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Open AccessArticle

Biosynthesis of Silver Nanoparticles Using Brown Marine Macroalga, Sargassum Muticum Aqueous Extract

1
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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Department of Medicine, Applied Biology Research Centre, Mashhad Branch, Islamic Azad University, Mashhad 917568, Iran
4
Department of Chemistry, Faculty of Science, Shiraz Branch, Islamic Azad University, Shiraz 71993-3, Iran
5
Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
*
Authors to whom correspondence should be addressed.
Materials 2013, 6(12), 5942-5950; https://doi.org/10.3390/ma6125942
Received: 25 September 2013 / Revised: 28 October 2013 / Accepted: 8 November 2013 / Published: 18 December 2013
(This article belongs to the Section Biomaterials)
Biological synthesis of nanoparticles is a relatively new emerging field of nanotechnology which has economic and eco-friendly benefits over chemical and physical processes of synthesis. In the present work, for the first time, the brown marine algae Sargassum muticum (S. muticum) aqueous extract was used as a reducing agent for the synthesis of nanostructure silver particles (Ag-NPs). Structural, morphological and optical properties of the synthesized nanoparticles have been characterized systematically by using FTIR, XRD, TEM and UV–Vis spectroscopy. The formation of Ag-NPs was confirmed through the presence of an intense absorption peak at 420 nm using a UV–visible spectrophotometer. A TEM image showed that the particles are spherical in shape with size ranging from 5 to 15 nm. The nanoparticles were crystalline in nature. This was confirmed by the XRD pattern. From the FTIR results, it can be seen that the reduction has mostly been carried out by sulphated polysaccharides present in S. muticum. View Full-Text
Keywords: silver nanoparticles; Sargassum muticum; marine algae; biosynthesis silver nanoparticles; Sargassum muticum; marine algae; biosynthesis
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Azizi, S.; Namvar, F.; Mahdavi, M.; Ahmad, M.B.; Mohamad, R. Biosynthesis of Silver Nanoparticles Using Brown Marine Macroalga, Sargassum Muticum Aqueous Extract. Materials 2013, 6, 5942-5950.

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