شماره ركورد كنفرانس :
4518
عنوان مقاله :
Preparation of colloidal silver nanoparticles with antibacterial activity by a simple chemical reduction method
Author/Authors :
Arefeh Sadat Dehnavi Food Process Engineering and Biotechnology Research Center - Amirkabir University of Technology (Tehran Polytechnic) , Abdol reza Aroujalian Department of Chemical Engineering - Amirkabir University of Technology (Tehran Polytechnic) , Ahmad reza Raisi Food Process Engineering and Biotechnology Research Center - Amirkabir University of Technology (Tehran Polytechnic) , Shahrzad Fazel Food Process Engineering and Biotechnology Research Center - Amirkabir University of Technology (Tehran Polytechnic)
كليدواژه :
Silver nanoparticles , chemical reduction , antibacterial activity , trisodium citrate
عنوان كنفرانس :
The 7th International Chemical Engineering Congress & Exhibition (IChEC 2011
چكيده لاتين :
In this study, a simple method for preparation of silver nanoparticles was proposed and the
stability and properties of nanoparticles were investigated. In this method, trisodium citrate was
used as a reducing agent. The effect of various experimental parameters such as temperature and
pH on the particle size and stability of nanoparticles was studied. The morphology of silver
nanoparticles was characterized by high resolution FE-SEM which showed the formation of silver
particles in the nano form. The absorption spectra of silver nanoparticles prepared by the proposed
technique showed an absorption maximum at 432 nm in UV-Vis spectrometry, which is a typical
absorption band of spherical silver nanoparticles. Besides, the antibacterial activity of silver
nanoparticles was evaluated by agar well diffusion method.
