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Green Synthesis of Silver Nanoparticles Capped with Natural Carbohydrates Using Ephedra intermedia

[ Vol. 7 , Issue. 1 ]

Author(s):

Alireza Ebrahiminezhad, Saeed Taghizadeh, Aydin Berenjian, Fatemeh Heidaryan Naeini and Younes Ghasemi   Pages 104 - 112 ( 9 )

Abstract:


Green synthesis of silver nanoparticles (AgNPs) was successfully developed by using Ephedra intermedia stem extract. The effect of silver precursor concentration, amount of stem extract, and reaction temperature on the bioreduction reaction was evaluated. Natural carbohydrates present in Ephedra intermedia were found to act as an effective reducing and capping agent during AgNPs biosynthesis. AgNPs were characterized by UV-vis spectroscopy, TEM, XRD, FTIR and DLS analysis. The particles were crystalline and spherical in shape having diameters between 10 and 36 nm, the mean diameter being 24 nm. Zeta potential of the prepared nanoparticles was measured to be -30 mV which is an acceptable charge for colloid particles.

Keywords:

Ag nanoparticles, aqueous extract, bioreduction, biosynthesis, plant.

Affiliation:

Department of Medical Biotechnology, School of Medicine, and Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran and Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences Research Centre, Shiraz University of Medical Sciences, Shiraz, NourDanesh Institute of Higher Education, Meymeh, School of Engineering, Faculty of Science and Engineering, The University of Waikato, Hamilton, NourDanesh Institute of Higher Education, Meymeh, Department of Medical Biotechnology, School of Medicine, and Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran and Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences Research Centre, Shiraz University of Medical Sciences, Shiraz



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