Colloids

Publication Title: 
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy

Biologically inspired experimental process in synthesising nanoparticles is of great interest in present scenario. Biosynthesis of nanoparticles is considered to be one of the best green techniques in synthesising metal nanoparticles. Here, an in situ green biogenic synthesis of gold nanoparticles using aqueous extracts of Terminalia chebula as reducing and stabilizing agent is reported. Gold nanoparticles were confirmed by surface plasmon resonance in the range of 535 nm using UV-visible spectrometry.

Author(s): 
Kumar, Kesarla Mohan
Mandal, Badal Kumar
Sinha, Madhulika
Krishnakumar, Varadhan
Publication Title: 
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy

The development of new synthesis methods for monodispersed nanocrystals using cheap and nontoxic chemicals, environmentally benign solvents and renewable materials remains a challenge to the scientific community. The present work reports a new green method for the synthesis of gold nanoparticles. Four different ayurvedic arishtams are used for the reduction of Au(3+) to Au nanoparticles. This method is simple, efficient, economic and nontoxic. Gold nanoparticles having different sizes in the range from 15 to 23 nm could be obtained.

Author(s): 
Aromal, S. Aswathy
Babu, K. V. Dinesh
Philip, Daizy
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