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Journal of Applied Sciences
Year: 2012  |  Volume: 12  |  Issue: 17  |  Page No.: 1782 - 1791

Protection Effect of Gold Nanoparticles Coated on Fruit and Vegetables Using PVD Method

Haleh Kangarlou and Sakine Shirvaliloo    

Abstract: Gold particles can be real jewels, specially at the nano size they are in great demand by scientists. A field that has showed fast growth over the past decades is the use of gold nanoparticles in biology, or life sciences. The aim of this work was to use, physical method to deposit gold nanoparticles as a protection layer on the fruits and vegetables. There is no any report about direct and physical vapor deposition on fruits and vegetables yet. Gold nanolayers of 40 nano meter thickness were coated on one side of apple, cucumber, lettuce and tomato, by Physical Vapor Deposition (PVD) method, in high vacuum condition at room temperature. Deposition angle of gold nanoparticles were vertical to all species. After coating we kept them in normal room temperature. Protection of gold nanolayers and time of these protections were investigated. Time length protection of gold nanoparticles has an increasing trend for apple, tomato, lettuce and cucumber.

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