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Enhanced resonance light scattering properties of gold nanoparticles due to cooperative binding
| Content Provider | Semantic Scholar |
|---|---|
| Author | Enriquez, A. Cruz Espejel, I. A. Rivero García, E. Andrés Díaz-García, Marta Elena |
| Copyright Year | 2008 |
| Abstract | AbstractThe interaction of 11-mercaptoundecanoic acid capped gold nanoparticles (MUA-GNPs) with europium ions and aminoacids has been studied by UV-Vis spectrophotometry, fluorescence, confocal fluorescence microscopy, resonance light scattering and TEM. Results demonstrated that hyper-Rayleigh scattering emission occurs upon the addition of lysine to the MUA-GNPs–Eu(III) system, thus providing an inherently sensitive method for lysine determination. The effects of geometrical factors of the gold nanoparticles (aspect ratio, particle size, cluster formation) and the surrounding medium (pH) on this behavior are discussed. The cooperative binding interactions of Eu3+ and lysine with gold nanoparticles permitted the discrimination of lysine from other amino acids. The probable mechanism for the spectral changes and the enhanced resonance light scattering observed is outlined. FigureGold nanoparticle resonance light scattering plasmon enhancement through cooperative binding with europium and lysine |
| Starting Page | 807 |
| Ending Page | 815 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1007/s00216-008-1829-y |
| PubMed reference number | 18273607 |
| Journal | Medline |
| Volume Number | 391 |
| Alternate Webpage(s) | http://www.cgiqtectijuana.mx/wp-content/uploads/2014/08/2008-Arti-NPT-Adriana.pdf |
| Alternate Webpage(s) | https://doi.org/10.1007/s00216-008-1829-y |
| Journal | Analytical and bioanalytical chemistry |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
