PERSONAL DE APOYO
CAPPELLETTI Ariel Leonardo
artículos
Título:
Preparation, Characterization and Application of Modified Surfaces with 3,5-BIS (3,5-dinitrobenzoylamino) benzoic acid
Autor/es:
JULIETA I. PAEZ; ARIEL L. CAPPELLETTI; ANA M. BARUZZI; VERÓNICA BRUNETTI; MIRIAM C. STRUMIA
Revista:
MACROMOLECULAR SYMPOSIA
Editorial:
Wiley Interscience
Referencias:
Lugar: New York; Año: 2010 vol. 290 p. 37 - 45
ISSN:
1022-1360
Resumen:
The spontaneous adsorption of the dendron 3,5-Bis (3,5-dinitrobenzoylamino) benzoic acid (D-NO2) onto gold and carbon electrodes produced conductive surfaces with electroactive chemical functions. A comparative electrochemical behavior of both electrodes after dendron immobilization led us to conclude that the self-assembly of D-NO2 on carbon is faster and stronger. Considering this advantage, the surface of magnetic maghemite nanoparticles (MNPs) was modified using D-NO2. Firstly, MNPs were modified with APS as silane coupling agent and afterwards, D-NO2 was covalently attached to the surface, achieving nitro-functionalized MNPs. Subsequently, the immobilization of these modified MNPs onto glassy carbon surfaces was explored to generate a novel platform promising for biosensors development.
