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Mostafa A. El-Sayed
Mostafa A. El-Sayed
Tanzania
Publications
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Research Article
5-Fluorouracil Induces Plasmonic Coupling in Gold Nanospheres: New Generation of Chemotherapeutic Agents
Author(s): Mona B. Mohamed, Nour T. Adbel-Ghani, Ola M. El-Borady and Mostafa A. El-SayedMona B. Mohamed, Nour T. Adbel-Ghani, Ola M. El-Borady and Mostafa A. El-Sayed
Loading 5- Fluorouracil (5-FU) into gold nanoparticles (AuNPs) could enhance its activity as anticancer drug hugely by enhancing its ability for penetration through the cell membrane. Accordingly, this work is devoted to loading 5-FU into AuNPs surface and studying the binding mechanism of the drug to the surface of the gold nanoparticles. Our finding indicates that new absorption band appears at longer wavelength upon loading 5-FU into gold nanospheres capped with citrate. This near IR band is due to induced surface plasmon coupling via hydrogen bonding between 5-FU and surface capping AuNPs. This leads to great enhancement of the drug action as chemotherapeutic as well as photothermal agents. Factors which affect the binding between 5-FU and the AuNPs such as pH, time after mixing the drug with AuNPs, concentration of the 5-FU, have been studied in detail. Accordingly, the bi.. View More»
DOI: 10.4172/2157-7439.1000146