Synthesis and characterization of gold nanorods
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Acta Crystallographica Section A
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Gold has unique properties in the macro scale, namely, low electrical resistance, protection against oxidation among many other
characteristics. However, when going to nanoscale, particles made of gold, and many other noble materials, also present striking
properties which opens a wide range of applications [1]. Gold nanorods (GN) with well-defined sizes can be used as sensors due to
its high biocompatibility and unique plasmon resonant properties. In recent applications, GN has been used to enhance chiral
recognition of enantiomers, drug carriers for photothermotherapy and promote optical information storage. The efficiency of these
applications depends on the fine-tuning of the rods radius and aspect ratios [2]. Therefore, optimized synthesis control and detailed
structural characterization of the GN on different synthesis times are crucial for the selection and application of the synthetized
nanorods. In this work a small change in the traditional synthesis procedure [3] led to a synthesis of GN with slower reaction speed
and nanorods with larger radius and smaller aspect ratios when compared to the original synthesis [4]. The structural characterization
of the GN was performed using Small-Angle X-Ray scattering, X-Ray Diffraction, Dynamic light scattering, Transmission Electron
microscopy and Ultraviolet-visible spectroscopy. As a result, the time evolution of the rods dimensions could be followed and
described (figure 1). As will be shown, the structural characterization enabled the description of the parameters as a function of
synthesis time as well as reliable quantification of molar concentrations.
Como referenciar
OLIVEIRA, C.L.P.; GARCIA, P.R.A.F.; ARAUJO, W.W.R.; TEOBALDO, G.B.M.; MENEZES, A.S. de; OTUBO, L. Synthesis and characterization of gold nanorods. Acta Crystallographica Section A, v. A79, 2023. DOI: 10.1107/S2053273323088204. Disponível em: https://repositorio.ipen.br/handle/123456789/48760. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.