Green Synthesis of Gold Nanoparticles Using Aqueous Extract of Garcinia mangostana Fruit Peels

By Kar Xin Lee, K. Shameli, M. Miyake, N. Kuwano, N. A. Khairudin, S. E. Mohamad, Yen Pin Yew. 2016

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The synthesis of gold nanoparticles (Au-NPs) is performed by the reduction of aqueous gold metal ions in contact with the aqueous peel extract of plant, Garcinia mangostana (G. mangostana). An absorption peak of the gold nanoparticles is observed at the range of 540–550źnm using UV-visible spectroscopy. All the diffraction peaks at 2ź = 38.48°, 44.85°, 66.05°, and 78.00° that index to (111), (200), (220), and (311) planes confirm the successful synthesis of Au-NPs. Mostly spherical shape particles with size range of 32.96 ± 5.25źnm are measured using transmission electron microscopy (TEM). From the FTIR results, the peaks obtained are closely related to phenols, flavonoids, benzophenones, and anthocyanins which suggest that they may act as the reducing agent. This method is environmentally safe without the usage of synthetic materials which is highly potential in biomedical applications.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/0c6313b8263d73ac3b40d93ff95a31d30b4ec194