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year 27, Issue 2 (ICOP & ICPET 2021 2021)
ICOP & ICPET _ INPC _ ICOFS 2021, 27(2): 677-682 |
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Bourbour Z, Hajghassem H, Banihashemian S M. Effect of Gold Nanoparticle Diameter on Zinc Ion Detection based on Spectroscopy. ICOP & ICPET _ INPC _ ICOFS 2021; 27 (2) :677-682
URL: http://opsi.ir/article-1-2455-en.html
URL: http://opsi.ir/article-1-2455-en.html
1- MEMS Laboratory, Faculty of New Sciences and Technologies, University of Tehran, North Kargar Street, Tehran, Iran
Abstract: (860 Views)
Localized surface plasmon resonance is one of the detection methods in sensors that originates from the oscillation of electrons of metallic material against electromagnetic radiation. One of the important factors affecting this property of metal nanoparticles is the size of nanoparticles. In this study, gold nanoparticles made by vapor phase deposition method were used after the preparation process and nanoparticles with diameter of 20-50 nm were obtaind and confirmed by FESEM imaging. Zinc ions in a fluid medium interacted with gold nanoparticles of different diameters and ultraviolet-visible spectroscopy was used to investigate the resonance effect of the nanoparticles. The results showed that the diameter of gold nanoparticles at the peak of nanoparticle absorption is an important factor for determining the presence of zinc ions.
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