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Spectrochim Acta A Mol Biomol Spectrosc. 2014 Jan 24;118:11-6. doi: 10.1016/j.saa.2013.08.066. Epub 2013 Aug 29.

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

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Centre for Ocean Research (NIOT-SU Collaborative Research Centre), Sathyabama University, Chennai 600 119, Tamil Nadu, India.


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 540 nm 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 12.17-38.26 nm in size.


Electron microscopy; Gold nanoparticles; Morinda citrifolia; X-ray technique

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