Bromide-Assisted Anisotropic Growth of Gold Nanoparticles as Substrates for Surface-Enhanced Raman Scattering
Joint Authors
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-12-07
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
We report herein a one-step synthesis of gold nanoparticles (Au NPs) of various shapes such as triangles, hexagons, and semispheres, using 5-hydroxyindoleacetic acid (5-HIAA) as the reducing agent in the presence of potassium bromide (KBr).
Anisotropic Au NPs have received ever-increasing attention in various areas of research due to their unique physical and chemical properties.
Numerous synthetic methods involving either top-down or bottom-up approaches have been developed to synthesize Au NPs with deliberately varied shapes, sizes, and configurations; however, the production of templateless, seedless, and surfactant-free singular-shaped anisotropic Au NPs remains a significant challenge.
The concentrations of hydrogen tetrachloroaurate (HAuCl4), 5-HIAA, and KBr, as well as the reaction temperature, were found to influence the resulting product morphology.
A detailed characterization of the resulting Au NPs was performed using ultraviolet-visible (UV-Vis) spectroscopy, scanning electron microscopy (SEM), and Raman spectroscopy.
The as-prepared Au NPs exhibited excellent surface-enhanced Raman scattering (SERS) properties, which make them very attractive for the development of SERS-based chemical and biological sensors.
American Psychological Association (APA)
Kerr, Melissa A.& Yan, Fei. 2016. Bromide-Assisted Anisotropic Growth of Gold Nanoparticles as Substrates for Surface-Enhanced Raman Scattering. Journal of Spectroscopy،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1110769
Modern Language Association (MLA)
Kerr, Melissa A.& Yan, Fei. Bromide-Assisted Anisotropic Growth of Gold Nanoparticles as Substrates for Surface-Enhanced Raman Scattering. Journal of Spectroscopy No. 2016 (2016), pp.1-8.
https://search.emarefa.net/detail/BIM-1110769
American Medical Association (AMA)
Kerr, Melissa A.& Yan, Fei. Bromide-Assisted Anisotropic Growth of Gold Nanoparticles as Substrates for Surface-Enhanced Raman Scattering. Journal of Spectroscopy. 2016. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1110769
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1110769