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Characterization of COOH-Molecules Self-Asembled on Gold Nanoparticles

Nguyen, Kien Cuong (2020) Characterization of COOH-Molecules Self-Asembled on Gold Nanoparticles. Technical Report. Eprints-UET, UET.

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11-MUAsolution of the concentration of 10mM was deposited on a gold sutface through the self-assembled molecules. The gold surface was characterized by AFM-topography and XRD-spectrum. Both results show that the gold surface was composed of gold nanoparticles (AuNPs) piling up on each other and the most significant peak, centered at 2θ = 38.2°, is originated from the face centered cubic gold, respectively. COOH-functional molecules were self-assembled onto AuNPs surface through the reaction between thiol molucules and AuNPs to from the AuS binding. The IR spectrum of a COOH-terminated AuNP sample show the existence of carbonyl (C=O) and hydroxyl (OH) molecules on AuNP surface. Furthermore, COHNFITC@SiO2 bonding to AuNPs, observed on a confocal microscope, also revealed the COOH-molecules selft-assembled to AuNP-sample.

Item Type: Technical Report (Technical Report)
Uncontrolled Keywords: Self-asembled molecules (SAM), Gold nanoparticles (AuNPs)
Subjects: Engineering Physics
Divisions: Faculty of Engineering Physics and Nanotechnology (FEPN)
Depositing User: Assoc.Prof Cuong / Kien NGUYEN
Date Deposited: 11 Dec 2020 23:17
Last Modified: 14 Dec 2020 07:36

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