Cysteine Conjugated Gold Nanoparticles and their Scavenging Free Radicals Properties

Chih Wei Chou; Jen Ming Yang; Tsung Shi Yang; Yang Chia Shih; Hui Hsuan Hsieh; Ko Hsin Chang; Ko Shao Chen; Wu Lii Tzu; You Cheng Hseu; Yi Syuan Wei

doi:10.4028/www.scientific.net/AMR.974.112

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 974Cysteine Conjugated Gold Nanoparticles and their...

Cysteine Conjugated Gold Nanoparticles and their Scavenging Free Radicals Properties

Abstract:

This study deals with cysteine on gold (Au) nanoparticles which prepared by sodium citrate reduction. The effects of cysteine conjugated Au nanoparticles (Cys-c-Au NPs) on the microstructure and properties of the were investigated by Ultraviolet-visible spectroscopy (UV-Vis), Fourier-transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), and free radical scavenging ability. The results of UV-Vis and FTIR show that the cysteine was conjugated on Au NPs surface and the conjugates were found to be stable in water. The Energy-dispersive spectrometer (EDS) result shows the typical pick of the element sulfur (S) on surface of Cys-c-Au NPs. Finally, conjugates exhibited free radical scavenging ability in presence of cysteine.

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Periodical:

Advanced Materials Research (Volume 974)

Pages:

112-115

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.974.112

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Online since:

June 2014

Authors:

Chih Wei Chou*, Jen Ming Yang, Tsung Shi Yang, Yang Chia Shih, Hui Hsuan Hsieh, Ko Hsin Chang, Ko Shao Chen, Wu Lii Tzu, You Cheng Hseu, Yi Syuan Wei

Keywords:

Conjugated, Cysteine, Free Radical Scavenging, Gold

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