Influence of different stabilizers on the morphology of gold nanoparticles
Objectives The current study revealed that the used stabilizers greatly affect the morphology as well as the aspect ratio of the obtained gold nanoparticles. Background Control of the morphology and dimensions of gold nanoparticles during the preparation is an important task for targeting certain ap...
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Published in | Bulletin of the National Research Centre Vol. 43; no. 1; pp. 1 - 5 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
20.02.2019
Springer Nature B.V SpringerOpen |
Subjects | |
Online Access | Get full text |
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Summary: | Objectives
The current study revealed that the used stabilizers greatly affect the morphology as well as the aspect ratio of the obtained gold nanoparticles.
Background
Control of the morphology and dimensions of gold nanoparticles during the preparation is an important task for targeting certain applications in demand.
Material and methods
Gold nanoparticles were prepared by the reduction of tetrachloroauric(III) acid in the presence of different stabilizers: polyethyleneimine (PEI), polyvinylpyrrolidone (PVP), and chitosan.
Results
In the case of using polyethyleneimine, the produced nanoparticles showed a homogenous spherical structure. Meanwhile, in the case of using polyvinylpyrrolidone and chitosan, the produced nanoparticles experience non-homogenous morphology with great diversity. Transmission electron microscopy (TEM) and UV-visible spectrophotometry (UV-vis) techniques were employed to study the criteria of the obtained gold nanoparticles.
Conclusions
It was obviously concluded that the type and concentration of the reducing agents that were added during gold preparation and acted as stabilizer templates affect to a great extent the morphology and particle shape. Also, stabilizers affect the homogeneity of the produced gold nanoparticles. In the case of using polyethyleneimine, the produced nanoparticles showed a homogenous spherical structure. Meanwhile, in the case of polyvinylpyrrolidone and chitosan, the produced nanoparticles experience non-homogenous morphology with great diversity. |
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ISSN: | 2522-8307 2522-8307 |
DOI: | 10.1186/s42269-019-0070-5 |