Título

Heparin Assisted Photochemical Synthesis of Gold Nanoparticles and Their Performance as Sers Substrates

Autor

MARIA DEL PILAR RODRIGUEZ TORRES

LUIS ARMANDO DIAZ TORRES

SERGIO AUGUSTO ROMERO SERVIN

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Materias

CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI)

Resumen o descripción

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.

Fecha de publicación

23 de octubre de 2014

Tipo de publicación

Artículo

Recurso de información

http://cio.repositorioinstitucional.mx/jspui/handle/1002/73

http://cio.repositorioinstitucional.mx/jspui/handle/1002/410

Formato

application/pdf

Repositorio Orígen

REPOSITORIO INSTITUCIONAL DEL CIO

Descargas

397