The Green synthesis of gold nanoparticles using an aqueous root extract of Morinda citrifolia L

• Published in: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Vol. 118; pp. 11 - 16
• Main Authors: Suman, T.Y., Radhika Rajasree, S.R., Ramkumar, R., Rajthilak, C., Perumal, P.
• Format: Journal Article
• Language: English
• Published: England Elsevier B.V 24.01.2014
• Subjects: Electron microscopy; Gold - chemistry; Gold nanoparticles; Green Chemistry Technology - methods; Metal Nanoparticles - chemistry; Metal Nanoparticles - ultrastructure; Morinda - chemistry; Morinda citrifolia; Plant Extracts - chemistry; Plant Roots - chemistry; Spectrometry, X-Ray Emission; Spectrophotometry, Ultraviolet; Spectroscopy, Fourier Transform Infrared; X-Ray Diffraction; X-ray technique; X-ray technique; Electron microscopy; Gold nanoparticles; Morinda citrifolia
• ISSN: 1386-1425; 1873-3557
• DOI: 10.1016/j.saa.2013.08.066

•Green synthesis of gold nanoparticles using Morinda citrifolia root extract.•The reaction was performed at room temperature.•Protein may act as reducing and stabilization agents.•The biosynthesized gold nanoparticle were 8–17nm in size. In the present work, we describe the synthesis of gold nanoparticles using an aqueous root extract of Morinda citrifolia. UV–vis spectroscopy, XRD, FTIR, FE-SEM, EDX and TEM were performed to characterize the formation of gold nanoparticles. The synthesized gold nanoparticles were characterized by a peak at 540nm in the UV–vis spectrum. The XRD peaks at 38°, 44°, 64° and 77° can be indexed to the (111), (200), (220) and (311) Bragg’s reflections of cubic structure of metallic gold, respectively. The FTIR result showed that extract containing protein might be responsible for the formation of the nanoparticles and may play an important role in the stabilization of the formed nanoparticles. FESEM images revealed that the particles were triangle and mostly spherical in shape. TEM images clearly revealed the size of the nanoparticles were 12.17-38.26nm in size.