Please use this identifier to cite or link to this item:
http://paper.sci.ui.ac.id/jspui/handle/2808.28/257
Title: | Microwave-Assisted Synthesis of Alginate-Stabilized Gold Nanoparticles |
Authors: | Foliatini Yulizar, Yoki Hafizah, Mas Ayu Elita |
Keywords: | alginate Au nanoparticle (Au-NP) microwave irradiation stabilizing mechanism |
Issue Date: | Dec-2014 |
Publisher: | DRPM Universitas Indonesia |
Series/Report no.: | Volume 18;Nomor 4 |
Abstract: | An efficient and rapid method for preparation of Au nanoparticles (Au-NP) has been developed by direct microwave irradiation of metal precursor and alginate mixed solution in a single step. Here, alginate molecules act as both the reducing and stabilizing agents of Au-NP. The obtained nanoparticles were characterized by ultraviolet-visible (UV-Vis) spectroscopy, particle size analyzer, fourier transform infrared spectroscopy, and transmission electron microscopy. The nanoparticles have a spherical form and perfectly capped with alginate when using alginate and chloro auric acid (HAuCl4) precursor in the concentration range of 0.50 to 0.75% (w/v) and 0.40 mM, respectively. The use of a lower concentration of alginate and/or higher concentration of HAuCl4 caused agglomeration to occur, thereby resulting in a bigger size of Au-NP and red shifting of surface plasmon resonance (SPR) peak to a higher wavelength. |
URI: | http://paper.sci.ui.ac.id/jspui/handle/2808.28/257 |
ISSN: | 2339-1995 (Print) 2356-0851 (Online) |
Appears in Collections: | Journal Collection |
Files in This Item:
File | Description | Size | Format | |
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YokiYulizar.MakaraJSS.2014.pdf | 3,97 MB | Adobe PDF | View/Open Request a copy |
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