 2015, 'A multi-responsive intrinsically disordered protein (IDP)-directed green synthesis of fluorescent gold nanoclusters', Journal of Materials Chemistry B, vol. 3, no. 32, pp. 6580-6586.


Document type: Journal Article
Collection: Journal Articles

Title A multi-responsive intrinsically disordered protein (IDP)-directed green synthesis of fluorescent gold nanoclusters
Author(s) Balu, R
Bourgeois, L
Elvin, C
Hill, A
Choudhury, N
Dutta, N
Year 2015
Journal name Journal of Materials Chemistry B
Volume number 3
Issue number 32
Start page 6580
End page 6586
Total pages 7
Publisher Royal Society of Chemistry
Abstract Herein 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 o1.5 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.
Subject Chemical Engineering not elsewhere classified
Interdisciplinary Engineering not elsewhere classified
Nanobiotechnology
DOI - identifier 10.1039/c5tb00659g
Copyright notice © The Royal Society of Chemistry 2015
ISSN 2050-750X
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