Home > Press > Chemical Solutions Replaced with Herbal Extracts in Synthesis of Gold Nanoparticles
Abstract:
Iranian researchers suggested the extract of stevia plant as a replacement for chemical solvents and reducers in the synthesis of gold nanoparticles.
Chemical Solutions Replaced with Herbal Extracts in Synthesis of Gold Nanoparticles
Tehran, Iran | Posted on June 2nd, 2015The proposed method is quick and simple and doesn’t cause any environmental pollution.
Various chemical methods have been proposed for the synthesis of gold nanoparticles as the application of these particles has increased. These methods cause some problems, including environmental pollution and difficulty in synthesis. This research studied the possibility of using stevia leaf extract to reduce gold ions into atomic nanoparticles.
According to the researchers, the extract of stevia plant is biocompatible and it acts as a reducing and stabilizing agent. In addition, the simplicity of the method easily makes possible the quick biosynthesis of gold nanoparticles in different sizes.
Since the antibacterial effect of gold nanoparticles has been proved, these materials can be used in the production of detergents, packaging industry and production of medical drugs.
Gold nanoparticles stabilized with stevia extract in this research are absorbed by cells more than nanoparticles coated with chemical stabilizers (polymers). The reason is that nanoparticles stabilized with herbal extract contain various proteins and fibers on their surface. Therefore, the nanoparticles are more probable to diffuse into the cells through the multiple receivers of protein in comparison with the dual receiver of protein and chemical polymer. Therefore, it is expected that the transfer of protein and drugs into the cells can be adjusted by changing the size and shape of the nanoparticles.
Results of the research have been published in Journal of Photochemistry and Photobiology B: Biology, vol. 148, issue 1, 2015, pp. 101-106.
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