Please use this identifier to cite or link to this item: 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
Appears in Collections:Articulos Arbitrados 2014

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