INVESTIGADORES
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congresos y reuniones científicas
Título:
Evaluation of the role played by a spacer in the functionalization of maghemite (j- Fe2O3) nanoparticles with a nitro-dendron
Autor/es:
JULIETA I PAEZ; MELINA ANGELELLI; PABLO FROIMOWICZ; KATHARINA LANDFESTER; VERONICA BRUNETTI; MIRIAM C STRUMIA
Reunión:
Simposio; XII Simposio Latinoamericano de Polímeros SLAP; 2010
Resumen:
The synthesis of
nanoparticle-cored dendrimers (NCDs) through surface functionalization of iron
oxide nanoparticles (j-Fe2O3) by combining the
conventional silane coupling agent 3-(aminopropyl) triethoxysilane (APS) with
dendritic moieties is studied and presented. Much emphasis has been put on the
role play by each modifier and how they interact not only between themselves,
but also with the dispersing media wherein the resulting NCDs are. As a part of
the functionalization, redox-active nitro groups were introduced onto the surface
of each synthesized NCD thus making them electrochemically active. Then, the
obtained NCDs were immobilized onto glassy carbon electrodes. Both the NCDs and
modified electrodes are expected to be eventually exploited in analytical and
sensing applications.