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http://cio.repositorioinstitucional.mx/jspui/handle/1002/410| Heparin Assisted Photochemical Synthesis of Gold Nanoparticles and Their Performance as Sers Substrates | |
| MARIA DEL PILAR RODRIGUEZ TORRES LUIS ARMANDO DIAZ TORRES SERGIO AUGUSTO ROMERO SERVIN | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| Reactive and pharmaceutical-grade heparins were used as biologically compatible reducing and stabilizing agents to photochemically synthesize colloidal gold nanoparticles. Aggregates and anisotropic shapes were obtained photochemically under UV black-light lamp irradiation (λ = 366 nm). Heparin-functionalized gold nanoparticles were characterized by Scanning Electron Microscopy and UV-Vis spectroscopy. The negatively charged colloids were used for the Surface Enhanced Raman Spectroscopy (SERS) analysis of differently charged analytes (dyes). Measurements of pH were taken to inspect how the acidity of the medium affects the colloid-analyte interaction. SERS spectra were taken by mixing the dyes and the colloidal solutions without further functionalization or addition of any aggregating agent. | |
| 23-10-2014 | |
| Artículo | |
| CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA | |
| Aparece en las colecciones: | Articulos Arbitrados 2014 |
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| Fichero | Tamaño | Formato | |
|---|---|---|---|
| Heparin Assisted Photochemical Synthesis of Gold.pdf | 1.71 MB | Adobe PDF | Visualizar/Abrir |