What is it about?

In this study, two green procedures for Silver-Graphene Oxide (Ag-GO) nanocomposite synthesis were investigated. As a common method, AgNO3 was first loaded on the GO surface and then was reduced and stabilized by walnut green husk extract, producing Ag-GO-І. As an innovative approach, GO was first exposed to the extract and then the AgNO3 was added as the second step, producing Ag-GO-П.

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Why is it important?

Contrary to popular belief, the results of this investigation shows: o Graphene Oxide (GO) neither show antibacterial nor cytotoxic activities by itself. o Compounding of silver nanoparticles with GO does not necessarily result in enhanced antibacterial or cytotoxic activities. o The step of the synthesizing process on which reducing/stabilizing agent is added seriously affects the properties of final products.


This method could be introduced as an applicable procedure for the synthesis of different metal nanoparticles on the graphene oxide sheets possibly providing the various forthcoming medicinal, industrial and technological applications.

Mr. Sadegh Khorrami
University of Isfahan

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This page is a summary of: An Improved Method for Fabrication of Ag-GO Nanocomposite with Controlled Anti-Cancer and Anti-bacterial Behavior; A Comparative Study, Scientific Reports, June 2019, Springer Science + Business Media,
DOI: 10.1038/s41598-019-45332-7.
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