mohsen2310
عضو جدید
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In this study the fruit extract of umbilicaria ,was used as reductive agent to bioproduce silver nanoparticles. By adding silver nitrate per extract, the reaction happened at room temperature and the color of the extract changed from light yellow to dark brown which led to the production of silver nanoparticles.
Nanotechnology is considered as an interesting field of research due to the production of nanoparticles in different form, size, chemical composition and dispersion and their various applications for human beings. Production, modification and application of metal nanoparticles have received much attention because of their small size which results in unique thermal, optical and electrical properties. Bioproduction methods are preferred in comparison with chemical and physical methods due to decrease in time, cost and energy. In this method there is no need to use toxic solvents or hazardous chemicals. Green production of nanoparticles is a nature friendly method in which natural solvents are used.
In this study the fruit extract of umbilicaria ,was used as reductive agent to bioproduce silver nanoparticles. By adding silver nitrate per extract, the reaction happened at room temperature and the color of the extract changed from light yellow to dark brown which led to the production of silver nanoparticles.
: Formation of silver nanoparticles was shown by observing an absorption of the peak in the wavelength of 460 nm via the spectrophometry device. The size and morphology of the produced nanoparticles were determined by Scanning Electron Microscope (SEM) and showed that the shape of particles were spherical with the average size of 30.53nm. In this research silver nanoparticles were produced by a nature friendly biological method without using any harmful chemicals
