Triangular Gold Nanoplate Growth by Oriented Attachment of Au Seeds Generated by Strong Field Laser Reduction

The synthesis of surfactant-free Au nanoplates is desirable for the development of biocompatible therapeutics/diagnostics. Rapid Δ-function energy deposition by irradiation of aqueous KAuCl4 solution with a 5 s burst of intense shaped laser pulses, followed by slow addition of H2O2, results in selec...

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Veröffentlicht in:	Nano letters 2015-05, Vol.15 (5), p.3377-3382
Hauptverfasser:	Tangeysh, Behzad, Moore Tibbetts, Katharine, Odhner, Johanan H, Wayland, Bradford B, Levis, Robert J
Format:	Artikel
Sprache:	eng
Schlagworte:	Attachment Deposition Femtosecond Formations Gold Gold - chemistry Hydrogen Peroxide - pharmacology Lasers Metal Nanoparticles - chemistry Nanostructure Nanostructures - chemistry Seeds Surface Properties
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creator	Tangeysh, Behzad Moore Tibbetts, Katharine Odhner, Johanan H Wayland, Bradford B Levis, Robert J
description	The synthesis of surfactant-free Au nanoplates is desirable for the development of biocompatible therapeutics/diagnostics. Rapid Δ-function energy deposition by irradiation of aqueous KAuCl4 solution with a 5 s burst of intense shaped laser pulses, followed by slow addition of H2O2, results in selective formation of nanoplates with no additional reagents. The primary mechanism of nanoplate formation is found to be oriented attachment of the spherical seeds, which self-recrystallize to form crystalline Au nanoplates.
doi_str_mv	10.1021/acs.nanolett.5b00709
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subjects	Attachment Deposition Femtosecond Formations Gold Gold - chemistry Hydrogen Peroxide - pharmacology Lasers Metal Nanoparticles - chemistry Nanostructure Nanostructures - chemistry Seeds Surface Properties
title	Triangular Gold Nanoplate Growth by Oriented Attachment of Au Seeds Generated by Strong Field Laser Reduction
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