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标题：Gainful utilization of the highly intransigent weed ipomoea in the synthesis of gold nanoparticles
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作者：Tasneem Abbasi ; Tasneem Abbasi ; J. Anuradha 等
期刊名称：Journal of King Saud University - Science
印刷版ISSN：1018-3647
出版年度：2015
卷号：27
期号：1
页码：15-22
DOI：10.1016/j.jksus.2014.04.001
语种：English
出版社：Elsevier
摘要：Abstract The paper presents a new method for the biomimetic synthesis of gold nanoparticles (GNPs), in which a highly invasive and harmful weed Ipomoea carnea has been employed for the first time as the main bioagent. Extracts of all the three basic components of the plant – leaves, stem and root – were explored and were found to be suitable in effecting the GNP synthesis. The electron micrographs of the synthesized GNPs revealed the presence of particles of monodispersed spherical and polydispersed triangular, hexagonal, polygonal, rod, and truncated triangular shapes in sizes ranging 3–40 and 10–100nm, respectively. The presence of gold atoms was confirmed from the EDAX and X-ray diffraction studies. The FT-IR spectral study indicated that the polysaccharides and proteins in the plant extract could have been responsible for the reduction of gold ions to GNPs and the latter’s stabilization.
关键词：Ipomoea carnea ; I. fistulosa ; Gold nanoparticles; Biomimetic synthesis;