Facile synthesis of stable, water soluble, dendron-coated gold nanoparticles

Alan E. Enciso; Giovanni Doni; Riccardo Nifosì; Ferruccio Palazzesi; Roberto Gonzalez; Amy A. Ellsworth; Jeffery L. Coffer; Amy V. Walker; Giovanni M. Pavan; Ahmed A. Mohamed; Eric E. Simanek

doi:10.1039/C6NR09679D

Facile synthesis of stable, water soluble, dendron-coated gold nanoparticles†

Alan E. Enciso,^a Giovanni Doni,^b Riccardo Nifosì,^c Ferruccio Palazzesi,^de Roberto Gonzalez,

^a Amy A. Ellsworth,^f Jeffery L. Coffer,^a Amy V. Walker,^fg Giovanni M. Pavan,^h Ahmed A. Mohamed^ai and Eric E. Simanek^a

Author affiliations

^a Department of Chemistry, Texas Christian University, Fort Worth, TX 76109, USA

^b Department of Physics, King's College, London Strand, London WC2R 2NS, UK

^c NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Pisa, Italy

^d Department of Chemistry and Applied Biosciences, Eidgenössische Technische Hochschule Zürich, CH-8093 Zurich, Switzerland

^e Facoltá di Informatica, Istituto di Scienze Computazionali, Universitá della Svizzera Italiana, CH-6900 Lugano, Switzerland

^f Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, TX, USA

^g Department of Materials Science and Engineering, University of Texas at Dallas, Richardson, TX, USA

^h Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, Via Cantonale 2c, CH-6928 Manno, Switzerland

ⁱ Department of Chemistry, University of Sharjah, Sharjah, United Arab Emirates

Abstract

Upon reduction with sodium borohydride, diazonium tetrachloroaurate salts of triazine dendrons yield dendron-coated gold nanoparticles connected by a gold–carbon bond. These robust nanoparticles are stable in water and toluene solutions for longer than one year and present surface groups that can be reacted to change surface chemistry and manipulate solubility. Molecular modeling was used to provide insight on the hydration of the nanoparticles and their observed solubilties.

Nanoscale

Facile synthesis of stable, water soluble, dendron-coated gold nanoparticles†

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Facile synthesis of stable, water soluble, dendron-coated gold nanoparticles

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