A synthesis route of gold nanoparticles without using a reducing agent

Vargas-Hernandez, C.; Mariscal, M. M.; Esparza, R.; Yacaman, M. J.
May 2010
Applied Physics Letters;5/24/2010, Vol. 96 Issue 21, p213115
Academic Journal
In the present work we show that synthesis of gold nanoparticles (NPs) could be performed by microwave-assisted technique without the need of adding any reducing agent. Only water and the gold salt precursor are necessary to generate the NPs under the influence of microwaves. The produced NPs have been characterized by state-of-art microscopy techniques, like high resolution transmission electron microscopy, scanning electron microscopy, and energy-dispersive x-ray. Theoretical calculations have been performed to support the experimental findings. It is expected that the present work opens routes for synthesis of NPs using green, fast, and safe methods.


Related Articles

  • Synthesis of gold nanoparticles by the fungus Aspergillus niger and its efficacy against mosquito larvae. Soni, Namita; Prakash, Soam // Reports in Parasitology;2012, Vol. 2, p1 

    The fungus Aspergillus niger has been selected for the synthesis of gold nanoparticles (AuNPs). The authors report the role of fungi in the synthesis of AuNPs. Additionally, the larvicidal efficacy of these AuNPs was tested using the larvae of three mosquito species: Anopheles stephensi, Culex...

  • Anisotropic gold nanoparticles and gold plates biosynthesis using alfalfa extracts. Montes, M.; Mayoral, A.; Deepak, F.; Parsons, J.; Jose-Yacamán, M.; Peralta-Videa, J.; Gardea-Torresdey, J. // Journal of Nanoparticle Research;Aug2011, Vol. 13 Issue 8, p3113 

    Industrial and medical applications for gold nanoparticles are extensive, yet highly dependent on their chemical and structural properties. Thus, harnessing the size and shape of nanoparticles plays an important role in nanoscience and nanotechnology. Anisotropic polyhedra and nanoplates were...

  • Formation of submicrometer-scale gold nanoparticle aggregates and their self-organization into “supracrystals”. Yonglan Luo // Colloid Journal;May2007, Vol. 69 Issue 3, p391 

    Nearly spherical, submicrometer-scale gold nanoparticle aggregates about 250 nm in diameter are formed directly from an HAuCl4- p-phenylenediamine aqueous solution at room temperature. The as-formed aggregates were characterized by various techniques, including scanning electron microscopy,...

  • Synthesis of as Gold Nanoparticles Using Schiff Base. MIHAI, S. // Acta Physica Polonica, A.;Feb2013, Vol. 123 Issue 2, p254 

    The Schiff base is used for the first time in the preparation of gold nanoparticles by the interaction of tris (triphenylphosphinegold)oxonium tetrafloroborate in acetonitrile medium. The gold nanostructures were characterized using UV-vis spectroscopy, X-ray diffraction, scanning electron...

  • Effect of Citrate Concentration on Colloidal Gold (Au) Nanoparticles Produced Using Electro-Dissolution-Reduction Method. HAIZA, Haroon; YAACOB, Iskandar; AHMAD AZHAR, Ahmad Zahirani // Materials Science Forum;2016, Vol. 840, p267 

    Colloidal gold nanoparticles have been successfully synthesized using electrodissolution- reduction process that consists of a simple two-electrode cells connected to a DC power supply. Throughout the process, bulk gold at the anode was oxidized into gold cations which then reacted with the...

  • Biogenic gold Nanoparticles and Its Antibacterial Activities: Houttuynia Cordata Leaf Extract. Sreekanth, T.V.M.; In-Yong Eom // Advanced Materials Research;2014, Issue 1051, p392 

    Gold nanoparticles (AuNPs) can be prepared in a number of chemical techniques, which are not environmentally friendly. Biosynthesis of nanoparticles by plant extracts is currently under exploitation. In this work, we describe an eco-friendly technique for green synthesis of AuNPs from AuCl4...

  • Formation of ultrafine uniform gold nanoparticles by sputtering and redeposition. Xiuli Zhou; Qiangmin Wei; Kai Sun; Lumin Wang // Applied Physics Letters;3/30/2009, Vol. 94 Issue 13, p133107 

    Uniformly distributed Au nanoparticles with controllable size were fabricated by focused ion beam bombardment of thin gold films. In situ scanning electron microscopy and ex situ transmission electron microscopy were used to characterize the nanoparticles. Results show that a dual particle size...

  • The Influences of H2 Plasma Pretreatment on the Growth of Vertically Aligned Carbon Nanotubes by Microwave Plasma Chemical Vapor Deposition. Sheng-Rui Jian; Yuan-Tsung Chen; Chih-Feng Wang; Hua-Chiang Wen; Wei-Ming Chiu; Chu-Shou Yang // Nanoscale Research Letters;Jun2008, Vol. 3 Issue 6, p230 

    The effects of H2 flow rate during plasma pretreatment on synthesizing the multiwalled carbon nanotubes (MWCNTs) by using the microwave plasma chemical vapor deposition are investigated in this study. A H2 and CH4 gas mixture with a 9:1 ratio was used as a precursor for the synthesis of MWCNT on...

  • Microwave technique applied to the hydrothermal synthesis and sintering of calcia stabilized zirconia nanoparticles. Antonino Rizzuti; Anna Corradi; Cristina Leonelli; Roberto Rosa; Roman Pielaszek; Witold Lojkowski // Journal of Nanoparticle Research;Jan2010, Vol. 12 Issue 1, p327 

    Abstract  This study is focused on the synthesis of zirconia nanopowders stabilized by 6%mol calcia prepared under hydrothermal conditions using microwave technology. Sodium hydroxide-based hydrolysis of zirconyl chloride solution containing calcium nitrate followed by microwave...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics